Beispiel #1
0
Datei: ping.go Projekt: rht/ipget
func (p *PingService) PingHandler(s inet.Stream) {
	buf := make([]byte, PingSize)

	for {
		_, err := io.ReadFull(s, buf)
		if err != nil {
			log.Debug(err)
			return
		}

		_, err = s.Write(buf)
		if err != nil {
			log.Debug(err)
			return
		}
	}
}
Beispiel #2
0
Datei: ping.go Projekt: rht/ipget
func ping(s inet.Stream) (time.Duration, error) {
	buf := make([]byte, PingSize)
	u.NewTimeSeededRand().Read(buf)

	before := time.Now()
	_, err := s.Write(buf)
	if err != nil {
		return 0, err
	}

	rbuf := make([]byte, PingSize)
	_, err = io.ReadFull(s, rbuf)
	if err != nil {
		return 0, err
	}

	if !bytes.Equal(buf, rbuf) {
		return 0, errors.New("ping packet was incorrect!")
	}

	return time.Now().Sub(before), nil
}