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-rw-r--r--lib/kernel/src/disk_log_server.erl20
1 files changed, 15 insertions, 5 deletions
diff --git a/lib/kernel/src/disk_log_server.erl b/lib/kernel/src/disk_log_server.erl
index 8894ed87e8..684ea5b5db 100644
--- a/lib/kernel/src/disk_log_server.erl
+++ b/lib/kernel/src/disk_log_server.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2013. 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
@@ -83,8 +83,8 @@ accessible_logs() ->
init([]) ->
process_flag(trap_exit, true),
- ets:new(?DISK_LOG_NAME_TABLE, [named_table, set]),
- ets:new(?DISK_LOG_PID_TABLE, [named_table, set]),
+ _ = ets:new(?DISK_LOG_NAME_TABLE, [named_table, set]),
+ _= ets:new(?DISK_LOG_PID_TABLE, [named_table, set]),
{ok, #state{}}.
handle_call({open, W, A}, From, State) ->
@@ -159,15 +159,25 @@ ensure_started() ->
undefined ->
LogSup = {disk_log_sup, {disk_log_sup, start_link, []}, permanent,
1000, supervisor, [disk_log_sup]},
- supervisor:start_child(kernel_safe_sup, LogSup),
+ {ok, _} = ensure_child_started(kernel_safe_sup, LogSup),
LogServer = {disk_log_server,
{disk_log_server, start_link, []},
permanent, 2000, worker, [disk_log_server]},
- supervisor:start_child(kernel_safe_sup, LogServer),
+ {ok, _} = ensure_child_started(kernel_safe_sup, LogServer),
ok;
_ -> ok
end.
+ensure_child_started(Sup,Child) ->
+ case supervisor:start_child(Sup, Child) of
+ {ok,Pid} ->
+ {ok,Pid};
+ {error,{already_started,Pid}} ->
+ {ok,Pid};
+ Error ->
+ Error
+ end.
+
open([{Req, From} | L], State) ->
State2 = case do_open(Req, From, State) of
{pending, State1} ->