fix (socketIot): 对socket连接结果进行判定以防止产生dump

dustin007442 · dustin007442 · commit eaf48d73cb90 · 2023-05-08T10:31:08.000+08:00
现象: 当配置为TCP私有云的时候, 如果连接失败, 会导致模组dump.
原因: 由于网络等原因导致socket连接接失败后, 业务代码依然继续后续执行(在一个无效连接socket上操作).
解决方案: 判定连接结果，若失败init函数直接返回False.(此处之所以返回False而不是抛出异常，是因为，后续上行数据中会有重连机制，若直接抛异常，则会导致模组DTU应用整个启动失败)
diff --git a/code/modules/socketIot.py b/code/modules/socketIot.py
@@ -193,7 +193,10 @@ def init(self, enforce=False):
             except Exception as e:
                 logger.error("stop listen thread falied. %s" % e)
 
-        self.__connect()
+        # FIX: when connect failed we return False instead of raise Exception for another try(self.init when post data.)
+        if not self.__connect():
+            return False
+
         if self.__keep_alive != 0:
             try:
                 self.__socket.setsockopt(usocket.SOL_SOCKET, usocket.TCP_KEEPALIVE, self.__keep_alive)
