quicer_conn_acceptor_sup.erl

%%--------------------------------------------------------------------
%% Copyright (c) 2020 EMQ Technologies Co., Ltd. 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.
%%--------------------------------------------------------------------
-module(quicer_conn_acceptor_sup).

-behaviour(supervisor).

%% API
-export([start_link/2]).

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

-define(SERVER, ?MODULE).

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

%%--------------------------------------------------------------------
%% @doc
%% Starts the supervisor
%% @end
%%--------------------------------------------------------------------
-spec start_link(ListenerH :: quicer:listener_handler(),
                 ConnOpts::map()) -> {ok, Pid :: pid()} |
          {error, {already_started, Pid :: pid()}} |
          {error, {shutdown, term()}} |
          {error, term()} |
          ignore.
start_link(ListenerH, ConnOpts) ->
    supervisor:start_link(?MODULE, [ListenerH, ConnOpts]).

%%%===================================================================
%%% 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 intensity, and child
%% specifications.
%% @end
%%--------------------------------------------------------------------
-spec init(Args :: term()) ->
          {ok, {SupFlags :: supervisor:sup_flags(),
                [ChildSpec :: supervisor:child_spec()]}} |
          ignore.
init([ListenerH, Opts]) ->
    SupFlags = #{strategy => simple_one_for_one,
                 intensity => 1,
                 period => 5},

    OneChild = #{id => ignored,
                 start => {quicer_conn_acceptor, start_link,
                           [ListenerH, Opts]},
                 restart => temporary,
                 shutdown => 5000,
                 type => worker
                } ,

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

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