%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2000-2009. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%
%%-----------------------------------------------------------------
%% Purpose: Supervisor
%%-----------------------------------------------------------------
-module(megaco_tcp_sup).
-behaviour(supervisor).
%%-----------------------------------------------------------------
%% Include files
%%-----------------------------------------------------------------
%%-----------------------------------------------------------------
%% External exports
%%-----------------------------------------------------------------
-export([
start_link/0,
which_accept_sup/1,
which_connection_sup/1,
start_accept_child/2
]).
%%-----------------------------------------------------------------
%% Internal exports
%%-----------------------------------------------------------------
-export([
init/1,
terminate/2
]).
%%-----------------------------------------------------------------
%% External interface functions
%%-----------------------------------------------------------------
%%-----------------------------------------------------------------
%% Func: start_link/1
%% Description: Start an megaco net element supervisor
%%-----------------------------------------------------------------
start_link() ->
supervisor:start_link(?MODULE, []).
%%-----------------------------------------------------------------
%% Func: which_accept_sup/1
%% Description: Get the pid() of the accept supervisor process
%%-----------------------------------------------------------------
which_accept_sup(Pid) ->
which_child(Pid, megaco_tcp_accept_sup).
%%-----------------------------------------------------------------
%% Func: which_connection_sup/1
%% Description: Get the pid() of the connection supervisor process
%%-----------------------------------------------------------------
which_connection_sup(Pid) ->
which_child(Pid, megaco_tcp_connection_sup).
%%-----------------------------------------------------------------
%% Func: start_accept_child/1
%% Description: Starts the process that keeps track of the TCP
%% accept processes
%%-----------------------------------------------------------------
start_accept_child(SupPid, Data) ->
case supervisor:start_child(SupPid,
{megaco_tcp_accept,
{megaco_tcp_accept, start_link, [Data]},
temporary, 10000, worker,
[megaco_tcp_accept]}) of
{ok, ChildPid} ->
ChildPid;
{error, Reason} ->
{error, Reason}
end.
%%-----------------------------------------------------------------
%% Internal interface functions
%%-----------------------------------------------------------------
%%-----------------------------------------------------------------
%% Server functions
%%-----------------------------------------------------------------
%%-----------------------------------------------------------------
%% Func: init/1
%% Description: Init funcion for the supervisor
%%-----------------------------------------------------------------
init([]) ->
SupFlags = {one_for_one, 5, 1000}, % Max 5 restarts in 1 second
ChildSpec = [sup_spec(megaco_tcp_accept_sup, []),
sup_spec(megaco_tcp_connection_sup,[]),
worker_spec(megaco_tcp, [{self(), []}], [gen_server])],
{ok, {SupFlags, ChildSpec}}.
%%-----------------------------------------------------------------
%% Func: terminate/2
%% Description: Termination function for the supervisor
%%-----------------------------------------------------------------
terminate(_Reason, _State) ->
ok.
%%-----------------------------------------------------------------
%% Local functions
%%-----------------------------------------------------------------
which_child(Pid, Name) ->
ProcList = supervisor:which_children(Pid),
%% ProcList of type [{Name, Pid, Type, Modules}]
case lists:keysearch(Name, 1, ProcList) of
{value, {_Name, ChildPid, _Type, _Modules}} ->
{ok, ChildPid};
false ->
{error, no_such_process}
end.
sup_spec(Name, Args) ->
{Name,
{Name, start_link, Args},
permanent, 10000, supervisor, [Name, supervisor]}.
worker_spec(Name, Args, Mods) ->
{Name, {Name, start_link, Args},
permanent, 10000, worker, [Name] ++ Mods}.
