ecallmgr_amqp_pool_worker_sup.erl

%%%-------------------------------------------------------------------
%%% @author James Aimonetti <james@2600hz.org>
%%% @copyright (C) 2011, VoIP INC
%%% @doc
%%% Start and stop worker processes
%%% @end
%%% Created : 19 Sep 2011 by James Aimonetti <james@2600hz.org>
%%%-------------------------------------------------------------------
-module(ecallmgr_amqp_pool_worker_sup).

-behaviour(supervisor).

%% API
-export([start_link/0, start_child/0, worker_count/0, release_all/0]).

%% Supervisor callbacks
-export([init/1]).

-define(SERVER, ?MODULE).

%%%===================================================================
%%% API functions
%%%===================================================================

%%--------------------------------------------------------------------
%% @doc
%% Starts the supervisor
%%
%% @spec start_link() -> {ok, Pid} | ignore | {error, Error}
%% @end
%%--------------------------------------------------------------------
start_link() ->
    supervisor:start_link({local, ?SERVER}, ?MODULE, []).

start_child() ->
    supervisor:start_child(?SERVER, []).

-spec worker_count/0 :: () -> non_neg_integer().
worker_count() ->
    Info = supervisor:count_children(?SERVER),
    props:get_value(workers, Info).

-spec release_all/0 :: () -> 'ok'.
release_all() ->
    _ = [ ecallmgr_amqp_pool_worker:stop(P) || {_, P, _, _} <- supervisor:which_children(?SERVER)],
    ok.

%%%===================================================================
%%% Supervisor callbacks
%%%===================================================================

%%--------------------------------------------------------------------
%% @private
%% @doc
%% Whenever a supervisor is started using supervisor:start_link/[2,3],
%% this function is called by the new process to find out about
%% restart strategy, maximum restart frequency and child
%% specifications.
%%
%% @spec init(Args) -> {ok, {SupFlags, [ChildSpec]}} |
%%                     ignore |
%%                     {error, Reason}
%% @end
%%--------------------------------------------------------------------
init([]) ->
    RestartStrategy = simple_one_for_one,
    MaxRestarts = 1,
    MaxSecondsBetweenRestarts = 3,

    SupFlags = {RestartStrategy, MaxRestarts, MaxSecondsBetweenRestarts},

    Restart = temporary,
    Shutdown = 2000,
    Type = worker,

    AChild = {ecallmgr_amqp_pool_worker, {ecallmgr_amqp_pool_worker, start_link, []},
	      Restart, Shutdown, Type, [ecallmgr_amqp_pool_worker]},

    {ok, {SupFlags, [AChild]}}.

%%%===================================================================
%%% Internal functions
%%%===================================================================