Method on_open

Ch04/websocket/examples/unresponsive_timer.rs:19–23

(&mut self, _: Handshake)

}
impl Handler for Server {
    fn on_open(&mut self, _: Handshake) -> Result<()> {
        println!("Opened a connetion");
        self.out.timeout(15_000, CLIENT_UNRESPONSIVE)?;
        self.out.timeout(5_000, PING)
    }

    fn on_timeout(&mut self, event: Token) -> Result<()> {
        println!("event: {:?}", event);