减少判断心跳超时的开销

api/chat.py

@@ -165,15 +165,13 @@ class ChatHandler(tornado.websocket.WebSocketHandler):  # noqa
 
     def on_message(self, message):
         try:
-            # 超时没有加入房间也断开
-            if self.has_joined_room:
-                self._refresh_receive_timeout_timer()
-
             body = json.loads(message)
             cmd = body['cmd']
 
             if cmd == Command.HEARTBEAT:
-                pass
+                # 超时没有加入房间也断开
+                if self.has_joined_room:
+                    self._refresh_receive_timeout_timer()
 
             elif cmd == Command.JOIN_ROOM:
                 if self.has_joined_room:

frontend/src/api/chat/ChatClientDirect/index.js

@@ -183,7 +183,6 @@ export default class ChatClientDirect {
   }
 
   onWsMessage(event) {
-    this.refreshReceiveTimeoutTimer()
     if (!(event.data instanceof ArrayBuffer)) {
       console.warn('未知的websocket消息类型，data=', event.data)
       return
@@ -226,6 +225,7 @@ export default class ChatClientDirect {
     }
     case OP_HEARTBEAT_REPLY: {
       // 服务器心跳包，包含人气值，这里没用
+      this.refreshReceiveTimeoutTimer()
       break
     }
     default: {

frontend/src/api/chat/ChatClientRelay.js

@@ -99,11 +99,11 @@ export default class ChatClientRelay {
   }
 
   onWsMessage(event) {
-    this.refreshReceiveTimeoutTimer()
-
     let { cmd, data } = JSON.parse(event.data)
     switch (cmd) {
     case COMMAND_HEARTBEAT: {
+      this.refreshReceiveTimeoutTimer()
+
       // 不能由定时器触发发心跳包，因为浏览器会把不活动页面的定时器调到1分钟以上
       this.websocket.send(JSON.stringify({
         cmd: COMMAND_HEARTBEAT