ecpool

%%%-----------------------------------------------------------------------------
%%% Copyright (c) 2015-2016 Feng Lee <feng@emqtt.io>.
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%%%-----------------------------------------------------------------------------
%%% @doc ecpool worker supervisor.
%%%
%%% @author Feng Lee <feng@emqtt.io>
%%%-----------------------------------------------------------------------------

-module(ecpool_worker_sup).

-behaviour(supervisor).

-export([start_link/3, init/1]).

start_link(Pool, Mod, Opts) when is_atom(Pool) ->
    supervisor:start_link(?MODULE, [Pool, Mod, Opts]).

init([Pool, Mod, Opts]) ->
    WorkerSpec = fun(Id) ->
        {{worker, Id}, {ecpool_worker, start_link, [Pool, Id, Mod, Opts]},
            transient, 5000, worker, [ecpool_worker, Mod]}
    end,
    Workers = [WorkerSpec(I) || I <- lists:seq(1, pool_size(Opts))],
    {ok, { {one_for_one, 10, 60}, Workers} }.

pool_size(Opts) ->
    Schedulers = erlang:system_info(schedulers),
    proplists:get_value(pool_size, Opts, Schedulers).