67 lines
2.4 KiB
Erlang
67 lines
2.4 KiB
Erlang
%%--------------------------------------------------------------------
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%% Copyright (c) 2021-2022 EMQ Technologies Co., Ltd. All Rights Reserved.
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%%
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%% Licensed under the Apache License, Version 2.0 (the "License");
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%% you may not use this file except in compliance with the License.
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%% You may obtain a copy of the License at
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%%
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%% http://www.apache.org/licenses/LICENSE-2.0
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%%
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%% Unless required by applicable law or agreed to in writing, software
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%% distributed under the License is distributed on an "AS IS" BASIS,
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%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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%% See the License for the specific language governing permissions and
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%% limitations under the License.
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%%--------------------------------------------------------------------
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-module(emqx_plugin_libs_pool).
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-export([ start_pool/3
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, stop_pool/1
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, pool_name/1
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, health_check/3
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]).
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-include_lib("emqx/include/logger.hrl").
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pool_name(ID) when is_binary(ID) ->
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list_to_atom(binary_to_list(ID)).
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start_pool(Name, Mod, Options) ->
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case ecpool:start_sup_pool(Name, Mod, Options) of
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{ok, _} ->
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?SLOG(info, #{msg => "start_ecpool_ok", pool_name => Name}),
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ok;
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{error, {already_started, _Pid}} ->
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stop_pool(Name),
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start_pool(Name, Mod, Options);
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{error, Reason} ->
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?SLOG(error, #{msg => "start_ecpool_error", pool_name => Name,
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reason => Reason}),
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{error, {start_pool_failed, Name, Reason}}
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end.
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stop_pool(Name) ->
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case ecpool:stop_sup_pool(Name) of
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ok ->
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?SLOG(info, #{msg => "stop_ecpool_ok", pool_name => Name});
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{error, not_found} ->
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ok;
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{error, Reason} ->
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?SLOG(error, #{msg => "stop_ecpool_failed", pool_name => Name,
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reason => Reason}),
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error({stop_pool_failed, Name, Reason})
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end.
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health_check(PoolName, CheckFunc, State) when is_function(CheckFunc) ->
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Status = [begin
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case ecpool_worker:client(Worker) of
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{ok, Conn} -> CheckFunc(Conn);
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_ -> false
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end
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end || {_WorkerName, Worker} <- ecpool:workers(PoolName)],
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case length(Status) > 0 andalso lists:all(fun(St) -> St =:= true end, Status) of
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true -> {ok, State};
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false -> {error, health_check_failed, State}
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end.
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