fix(gw-exproto): fix diaylzer warnings
This commit is contained in:
JianBo He
parent
5f47ceb118
commit
fd828ad216
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@ -100,11 +100,11 @@
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%%--------------------------------------------------------------------
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%% @doc Get infos of the channel.
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-spec(info(channel()) -> emqx_types:infos()).
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-spec info(channel()) -> emqx_types:infos().
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info(Channel) ->
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maps:from_list(info(?INFO_KEYS, Channel)).
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-spec(info(list(atom())|atom(), channel()) -> term()).
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-spec info(list(atom())|atom(), channel()) -> term().
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info(Keys, Channel) when is_list(Keys) ->
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[{Key, info(Key, Channel)} || Key <- Keys];
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info(conninfo, #channel{conninfo = ConnInfo}) ->
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@ -127,7 +127,7 @@ info(will_msg, _) ->
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info(ctx, #channel{ctx = Ctx}) ->
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Ctx.
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-spec(stats(channel()) -> emqx_types:stats()).
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-spec stats(channel()) -> emqx_types:stats().
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stats(#channel{subscriptions = Subs}) ->
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[{subscriptions_cnt, maps:size(Subs)},
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{subscriptions_max, 0},
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@ -144,7 +144,7 @@ stats(#channel{subscriptions = Subs}) ->
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%% Init the channel
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%%--------------------------------------------------------------------
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-spec(init(emqx_exproto_types:conninfo(), proplists:proplist()) -> channel()).
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-spec init(emqx_exproto_types:conninfo(), map()) -> channel().
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init(ConnInfo = #{socktype := Socktype,
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peername := Peername,
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sockname := Sockname,
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@ -201,16 +201,16 @@ address({Host, Port}) ->
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%% Handle incoming packet
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%%--------------------------------------------------------------------
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-spec(handle_in(binary(), channel())
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-spec handle_in(binary(), channel())
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-> {ok, channel()}
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| {shutdown, Reason :: term(), channel()}).
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| {shutdown, Reason :: term(), channel()}.
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handle_in(Data, Channel) ->
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Req = #{bytes => Data},
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{ok, try_dispatch(on_received_bytes, wrap(Req), Channel)}.
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-spec(handle_deliver(list(emqx_types:deliver()), channel())
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-spec handle_deliver(list(emqx_types:deliver()), channel())
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-> {ok, channel()}
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| {shutdown, Reason :: term(), channel()}).
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| {shutdown, Reason :: term(), channel()}.
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handle_deliver(Delivers, Channel = #channel{ctx = Ctx,
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clientinfo = ClientInfo}) ->
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%% XXX: ?? Nack delivers from shared subscriptions
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@ -233,9 +233,9 @@ handle_deliver(Delivers, Channel = #channel{ctx = Ctx,
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Req = #{messages => Msgs},
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{ok, try_dispatch(on_received_messages, wrap(Req), Channel)}.
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-spec(handle_timeout(reference(), Msg :: term(), channel())
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-spec handle_timeout(reference(), Msg :: term(), channel())
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-> {ok, channel()}
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| {shutdown, Reason :: term(), channel()}).
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| {shutdown, Reason :: term(), channel()}.
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handle_timeout(_TRef, {keepalive, _StatVal},
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Channel = #channel{keepalive = undefined}) ->
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{ok, Channel};
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@ -257,10 +257,10 @@ handle_timeout(_TRef, Msg, Channel) ->
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?WARN("Unexpected timeout: ~p", [Msg]),
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{ok, Channel}.
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-spec(handle_call(any(), channel())
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-> {reply, Reply :: term(), channel()}
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| {reply, Reply :: term(), replies(), channel()}
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| {shutdown, Reason :: term(), Reply :: term(), channel()}).
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-spec handle_call(any(), channel())
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-> {reply, Reply :: term(), channel()}
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| {reply, Reply :: term(), replies(), channel()}
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| {shutdown, Reason :: term(), Reply :: term(), channel()}.
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handle_call({send, Data}, Channel) ->
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{reply, ok, [{outgoing, Data}], Channel};
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@ -355,17 +355,17 @@ handle_call(Req, Channel) ->
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?LOG(warning, "Unexpected call: ~p", [Req]),
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{reply, {error, unexpected_call}, Channel}.
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-spec(handle_cast(any(), channel())
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-> {ok, channel()}
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| {ok, replies(), channel()}
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| {shutdown, Reason :: term(), channel()}).
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-spec handle_cast(any(), channel())
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-> {ok, channel()}
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| {ok, replies(), channel()}
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| {shutdown, Reason :: term(), channel()}.
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handle_cast(Req, Channel) ->
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?WARN("Unexpected call: ~p", [Req]),
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{ok, Channel}.
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-spec(handle_info(any(), channel())
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-> {ok, channel()}
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| {shutdown, Reason :: term(), channel()}).
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-spec handle_info(any(), channel())
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-> {ok, channel()}
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| {shutdown, Reason :: term(), channel()}.
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handle_info({subscribe, TopicFilters}, Channel) ->
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do_subscribe(TopicFilters, Channel);
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@ -401,7 +401,7 @@ handle_info(Info, Channel) ->
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?LOG(warning, "Unexpected info: ~p", [Info]),
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{ok, Channel}.
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-spec(terminate(any(), channel()) -> channel()).
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-spec terminate(any(), channel()) -> channel().
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terminate(Reason, Channel) ->
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Req = #{reason => stringfy(Reason)},
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try_dispatch(on_socket_closed, wrap(Req), Channel).
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@ -1,700 +0,0 @@
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%%--------------------------------------------------------------------
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%% Copyright (c) 2020-2021 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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%% TCP/TLS/UDP/DTLS Connection
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-module(emqx_exproto_conn).
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-include_lib("emqx/include/types.hrl").
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-include_lib("emqx/include/logger.hrl").
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-logger_header("[ExProto Conn]").
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%% API
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-export([ start_link/3
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, stop/1
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]).
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-export([ info/1
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, stats/1
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]).
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-export([ call/2
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, call/3
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, cast/2
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]).
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%% Callback
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-export([init/4]).
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%% Sys callbacks
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-export([ system_continue/3
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, system_terminate/4
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, system_code_change/4
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, system_get_state/1
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]).
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%% Internal callback
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-export([wakeup_from_hib/2]).
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-import(emqx_misc, [start_timer/2]).
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-record(state, {
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%% TCP/SSL/UDP/DTLS Wrapped Socket
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socket :: {esockd_transport, esockd:socket()} | {udp, _, _},
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%% Peername of the connection
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peername :: emqx_types:peername(),
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%% Sockname of the connection
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sockname :: emqx_types:peername(),
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%% Sock State
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sockstate :: emqx_types:sockstate(),
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%% The {active, N} option
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active_n :: pos_integer(),
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%% BACKW: e4.2.0-e4.2.1
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%% We should remove it
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sendfun :: function() | undefined,
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%% Limiter
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limiter :: maybe(emqx_limiter:limiter()),
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%% Limit Timer
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limit_timer :: maybe(reference()),
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%% Channel State
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channel :: emqx_exproto_channel:channel(),
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%% GC State
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gc_state :: maybe(emqx_gc:gc_state()),
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%% Stats Timer
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stats_timer :: disabled | maybe(reference()),
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%% Idle Timeout
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idle_timeout :: integer(),
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%% Idle Timer
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idle_timer :: maybe(reference())
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}).
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-type(state() :: #state{}).
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-define(ACTIVE_N, 100).
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-define(INFO_KEYS, [socktype, peername, sockname, sockstate, active_n]).
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-define(CONN_STATS, [recv_pkt, recv_msg, send_pkt, send_msg]).
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-define(SOCK_STATS, [recv_oct, recv_cnt, send_oct, send_cnt, send_pend]).
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-define(ENABLED(X), (X =/= undefined)).
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-dialyzer({nowarn_function,
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[ system_terminate/4
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, handle_call/3
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, handle_msg/2
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, shutdown/3
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, stop/3
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]}).
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%% udp
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start_link(Socket = {udp, _SockPid, _Sock}, Peername, Options) ->
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Args = [self(), Socket, Peername, Options],
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{ok, proc_lib:spawn_link(?MODULE, init, Args)};
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%% tcp/ssl/dtls
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start_link(esockd_transport, Sock, Options) ->
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Socket = {esockd_transport, Sock},
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Args = [self(), Socket, undefined, Options],
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{ok, proc_lib:spawn_link(?MODULE, init, Args)}.
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%%--------------------------------------------------------------------
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%% API
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%%--------------------------------------------------------------------
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%% @doc Get infos of the connection/channel.
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-spec(info(pid()|state()) -> emqx_types:infos()).
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info(CPid) when is_pid(CPid) ->
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call(CPid, info);
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info(State = #state{channel = Channel}) ->
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ChanInfo = emqx_exproto_channel:info(Channel),
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SockInfo = maps:from_list(
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info(?INFO_KEYS, State)),
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ChanInfo#{sockinfo => SockInfo}.
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info(Keys, State) when is_list(Keys) ->
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[{Key, info(Key, State)} || Key <- Keys];
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info(socktype, #state{socket = Socket}) ->
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esockd_type(Socket);
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info(peername, #state{peername = Peername}) ->
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Peername;
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info(sockname, #state{sockname = Sockname}) ->
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Sockname;
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info(sockstate, #state{sockstate = SockSt}) ->
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SockSt;
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info(active_n, #state{active_n = ActiveN}) ->
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ActiveN.
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-spec(stats(pid()|state()) -> emqx_types:stats()).
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stats(CPid) when is_pid(CPid) ->
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call(CPid, stats);
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stats(#state{socket = Socket,
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channel = Channel}) ->
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SockStats = case esockd_getstat(Socket, ?SOCK_STATS) of
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{ok, Ss} -> Ss;
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{error, _} -> []
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end,
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ConnStats = emqx_pd:get_counters(?CONN_STATS),
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ChanStats = emqx_exproto_channel:stats(Channel),
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ProcStats = emqx_misc:proc_stats(),
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lists:append([SockStats, ConnStats, ChanStats, ProcStats]).
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call(Pid, Req) ->
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call(Pid, Req, infinity).
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call(Pid, Req, Timeout) ->
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gen_server:call(Pid, Req, Timeout).
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cast(Pid, Req) ->
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gen_server:cast(Pid, Req).
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stop(Pid) ->
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gen_server:stop(Pid).
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%%--------------------------------------------------------------------
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%% Wrapped funcs
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%%--------------------------------------------------------------------
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esockd_peername({udp, _SockPid, _Sock}, Peername) ->
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Peername;
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esockd_peername({esockd_transport, Sock}, _Peername) ->
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{ok, Peername} = esockd_transport:ensure_ok_or_exit(peername, [Sock]),
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Peername.
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esockd_wait(Socket = {udp, _SockPid, _Sock}) ->
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{ok, Socket};
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esockd_wait({esockd_transport, Sock}) ->
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case esockd_transport:wait(Sock) of
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{ok, NSock} -> {ok, {esockd_transport, NSock}};
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R = {error, _} -> R
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end.
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esockd_close({udp, _SockPid, _Sock}) ->
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%% nothing to do for udp socket
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%%gen_udp:close(Sock);
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ok;
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esockd_close({esockd_transport, Sock}) ->
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esockd_transport:fast_close(Sock).
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esockd_ensure_ok_or_exit(peercert, {udp, _SockPid, _Sock}) ->
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nossl;
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esockd_ensure_ok_or_exit(Fun, {udp, _SockPid, Sock}) ->
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esockd_transport:ensure_ok_or_exit(Fun, [Sock]);
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esockd_ensure_ok_or_exit(Fun, {esockd_transport, Socket}) ->
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esockd_transport:ensure_ok_or_exit(Fun, [Socket]).
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esockd_type({udp, _, _}) ->
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udp;
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esockd_type({esockd_transport, Socket}) ->
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esockd_transport:type(Socket).
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esockd_setopts({udp, _, _}, _) ->
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ok;
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esockd_setopts({esockd_transport, Socket}, Opts) ->
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%% FIXME: DTLS works??
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esockd_transport:setopts(Socket, Opts).
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esockd_getstat({udp, _SockPid, Sock}, Stats) ->
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inet:getstat(Sock, Stats);
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esockd_getstat({esockd_transport, Sock}, Stats) ->
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esockd_transport:getstat(Sock, Stats).
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send(Data, #state{socket = {udp, _SockPid, Sock}, peername = {Ip, Port}}) ->
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gen_udp:send(Sock, Ip, Port, Data);
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send(Data, #state{socket = {esockd_transport, Sock}}) ->
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esockd_transport:async_send(Sock, Data).
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%%--------------------------------------------------------------------
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%% callbacks
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%%--------------------------------------------------------------------
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-define(DEFAULT_GC_OPTS, #{count => 1000, bytes => 1024*1024}).
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-define(DEFAULT_IDLE_TIMEOUT, 30000).
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-define(DEFAULT_OOM_POLICY, #{enable => true, max_heap_size => 4194304,
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max_message_queue_len => 32000}).
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init(Parent, WrappedSock, Peername0, Options) ->
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case esockd_wait(WrappedSock) of
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{ok, NWrappedSock} ->
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Peername = esockd_peername(NWrappedSock, Peername0),
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run_loop(Parent, init_state(NWrappedSock, Peername, Options));
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{error, Reason} ->
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ok = esockd_close(WrappedSock),
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exit_on_sock_error(Reason)
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end.
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init_state(WrappedSock, Peername, Options) ->
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{ok, Sockname} = esockd_ensure_ok_or_exit(sockname, WrappedSock),
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Peercert = esockd_ensure_ok_or_exit(peercert, WrappedSock),
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ConnInfo = #{socktype => esockd_type(WrappedSock),
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peername => Peername,
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sockname => Sockname,
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peercert => Peercert,
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conn_mod => ?MODULE
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},
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ActiveN = proplists:get_value(active_n, Options, ?ACTIVE_N),
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%% FIXME:
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%%Limiter = emqx_limiter:init(Options),
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Channel = emqx_exproto_channel:init(ConnInfo, Options),
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GcState = emqx_gc:init(?DEFAULT_GC_OPTS),
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IdleTimeout = proplists:get_value(idle_timeout, Options, ?DEFAULT_IDLE_TIMEOUT),
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IdleTimer = start_timer(IdleTimeout, idle_timeout),
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#state{socket = WrappedSock,
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peername = Peername,
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sockname = Sockname,
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sockstate = idle,
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active_n = ActiveN,
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sendfun = undefined,
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limiter = undefined,
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channel = Channel,
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gc_state = GcState,
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stats_timer = undefined,
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idle_timeout = IdleTimeout,
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idle_timer = IdleTimer
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}.
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run_loop(Parent, State = #state{socket = Socket,
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peername = Peername}) ->
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emqx_logger:set_metadata_peername(esockd:format(Peername)),
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_ = emqx_misc:tune_heap_size(?DEFAULT_OOM_POLICY),
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case activate_socket(State) of
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{ok, NState} ->
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hibernate(Parent, NState);
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{error, Reason} ->
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ok = esockd_close(Socket),
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exit_on_sock_error(Reason)
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end.
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-spec exit_on_sock_error(atom()) -> no_return().
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exit_on_sock_error(Reason) when Reason =:= einval;
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Reason =:= enotconn;
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Reason =:= closed ->
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erlang:exit(normal);
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exit_on_sock_error(timeout) ->
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erlang:exit({shutdown, ssl_upgrade_timeout});
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exit_on_sock_error(Reason) ->
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erlang:exit({shutdown, Reason}).
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%%--------------------------------------------------------------------
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%% Recv Loop
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recvloop(Parent, State = #state{idle_timeout = IdleTimeout}) ->
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receive
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{system, From, Request} ->
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sys:handle_system_msg(Request, From, Parent, ?MODULE, [], State);
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{'EXIT', Parent, Reason} ->
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terminate(Reason, State);
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Msg ->
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process_msg([Msg], Parent, ensure_stats_timer(IdleTimeout, State))
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after
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IdleTimeout ->
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hibernate(Parent, cancel_stats_timer(State))
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end.
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hibernate(Parent, State) ->
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proc_lib:hibernate(?MODULE, wakeup_from_hib, [Parent, State]).
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%% Maybe do something here later.
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wakeup_from_hib(Parent, State) -> recvloop(Parent, State).
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%%--------------------------------------------------------------------
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%% Ensure/cancel stats timer
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-compile({inline, [ensure_stats_timer/2]}).
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ensure_stats_timer(Timeout, State = #state{stats_timer = undefined}) ->
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State#state{stats_timer = start_timer(Timeout, emit_stats)};
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ensure_stats_timer(_Timeout, State) -> State.
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-compile({inline, [cancel_stats_timer/1]}).
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cancel_stats_timer(State = #state{stats_timer = TRef}) when is_reference(TRef) ->
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ok = emqx_misc:cancel_timer(TRef),
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State#state{stats_timer = undefined};
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cancel_stats_timer(State) -> State.
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Process next Msg
|
||||
|
||||
process_msg([], Parent, State) -> recvloop(Parent, State);
|
||||
|
||||
process_msg([Msg|More], Parent, State) ->
|
||||
case catch handle_msg(Msg, State) of
|
||||
ok ->
|
||||
process_msg(More, Parent, State);
|
||||
{ok, NState} ->
|
||||
process_msg(More, Parent, NState);
|
||||
{ok, Msgs, NState} ->
|
||||
process_msg(append_msg(More, Msgs), Parent, NState);
|
||||
{stop, Reason} ->
|
||||
terminate(Reason, State);
|
||||
{stop, Reason, NState} ->
|
||||
terminate(Reason, NState);
|
||||
{'EXIT', Reason} ->
|
||||
terminate(Reason, State)
|
||||
end.
|
||||
|
||||
-compile({inline, [append_msg/2]}).
|
||||
append_msg([], Msgs) when is_list(Msgs) ->
|
||||
Msgs;
|
||||
append_msg([], Msg) -> [Msg];
|
||||
append_msg(Q, Msgs) when is_list(Msgs) ->
|
||||
lists:append(Q, Msgs);
|
||||
append_msg(Q, Msg) ->
|
||||
lists:append(Q, [Msg]).
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Handle a Msg
|
||||
|
||||
handle_msg({'$gen_call', From, Req}, State) ->
|
||||
case handle_call(From, Req, State) of
|
||||
{reply, Reply, NState} ->
|
||||
gen_server:reply(From, Reply),
|
||||
{ok, NState};
|
||||
{reply, Reply, Msgs, NState} ->
|
||||
gen_server:reply(From, Reply),
|
||||
{ok, next_msgs(Msgs), NState};
|
||||
{stop, Reason, Reply, NState} ->
|
||||
gen_server:reply(From, Reply),
|
||||
stop(Reason, NState)
|
||||
end;
|
||||
|
||||
handle_msg({'$gen_cast', Req}, State) ->
|
||||
with_channel(handle_cast, [Req], State);
|
||||
|
||||
handle_msg({datagram, _SockPid, Data}, State) ->
|
||||
process_incoming(Data, State);
|
||||
|
||||
handle_msg({Inet, _Sock, Data}, State) when Inet == tcp; Inet == ssl ->
|
||||
process_incoming(Data, State);
|
||||
|
||||
handle_msg({outgoing, Data}, State) ->
|
||||
handle_outgoing(Data, State);
|
||||
|
||||
handle_msg({Error, _Sock, Reason}, State)
|
||||
when Error == tcp_error; Error == ssl_error ->
|
||||
handle_info({sock_error, Reason}, State);
|
||||
|
||||
handle_msg({Closed, _Sock}, State)
|
||||
when Closed == tcp_closed; Closed == ssl_closed ->
|
||||
handle_info({sock_closed, Closed}, close_socket(State));
|
||||
|
||||
%% TODO: udp_passive???
|
||||
handle_msg({Passive, _Sock}, State)
|
||||
when Passive == tcp_passive; Passive == ssl_passive ->
|
||||
%% In Stats
|
||||
Bytes = emqx_pd:reset_counter(incoming_bytes),
|
||||
Pubs = emqx_pd:reset_counter(incoming_pkt),
|
||||
InStats = #{cnt => Pubs, oct => Bytes},
|
||||
%% Ensure Rate Limit
|
||||
NState = ensure_rate_limit(InStats, State),
|
||||
%% Run GC and Check OOM
|
||||
NState1 = check_oom(run_gc(InStats, NState)),
|
||||
handle_info(activate_socket, NState1);
|
||||
|
||||
handle_msg(Deliver = {deliver, _Topic, _Msg},
|
||||
State = #state{active_n = ActiveN}) ->
|
||||
Delivers = [Deliver|emqx_misc:drain_deliver(ActiveN)],
|
||||
with_channel(handle_deliver, [Delivers], State);
|
||||
|
||||
%% Something sent
|
||||
%% TODO: Who will deliver this message?
|
||||
handle_msg({inet_reply, _Sock, ok}, State = #state{active_n = ActiveN}) ->
|
||||
case emqx_pd:get_counter(outgoing_pkt) > ActiveN of
|
||||
true ->
|
||||
Pubs = emqx_pd:reset_counter(outgoing_pkt),
|
||||
Bytes = emqx_pd:reset_counter(outgoing_bytes),
|
||||
OutStats = #{cnt => Pubs, oct => Bytes},
|
||||
{ok, check_oom(run_gc(OutStats, State))};
|
||||
false -> ok
|
||||
end;
|
||||
|
||||
handle_msg({inet_reply, _Sock, {error, Reason}}, State) ->
|
||||
handle_info({sock_error, Reason}, State);
|
||||
|
||||
handle_msg({close, Reason}, State) ->
|
||||
?LOG(debug, "Force to close the socket due to ~p", [Reason]),
|
||||
handle_info({sock_closed, Reason}, close_socket(State));
|
||||
|
||||
handle_msg({event, connected}, State = #state{channel = Channel}) ->
|
||||
ClientId = emqx_exproto_channel:info(clientid, Channel),
|
||||
emqx_cm:insert_channel_info(ClientId, info(State), stats(State));
|
||||
|
||||
handle_msg({event, disconnected}, State = #state{channel = Channel}) ->
|
||||
ClientId = emqx_exproto_channel:info(clientid, Channel),
|
||||
emqx_cm:set_chan_info(ClientId, info(State)),
|
||||
emqx_cm:connection_closed(ClientId),
|
||||
{ok, State};
|
||||
|
||||
%handle_msg({event, _Other}, State = #state{channel = Channel}) ->
|
||||
% ClientId = emqx_exproto_channel:info(clientid, Channel),
|
||||
% emqx_cm:set_chan_info(ClientId, info(State)),
|
||||
% emqx_cm:set_chan_stats(ClientId, stats(State)),
|
||||
% {ok, State};
|
||||
|
||||
handle_msg({timeout, TRef, TMsg}, State) ->
|
||||
handle_timeout(TRef, TMsg, State);
|
||||
|
||||
handle_msg(Shutdown = {shutdown, _Reason}, State) ->
|
||||
stop(Shutdown, State);
|
||||
|
||||
handle_msg(Msg, State) ->
|
||||
handle_info(Msg, State).
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Terminate
|
||||
|
||||
-spec terminate(atom(), state()) -> no_return().
|
||||
terminate(Reason, State = #state{channel = Channel}) ->
|
||||
?LOG(debug, "Terminated due to ~p", [Reason]),
|
||||
_ = emqx_exproto_channel:terminate(Reason, Channel),
|
||||
_ = close_socket(State),
|
||||
exit(Reason).
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Sys callbacks
|
||||
|
||||
system_continue(Parent, _Debug, State) ->
|
||||
recvloop(Parent, State).
|
||||
|
||||
system_terminate(Reason, _Parent, _Debug, State) ->
|
||||
terminate(Reason, State).
|
||||
|
||||
system_code_change(State, _Mod, _OldVsn, _Extra) ->
|
||||
{ok, State}.
|
||||
|
||||
system_get_state(State) -> {ok, State}.
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Handle call
|
||||
|
||||
handle_call(_From, info, State) ->
|
||||
{reply, info(State), State};
|
||||
|
||||
handle_call(_From, stats, State) ->
|
||||
{reply, stats(State), State};
|
||||
|
||||
handle_call(_From, Req, State = #state{channel = Channel}) ->
|
||||
case emqx_exproto_channel:handle_call(Req, Channel) of
|
||||
{reply, Reply, NChannel} ->
|
||||
{reply, Reply, State#state{channel = NChannel}};
|
||||
{reply, Reply, Replies, NChannel} ->
|
||||
{reply, Reply, Replies, State#state{channel = NChannel}};
|
||||
{shutdown, Reason, Reply, NChannel} ->
|
||||
shutdown(Reason, Reply, State#state{channel = NChannel})
|
||||
end.
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Handle timeout
|
||||
|
||||
handle_timeout(_TRef, idle_timeout, State) ->
|
||||
shutdown(idle_timeout, State);
|
||||
|
||||
handle_timeout(_TRef, limit_timeout, State) ->
|
||||
NState = State#state{sockstate = idle,
|
||||
limit_timer = undefined
|
||||
},
|
||||
handle_info(activate_socket, NState);
|
||||
handle_timeout(TRef, keepalive, State = #state{socket = Socket,
|
||||
channel = Channel})->
|
||||
case emqx_exproto_channel:info(conn_state, Channel) of
|
||||
disconnected -> {ok, State};
|
||||
_ ->
|
||||
case esockd_getstat(Socket, [recv_oct]) of
|
||||
{ok, [{recv_oct, RecvOct}]} ->
|
||||
handle_timeout(TRef, {keepalive, RecvOct}, State);
|
||||
{error, Reason} ->
|
||||
handle_info({sock_error, Reason}, State)
|
||||
end
|
||||
end;
|
||||
handle_timeout(_TRef, emit_stats, State =
|
||||
#state{channel = Channel}) ->
|
||||
case emqx_exproto_channel:info(clientid, Channel) of
|
||||
undefined ->
|
||||
ignore;
|
||||
ClientId ->
|
||||
emqx_cm:set_chan_stats(ClientId, stats(State))
|
||||
end,
|
||||
{ok, State#state{stats_timer = undefined}};
|
||||
|
||||
handle_timeout(TRef, Msg, State) ->
|
||||
with_channel(handle_timeout, [TRef, Msg], State).
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Parse incoming data
|
||||
|
||||
-compile({inline, [process_incoming/2]}).
|
||||
process_incoming(Data, State = #state{idle_timer = IdleTimer}) ->
|
||||
?LOG(debug, "RECV ~0p", [Data]),
|
||||
Oct = iolist_size(Data),
|
||||
inc_counter(incoming_bytes, Oct),
|
||||
inc_counter(incoming_pkt, 1),
|
||||
inc_counter(recv_pkt, 1),
|
||||
inc_counter(recv_msg, 1),
|
||||
% TODO:
|
||||
%ok = emqx_metrics:inc('bytes.received', Oct),
|
||||
|
||||
ok = emqx_misc:cancel_timer(IdleTimer),
|
||||
NState = State#state{idle_timer = undefined},
|
||||
|
||||
with_channel(handle_in, [Data], NState).
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% With Channel
|
||||
|
||||
with_channel(Fun, Args, State = #state{channel = Channel}) ->
|
||||
case erlang:apply(emqx_exproto_channel, Fun, Args ++ [Channel]) of
|
||||
ok -> {ok, State};
|
||||
{ok, NChannel} ->
|
||||
{ok, State#state{channel = NChannel}};
|
||||
{ok, Replies, NChannel} ->
|
||||
{ok, next_msgs(Replies), State#state{channel = NChannel}};
|
||||
{shutdown, Reason, NChannel} ->
|
||||
shutdown(Reason, State#state{channel = NChannel})
|
||||
end.
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Handle outgoing packets
|
||||
|
||||
handle_outgoing(IoData, State = #state{socket = Socket}) ->
|
||||
?LOG(debug, "SEND ~0p", [IoData]),
|
||||
|
||||
Oct = iolist_size(IoData),
|
||||
|
||||
inc_counter(send_pkt, 1),
|
||||
inc_counter(send_msg, 1),
|
||||
inc_counter(outgoing_pkt, 1),
|
||||
inc_counter(outgoing_bytes, Oct),
|
||||
|
||||
%% FIXME:
|
||||
%%ok = emqx_metrics:inc('bytes.sent', Oct),
|
||||
case send(IoData, State) of
|
||||
ok -> ok;
|
||||
Error = {error, _Reason} ->
|
||||
%% Send an inet_reply to postpone handling the error
|
||||
self() ! {inet_reply, Socket, Error},
|
||||
ok
|
||||
end.
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Handle Info
|
||||
|
||||
handle_info(activate_socket, State = #state{sockstate = OldSst}) ->
|
||||
case activate_socket(State) of
|
||||
{ok, NState = #state{sockstate = NewSst}} ->
|
||||
if OldSst =/= NewSst ->
|
||||
{ok, {event, NewSst}, NState};
|
||||
true -> {ok, NState}
|
||||
end;
|
||||
{error, Reason} ->
|
||||
handle_info({sock_error, Reason}, State)
|
||||
end;
|
||||
|
||||
handle_info({sock_error, Reason}, State) ->
|
||||
?LOG(debug, "Socket error: ~p", [Reason]),
|
||||
handle_info({sock_closed, Reason}, close_socket(State));
|
||||
|
||||
handle_info(Info, State) ->
|
||||
with_channel(handle_info, [Info], State).
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Ensure rate limit
|
||||
|
||||
ensure_rate_limit(Stats, State = #state{limiter = Limiter}) ->
|
||||
case ?ENABLED(Limiter) andalso emqx_limiter:check(Stats, Limiter) of
|
||||
false -> State;
|
||||
{ok, Limiter1} ->
|
||||
State#state{limiter = Limiter1};
|
||||
{pause, Time, Limiter1} ->
|
||||
?LOG(warning, "Pause ~pms due to rate limit", [Time]),
|
||||
TRef = start_timer(Time, limit_timeout),
|
||||
State#state{sockstate = blocked,
|
||||
limiter = Limiter1,
|
||||
limit_timer = TRef
|
||||
}
|
||||
end.
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Run GC and Check OOM
|
||||
|
||||
run_gc(Stats, State = #state{gc_state = GcSt}) ->
|
||||
case ?ENABLED(GcSt) andalso emqx_gc:run(Stats, GcSt) of
|
||||
false -> State;
|
||||
{_IsGC, GcSt1} ->
|
||||
State#state{gc_state = GcSt1}
|
||||
end.
|
||||
|
||||
check_oom(State) ->
|
||||
OomPolicy = ?DEFAULT_OOM_POLICY,
|
||||
case ?ENABLED(OomPolicy) andalso emqx_misc:check_oom(OomPolicy) of
|
||||
Shutdown = {shutdown, _Reason} ->
|
||||
erlang:send(self(), Shutdown);
|
||||
_Other -> ok
|
||||
end,
|
||||
State.
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Activate Socket
|
||||
|
||||
-compile({inline, [activate_socket/1]}).
|
||||
activate_socket(State = #state{sockstate = closed}) ->
|
||||
{ok, State};
|
||||
activate_socket(State = #state{sockstate = blocked}) ->
|
||||
{ok, State};
|
||||
activate_socket(State = #state{socket = Socket,
|
||||
active_n = N}) ->
|
||||
%% FIXME: Works on dtls/udp ???
|
||||
%% How to hanlde buffer?
|
||||
case esockd_setopts(Socket, [{active, N}]) of
|
||||
ok -> {ok, State#state{sockstate = running}};
|
||||
Error -> Error
|
||||
end.
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Close Socket
|
||||
|
||||
close_socket(State = #state{sockstate = closed}) -> State;
|
||||
close_socket(State = #state{socket = Socket}) ->
|
||||
ok = esockd_close(Socket),
|
||||
State#state{sockstate = closed}.
|
||||
|
||||
%%--------------------------------------------------------------------
|
||||
%% Helper functions
|
||||
|
||||
-compile({inline, [next_msgs/1]}).
|
||||
next_msgs(Event) when is_tuple(Event) ->
|
||||
Event;
|
||||
next_msgs(More) when is_list(More) ->
|
||||
More.
|
||||
|
||||
-compile({inline, [shutdown/2, shutdown/3]}).
|
||||
shutdown(Reason, State) ->
|
||||
stop({shutdown, Reason}, State).
|
||||
|
||||
shutdown(Reason, Reply, State) ->
|
||||
stop({shutdown, Reason}, Reply, State).
|
||||
|
||||
-compile({inline, [stop/2, stop/3]}).
|
||||
stop(Reason, State) ->
|
||||
{stop, Reason, State}.
|
||||
|
||||
stop(Reason, Reply, State) ->
|
||||
{stop, Reason, Reply, State}.
|
||||
|
||||
inc_counter(Name, Value) ->
|
||||
_ = emqx_pd:inc_counter(Name, Value),
|
||||
ok.
|
||||
|
|
@ -68,7 +68,7 @@ start_grpc_server(InstaId, Options = #{bind := ListenOn}) ->
|
|||
SslOpts ->
|
||||
[{ssl_options, SslOpts}]
|
||||
end,
|
||||
grpc:start_server(InstaId, ListenOn, Services, SvrOptions),
|
||||
_ = grpc:start_server(InstaId, ListenOn, Services, SvrOptions),
|
||||
io:format("Start ~s gRPC server on ~p successfully.~n",
|
||||
[InstaId, ListenOn]).
|
||||
|
||||
|
|
@ -82,7 +82,7 @@ start_grpc_client_channel(InstaId, Options = #{address := UriStr}) ->
|
|||
"~s://~s:~w", [Scheme, Host, Port])
|
||||
),
|
||||
ClientOpts = case Scheme of
|
||||
https ->
|
||||
"https" ->
|
||||
SslOpts = maps:to_list(maps:get(ssl, Options, #{})),
|
||||
#{gun_opts =>
|
||||
#{transport => ssl,
|
||||
|
|
|
|||
Loading…
Reference in New Issue