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-rw-r--r--lib/diameter/src/base/diameter.erl3
-rw-r--r--lib/diameter/src/base/diameter_config.erl5
-rw-r--r--lib/diameter/src/base/diameter_lib.erl33
-rw-r--r--lib/diameter/src/base/diameter_service.erl85
4 files changed, 92 insertions, 34 deletions
diff --git a/lib/diameter/src/base/diameter.erl b/lib/diameter/src/base/diameter.erl
index d74e091e11..1bbdf6e34d 100644
--- a/lib/diameter/src/base/diameter.erl
+++ b/lib/diameter/src/base/diameter.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -337,6 +337,7 @@ call(SvcName, App, Message) ->
:: {transport_module, atom()}
| {transport_config, any()}
| {transport_config, any(), 'Unsigned32'() | infinity}
+ | {pool_size, pos_integer()}
| {applications, [app_alias()]}
| {capabilities, [capability()]}
| {capabilities_cb, evaluable()}
diff --git a/lib/diameter/src/base/diameter_config.erl b/lib/diameter/src/base/diameter_config.erl
index dd1c9b73bb..270faa9542 100644
--- a/lib/diameter/src/base/diameter_config.erl
+++ b/lib/diameter/src/base/diameter_config.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -554,6 +554,9 @@ opt({watchdog_config, L}) ->
opt({spawn_opt, Opts}) ->
is_list(Opts);
+opt({pool_size, N}) ->
+ is_integer(N) andalso 0 < N;
+
%% Options that we can't validate.
opt({K, _})
when K == transport_config;
diff --git a/lib/diameter/src/base/diameter_lib.erl b/lib/diameter/src/base/diameter_lib.erl
index 5b3a2063f8..23eba7e80c 100644
--- a/lib/diameter/src/base/diameter_lib.erl
+++ b/lib/diameter/src/base/diameter_lib.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -31,6 +31,8 @@
spawn_opts/2,
wait/1,
fold_tuple/3,
+ fold_n/3,
+ for_n/2,
log/4]).
%% ---------------------------------------------------------------------------
@@ -290,6 +292,35 @@ ft(Value, {Idx, T}) ->
setelement(Idx, T, Value).
%% ---------------------------------------------------------------------------
+%% # fold_n/3
+%% ---------------------------------------------------------------------------
+
+-spec fold_n(F, Acc0, N)
+ -> term()
+ when F :: fun((non_neg_integer(), term()) -> term()),
+ Acc0 :: term(),
+ N :: non_neg_integer().
+
+fold_n(F, Acc, N)
+ when is_integer(N), 0 < N ->
+ fold_n(F, F(N, Acc), N-1);
+
+fold_n(_, Acc, _) ->
+ Acc.
+
+%% ---------------------------------------------------------------------------
+%% # for_n/2
+%% ---------------------------------------------------------------------------
+
+-spec for_n(F, N)
+ -> non_neg_integer()
+ when F :: fun((non_neg_integer()) -> term()),
+ N :: non_neg_integer().
+
+for_n(F, N) ->
+ fold_n(fun(M,A) -> F(M), A+1 end, 0, N).
+
+%% ---------------------------------------------------------------------------
%% # log/4
%%
%% Called to have something to trace on for happenings of interest.
diff --git a/lib/diameter/src/base/diameter_service.erl b/lib/diameter/src/base/diameter_service.erl
index 76b05a2ad4..96897c71eb 100644
--- a/lib/diameter/src/base/diameter_service.erl
+++ b/lib/diameter/src/base/diameter_service.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -765,8 +765,9 @@ reason(failure) ->
start(Ref, {T, Opts}, S)
when T == connect;
T == listen ->
+ N = proplists:get_value(pool_size, Opts, 1),
try
- {ok, start(Ref, type(T), Opts, S)}
+ {ok, start(Ref, type(T), Opts, N, S)}
catch
?FAILURE(Reason) ->
{error, Reason}
@@ -784,11 +785,16 @@ type(connect = T) -> T.
%% start/4
-start(Ref, Type, Opts, #state{watchdogT = WatchdogT,
- peerT = PeerT,
- options = SvcOpts,
- service_name = SvcName,
- service = Svc0})
+start(Ref, Type, Opts, State) ->
+ start(Ref, Type, Opts, 1, State).
+
+%% start/5
+
+start(Ref, Type, Opts, N, #state{watchdogT = WatchdogT,
+ peerT = PeerT,
+ options = SvcOpts,
+ service_name = SvcName,
+ service = Svc0})
when Type == connect;
Type == accept ->
#diameter_service{applications = Apps}
@@ -796,14 +802,19 @@ start(Ref, Type, Opts, #state{watchdogT = WatchdogT,
= merge_service(Opts, Svc0),
{_,_} = Mask = proplists:get_value(sequence, SvcOpts),
RecvData = diameter_traffic:make_recvdata([SvcName, PeerT, Apps, Mask]),
- Pid = s(Type, Ref, {{spawn_opts([Opts, SvcOpts]), RecvData},
- Opts,
- SvcOpts,
- Svc}),
- insert(WatchdogT, #watchdog{pid = Pid,
- type = Type,
- ref = Ref,
- options = Opts}),
+ T = {{spawn_opts([Opts, SvcOpts]), RecvData}, Opts, SvcOpts, Svc},
+ Rec = #watchdog{type = Type,
+ ref = Ref,
+ options = Opts},
+ diameter_lib:fold_n(fun(_,A) ->
+ [wd(Type, Ref, T, WatchdogT, Rec) | A]
+ end,
+ [],
+ N).
+
+wd(Type, Ref, T, WatchdogT, Rec) ->
+ Pid = wd(Type, Ref, T),
+ insert(WatchdogT, Rec#watchdog{pid = Pid}),
Pid.
%% Note that the service record passed into the watchdog is the merged
@@ -816,7 +827,7 @@ spawn_opts(Optss) ->
T /= link,
T /= monitor].
-s(Type, Ref, T) ->
+wd(Type, Ref, T) ->
{_MRef, Pid} = diameter_watchdog:start({Type, Ref}, T),
Pid.
@@ -1718,31 +1729,43 @@ info_transport(S) ->
[],
PeerD).
-%% Only a config entry for a listening transport: use it.
-transport([[{type, listen}, _] = L]) ->
- L ++ [{accept, []}];
-
-%% Only one config or peer entry for a connecting transport: use it.
-transport([[{type, connect} | _] = L]) ->
- L;
+%% Single config entry. Distinguish between pool_size config or not on
+%% a connecting transport for backwards compatibility: with the option
+%% the form is similar to the listening case, with connections grouped
+%% in a pool tuple (for lack of a better name), without as before.
+transport([[{type, Type}, {options, Opts}] = L])
+ when Type == listen;
+ Type == connect ->
+ L ++ [{K, []} || [{_,K}] <- [keys(Type, Opts)]];
%% Peer entries: discard config. Note that the peer entries have
%% length at least 3.
transport([[_,_] | L]) ->
transport(L);
-%% Possibly many peer entries for a listening transport. Note that all
-%% have the same options by construction, which is not terribly space
-%% efficient.
-transport([[{type, accept}, {options, Opts} | _] | _] = Ls) ->
- [{type, listen},
+%% Multiple tranports. Note that all have the same options by
+%% construction, which is not terribly space efficient.
+transport([[{type, Type}, {options, Opts} | _] | _] = Ls) ->
+ transport(keys(Type, Opts), Ls).
+
+%% Group transports in an accept or pool tuple ...
+transport([{Type, Key}], [[{type, _}, {options, Opts} | _] | _] = Ls) ->
+ [{type, Type},
{options, Opts},
- {accept, [lists:nthtail(2,L) || L <- Ls]}].
+ {Key, [tl(tl(L)) || L <- Ls]}];
+
+%% ... or not: there can only be one.
+transport([], [L]) ->
+ L.
+
+keys(connect = T, Opts) ->
+ [{T, pool} || lists:keymember(pool_size, 1, Opts)];
+keys(_, _) ->
+ [{listen, accept}].
peer_dict(#state{watchdogT = WatchdogT, peerT = PeerT}, Dict0) ->
try ets:tab2list(WatchdogT) of
- L ->
- lists:foldl(fun(T,A) -> peer_acc(PeerT, A, T) end, Dict0, L)
+ L -> lists:foldl(fun(T,A) -> peer_acc(PeerT, A, T) end, Dict0, L)
catch
error: badarg -> Dict0 %% service has gone down
end.
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