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binbo_app.erl
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binbo_app.erl
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%% Copyright (c) 2019-2022, Sergei Semichev <chessvegas@chessvegas.com>. 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(binbo_app).
-behaviour(application).
-export([start/2]).
-export([stop/1]).
%%%------------------------------------------------------------------------------
%%% Types
%%%------------------------------------------------------------------------------
-record(app_state, {
attack_mods = undefined :: undefined | [module()],
hash_mods = undefined :: undefined | [module()]
}).
-type state() :: #app_state{}.
%%%------------------------------------------------------------------------------
%%% API
%%%------------------------------------------------------------------------------
%% start/2
-spec start(_, _) -> {ok, pid(), state()}.
start(_Type, _Args) ->
AttackMods = binbo_attacks:init(), % init persistent attacks first
HashMods = binbo_hash:init(),
State = #app_state{attack_mods = AttackMods, hash_mods = HashMods},
{ok, Pid} = binbo_sup:start_link(),
{ok, Pid, State}.
%% stop/1
-spec stop(state()) -> ok.
stop(#app_state{attack_mods = AttackMods, hash_mods = HashMods}) ->
ok = unload_dynamic_mods(AttackMods),
ok = unload_dynamic_mods(HashMods),
ok.
%%%------------------------------------------------------------------------------
%%% Internal functions
%%%------------------------------------------------------------------------------
%% unload_dynamic_mods/1
-spec unload_dynamic_mods(undefined | [module()]) -> ok.
unload_dynamic_mods([_|_] = DynMods) ->
lists:foreach(fun(Mod) ->
binbo_global:delete(Mod)
end, DynMods);
unload_dynamic_mods(_) ->
ok.