关于webscoket开发的消息送达率

使用扩展:github.com/gorilla/websocket 对client的消息写与心跳如下: ```golang func (c *Client) write() { pingTicker := time.NewTicker(pingPeriod) defer func() { pingTicker.Stop() Manager.Unregister <- c c.Socket.Close() }() for { select { case point, ok := <-c.send: if !ok { c.Socket.WriteMessage(websocket.CloseMessage, []byte{}) fmt.Println("send err:", point) return } point.PushTime = time.Now().Unix() msg, _ := json.Marshal(point) fmt.Println(point.Content) writeMessage := c.Socket.WriteMessage(websocket.TextMessage, msg) if writeMessage != nil { offline(point) } case <-pingTicker.C: c.Socket.SetWriteDeadline(time.Now().Add(writeWait)) err := c.Socket.WriteMessage(websocket.PingMessage, []byte("ping")) c.Socket.WriteMessage(websocket.TextMessage, []byte("ping")) if err != nil { fmt.Println("time out:", err) return } } } } ``` 正常情况下使用conn.send <- point投递消息,client都正确接收了(50ms/条 10000条) 但是客户端手动断网之后(异常离线),当pingTicker.C响应到client离线时,出现了消息丢失的情况即client最后一条消息与离线消息断层. 也就是client异常离线后c.Socket.WriteMessage(websocket.TextMessage, msg)正常发送了消息 err==nil无法触发offline方法. 求问:如何修改才能保障消息的不丢失?