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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2004-2016. 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%
%%
-module(snmpm_supervisor).
-behaviour(supervisor).
%% External exports
-export([start_link/2, stop/0]).
%% supervisor callbacks
-export([init/1]).
-define(SERVER, ?MODULE).
-include("snmp_debug.hrl").
%%%-------------------------------------------------------------------
%%% API
%%%-------------------------------------------------------------------
start_link(Type, Opts) ->
?d("start_link -> entry with"
"~n Opts: ~p", [Opts]),
SupName = {local, ?MODULE},
supervisor:start_link(SupName, ?MODULE, [Type, Opts]).
stop() ->
?d("stop -> entry", []),
case whereis(?SERVER) of
Pid when is_pid(Pid) ->
?d("stop -> Pid: ~p", [Pid]),
exit(Pid, shutdown),
?d("stop -> stopped", []),
ok;
_ ->
?d("stop -> not running", []),
not_running
end.
%%%-------------------------------------------------------------------
%%% Callback functions from supervisor
%%%-------------------------------------------------------------------
%%--------------------------------------------------------------------
%% Func: init/1
%% Returns: {ok, {SupFlags, [ChildSpec]}} |
%% ignore |
%% {error, Reason}
%%--------------------------------------------------------------------
init([Opts]) when is_list(Opts) -> %% OTP-5963: Due to the addition
init([normal, Opts]); %% OTP-5963: of server_sup
init([Type, Opts]) ->
?d("init -> entry with"
"~n Type: ~p"
"~n Opts: ~p", [Type, Opts]),
Restart = get_restart(Opts),
Flags = {one_for_all, 0, 3600},
Config = worker_spec(snmpm_config, [Opts], Restart, [gen_server]),
MiscSup = sup_spec(snmpm_misc_sup, [], Restart),
ServerSup = sup_spec(snmpm_server_sup, [Type, Opts], Restart),
Sups = [Config, MiscSup, ServerSup],
{ok, {Flags, Sups}}.
%%%-------------------------------------------------------------------
%%% Internal functions
%%%-------------------------------------------------------------------
get_restart(Opts) ->
get_opt(Opts, restart_type, transient).
get_opt(Opts, Key, Def) ->
snmp_misc:get_option(Key, Opts, Def).
sup_spec(Name, Args, Restart) ->
?d("sup_spec -> entry with"
"~n Name: ~p"
"~n Args: ~p"
"~n Restart: ~p", [Name, Args, Restart]),
{Name,
{Name, start_link, Args},
Restart, 2000, supervisor, [Name,supervisor]}.
worker_spec(Name, Args, Restart, Modules) ->
?d("worker_spec -> entry with"
"~n Name: ~p"
"~n Args: ~p"
"~n Restart: ~p"
"~n Modules: ~p", [Name, Args, Restart, Modules]),
{Name,
{Name, start_link, Args},
Restart, 2000, worker, [Name] ++ Modules}.
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