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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1997-2009. 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
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% 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.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+-module(mnesia_kernel_sup).
+
+-behaviour(supervisor).
+
+-export([start/0, init/1, supervisor_timeout/1]).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% top supervisor callback functions
+
+start() ->
+ supervisor:start_link({local, mnesia_kernel_sup}, ?MODULE, []).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% sub supervisor callback functions
+
+init([]) ->
+ ProcLib = [mnesia_monitor, proc_lib],
+ Flags = {one_for_all, 0, timer:hours(24)}, % Trust the top supervisor
+ Workers = [worker_spec(mnesia_monitor, timer:seconds(3), [gen_server]),
+ worker_spec(mnesia_subscr, timer:seconds(3), [gen_server]),
+ worker_spec(mnesia_locker, timer:seconds(3), ProcLib),
+ worker_spec(mnesia_recover, timer:minutes(3), [gen_server]),
+ worker_spec(mnesia_tm, timer:seconds(30), ProcLib),
+ supervisor_spec(mnesia_checkpoint_sup),
+ supervisor_spec(mnesia_snmp_sup),
+ worker_spec(mnesia_controller, timer:seconds(3), [gen_server]),
+ worker_spec(mnesia_late_loader, timer:seconds(3), ProcLib)
+ ],
+ {ok, {Flags, Workers}}.
+
+worker_spec(Name, KillAfter, Modules) ->
+ KA = supervisor_timeout(KillAfter),
+ {Name, {Name, start, []}, permanent, KA, worker, [Name] ++ Modules}.
+
+supervisor_spec(Name) ->
+ {Name, {Name, start, []}, permanent, infinity, supervisor,
+ [Name, supervisor]}.
+
+-ifdef(debug_shutdown).
+supervisor_timeout(_KillAfter) -> timer:hours(24).
+-else.
+supervisor_timeout(KillAfter) -> KillAfter.
+-endif.
+
+