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authorAnders Svensson <[email protected]>2015-01-19 11:45:40 +0100
committerAnders Svensson <[email protected]>2015-01-19 14:18:43 +0100
commit65153795869eda29ccd1bb0d3b5c14e390681f4f (patch)
treeb023cec3aaeadd1fbf67bd1efc6b16d2b7a6d3f3
parentaf87b1c3d4897840d8247589a88d3611106ecedc (diff)
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Monitor more efficiently at shutdown
There's no need for building a pid list only to map it to a list of monitor references. Also, monitoring before banging the shutdown message makes for better trace, avoiding unnecessary noproc reasons when the process dies before the monitor is created.
-rw-r--r--lib/diameter/src/base/diameter_lib.erl18
-rw-r--r--lib/diameter/src/base/diameter_service.erl5
2 files changed, 13 insertions, 10 deletions
diff --git a/lib/diameter/src/base/diameter_lib.erl b/lib/diameter/src/base/diameter_lib.erl
index 5b3a2063f8..b5f1ae3937 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
@@ -247,17 +247,19 @@ opts(HeapSize, Opts) ->
%% # wait/1
%% ---------------------------------------------------------------------------
--spec wait([pid()])
+-spec wait([pid() | reference()])
-> ok.
wait(L) ->
- down([erlang:monitor(process, P) || P <- L]).
+ lists:foreach(fun down/1, L).
-down([]) ->
- ok;
-down([MRef|T]) ->
- receive {'DOWN', MRef, process, _, _} -> ok end,
- down(T).
+down(Pid)
+ when is_pid(Pid) ->
+ down(monitor(process, Pid));
+
+down(MRef)
+ when is_reference(MRef) ->
+ receive {'DOWN', MRef, process, _, _} = T -> T end.
%% ---------------------------------------------------------------------------
%% # fold_tuple/3
diff --git a/lib/diameter/src/base/diameter_service.erl b/lib/diameter/src/base/diameter_service.erl
index 76b05a2ad4..f4afa6eb94 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
@@ -610,8 +610,9 @@ st(#watchdog{ref = Ref, pid = Pid}, Refs) ->
%% st/3
st(#watchdog{pid = Pid}, Reason, Acc) ->
+ MRef = monitor(process, Pid),
Pid ! {shutdown, self(), Reason},
- [Pid | Acc].
+ [MRef | Acc].
%% ---------------------------------------------------------------------------
%% # call_service/2