fix AsyncTcpConnection->getRemoteIp return domain

Connection/AsyncTcpConnection.php

@@ -122,6 +122,8 @@ class AsyncTcpConnection extends TcpConnection
             }
             // 标记状态为连接已经建立
             $this->_status = self::STATUS_ESTABLISH;
+            // 获得远端实际ip端口
+            $this->_remoteAddress = stream_socket_get_name();
             // 如果有设置onConnect回调，则执行
             if($this->onConnect)
             {