I use code.google.com/p/go.net/websocket
in server, so client can get notification from server.
however, It seems after client connected to server, if the
Here's working drop-in solution for gorilla/websocket package.
func keepAlive(c *websocket.Conn, timeout time.Duration) {
lastResponse := time.Now()
c.SetPongHandler(func(msg string) error {
lastResponse = time.Now()
return nil
})
go func() {
for {
err := c.WriteMessage(websocket.PingMessage, []byte("keepalive"))
if err != nil {
return
}
time.Sleep(timeout/2)
if(time.Now().Sub(lastResponse) > timeout) {
c.Close()
return
}
}
}()
}
As recently as 2013, the go.net websocket library does not support (automatic) keep-alive messages. You have two options: