请教下大家，800连接内存涨的很快，代码这样有问题吗？

func PollMessageHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
userId := vars["userId"]
hj, ok := w.(http.Hijacker)
if !ok {
    errorMsg := "The Web Server does not support Hijacking! "
    http.Error(w, errorMsg, http.StatusInternalServerError)
    return
}
conn, bufrw, err := hj.Hijack()
if err != nil {
    errorMsg := "Internal error!"
    http.Error(w, errorMsg, http.StatusInternalServerError)
    return
}
client := &WebClient{userId, conn, bufrw, make(chan []byte)}
WebClientConn[userId] = client
common.Log(0, " Web Client ", userId, "...", len(WebClientConn))
go client.responseMessage()}

func (c *WebClient) responseMessage() {
for {
    select {
    case body := <-c.Send:
        c.Bufrw.Write([]byte("HTTP/1.1 200 OK\r\n\r\n"))
        c.Bufrw.Write(body)
        common.Log(0, "------------------------------ To ", c.UserId)
        break
    case <-time.After(time.Second * 50):
        c.Bufrw.Write([]byte("HTTP/1.1 200 OK\r\n\r\n"))
        c.Bufrw.Write([]byte("Timeout"))
        break
    }
}
c.Bufrw.Flush()
c.Conn.Close()}

请问这样不对吗？每次来了连接，丢到goroutine等待channel来消息或者超时。不管超时还是拿到数据，都会Close掉这个连接，我在客户端测试，800个连接，内存很快就飙高了。