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authorSimon MacMullen <simon@lshift.net>2010-05-20 16:02:16 +0100
committerSimon MacMullen <simon@lshift.net>2010-05-20 16:02:16 +0100
commit58cd29086433c4b55c08d4d96ec22a1095a416aa (patch)
tree7deeaede0af5d87bbea58b5fe26fbf1e7b83e27d
parenta90f4f749272f3f65263e20c36800b704d318af6 (diff)
downloadrabbitmq-server-58cd29086433c4b55c08d4d96ec22a1095a416aa.tar.gz
Forgot to add this.
-rw-r--r--src/rabbit_reader_queue_collector.erl110
1 files changed, 110 insertions, 0 deletions
diff --git a/src/rabbit_reader_queue_collector.erl b/src/rabbit_reader_queue_collector.erl
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+++ b/src/rabbit_reader_queue_collector.erl
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+%% The contents of this file are subject to the Mozilla Public License
+%% Version 1.1 (the "License"); you may not use this file except in
+%% compliance with the License. You may obtain a copy of the License at
+%% http://www.mozilla.org/MPL/
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+%% License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% The Original Code is RabbitMQ.
+%%
+%% The Initial Developers of the Original Code are LShift Ltd,
+%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd.
+%%
+%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd,
+%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd
+%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial
+%% Technologies LLC, and Rabbit Technologies Ltd.
+%%
+%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift
+%% Ltd. Portions created by Cohesive Financial Technologies LLC are
+%% Copyright (C) 2007-2010 Cohesive Financial Technologies
+%% LLC. Portions created by Rabbit Technologies Ltd are Copyright
+%% (C) 2007-2010 Rabbit Technologies Ltd.
+%%
+%% All Rights Reserved.
+%%
+%% Contributor(s): ______________________________________.
+%%
+
+-module(rabbit_reader_queue_collector).
+
+-behaviour(gen_server).
+
+-export([start_link/0, register_exclusive_queue/2, delete_all/1, shutdown/1]).
+
+-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
+ terminate/2, code_change/3]).
+
+-record(state, {exclusive_queues}).
+
+-include("rabbit.hrl").
+
+%%----------------------------------------------------------------------------
+
+-ifdef(use_specs).
+
+-spec(start_link/0 :: () -> {'ok', pid()}).
+-spec(register_exclusive_queue/2 :: (pid(), pid()) -> {'ok'}).
+-spec(delete_all/1 :: (pid()) -> {'ok'}).
+
+-endif.
+
+%%----------------------------------------------------------------------------
+
+start_link() ->
+ gen_server:start_link(?MODULE, [], []).
+
+register_exclusive_queue(CollectorPid, Q) ->
+ gen_server:call(CollectorPid, {register_exclusive_queue, Q}, infinity).
+
+delete_all(CollectorPid) ->
+ gen_server:call(CollectorPid, delete_all, infinity).
+
+shutdown(CollectorPid) ->
+ gen_server:call(CollectorPid, shutdown, infinity).
+
+%%----------------------------------------------------------------------------
+
+init([]) ->
+ {ok, #state{exclusive_queues = dict:new()}}.
+
+%%--------------------------------------------------------------------------
+
+handle_call({register_exclusive_queue, Q}, _From,
+ State = #state{exclusive_queues = Queues}) ->
+ MonitorRef = erlang:monitor(process, Q#amqqueue.pid),
+ {reply, ok,
+ State#state{exclusive_queues = dict:append(MonitorRef, Q, Queues)}};
+
+handle_call(delete_all, _From,
+ State = #state{exclusive_queues = ExclusiveQueues}) ->
+ [rabbit_misc:with_exit_handler(
+ fun() -> ok end,
+ fun() ->
+ erlang:demonitor(MonitorRef),
+ rabbit_amqqueue:delete(Q, false, false)
+ end)
+ || {MonitorRef, [Q]} <- dict:to_list(ExclusiveQueues)],
+ {reply, ok, State};
+
+handle_call(shutdown, _From, State) ->
+ {stop, normal, ok, State}.
+
+handle_cast(_Msg, State) ->
+ {noreply, State}.
+
+handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason},
+ State = #state{exclusive_queues = ExclusiveQueues}) ->
+ {noreply, State#state{exclusive_queues =
+ dict:erase(MonitorRef, ExclusiveQueues)}}.
+
+terminate(_Reason, _State) ->
+ ok.
+
+code_change(_OldVsn, State, _Extra) ->
+ {ok, State}.
+
+%%--------------------------------------------------------------------