emqx4.3/apps/emqx_modules/src/emqx_modules_sup.erl

%%--------------------------------------------------------------------
%% Copyright (c) 2020-2023 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(emqx_modules_sup).

-behaviour(supervisor).

-export([start_link/0]).

-export([init/1]).

%% Helper macro for declaring children of supervisor
-define(CHILD(Mod), #{
    id => Mod,
    start => {Mod, start_link, []},
    restart => permanent,
    shutdown => 5000,
    type => worker,
    modules => [Mod]
}).

start_link() ->
    supervisor:start_link({local, ?MODULE}, ?MODULE, []).

%%--------------------------------------------------------------------
%% Supervisor callbacks
%%--------------------------------------------------------------------
init([]) ->
    {ok,
        {{one_for_one, 10, 3600}, [
            ?CHILD(emqx_topic_metrics),
            ?CHILD(emqx_trace),
            ?CHILD(emqx_delayed)
        ]}}.