Ejemplo n.º 1
0
func NewAnnouncer(servicesOffered []string, dedicated bool) (*announcer, error) {
	con, err := reliable.NewReliableConnection()
	if err != nil {
		return nil, err
	}

	annGroup := net.ParseIP(announce_group)
	annPort64, _ := strconv.ParseInt(announce_port, 10, 64)
	annPort := int(annPort64)
	annAddress := &net.UDPAddr{IP: annGroup, Port: annPort}

	myUuid := uuid.NewV1()

	a := &announcer{
		unicastConnection: con,
		announceAddress:   annAddress,
		id:                myUuid,
		peers:             NewPeerList(),
	}

	a.peers.addOrUpdateAnnouncePeer(&announcePeer{
		Id:              myUuid,
		Addresses:       con.GetListenAddresses(),
		ServicesOffered: servicesOffered,
	})

	go a.listenToUnicast()
	go a.periodicAnnounce()

	if dedicated {
		err = a.Listen()
		if err != nil {
			return nil, err
		}
	}

	return a, nil
}
Ejemplo n.º 2
0
func main() {
	fmt.Printf("GoMaxProcs: %d\n", runtime.GOMAXPROCS(0))
	/*addr := &net.UDPAddr{
	        Port: 59229,
	        IP: net.ParseIP("127.0.0.1"),
	    }
	    conn, err := net.ListenUDP("udp", addr)
	    defer conn.Close()
	    if err != nil {
	        panic(err)
	    }

		addr2 := &net.UDPAddr{
	        Port: 59230,
	        IP: net.ParseIP("127.0.0.1"),
	    }
		//conn2, err := net.DialUDP("udp", addr2, addr)
		conn2, err := net.ListenUDP("udp", addr2)
	    defer conn2.Close()
	    if err != nil {
	        panic(err)
	    }

		go func() {
			incomingBuf := make([]byte, 1500)
			for {
				n, _, err := conn.ReadFromUDP(incomingBuf)
				if err != nil {
					panic(err)
				}
				//fmt.Printf("Got data")
				conn.WriteToUDP(incomingBuf[:n], addr)
			}
		}()

		data := []byte("Abjkfdjskljdklfjdskljdskljfklds")
		incomingBuf := make([]byte, 1500)
		var rttTot time.Duration
		rttCount := 0

		go func() {
			for {
				<- time.After(time.Second * 2)
				rttAve := time.Duration(-1)
				if rttCount > 0 {
					rttAve = rttTot / time.Duration(rttCount)
				}
				fmt.Printf("Rtt Average: %v\n", rttAve)
			}
		}()

		for {
			start := time.Now()
			_, err := conn2.WriteTo(data, addr)
			//fmt.Printf("Wrote %d bytes\n", i)
			if err != nil {
				panic(err)
			}

			_, _, err = conn.ReadFromUDP(incomingBuf)
			if err != nil {
				panic(err)
			}
			end := time.Now()
			rttTot += end.Sub(start)
			rttCount ++
		}

		return*/
	r1, err := reliable.NewReliableConnection()
	if err != nil {
		fmt.Errorf("NewReliableConnection() returned error: %q", err)
	}
	if r1 == nil {
		fmt.Errorf("NewReliableConnection() returned nil connection")
	}

	r2, err := reliable.NewReliableConnection()
	if err != nil {
		fmt.Errorf("NewReliableConnection() returned error: %q", err)
	}
	if r2 == nil {
		fmt.Errorf("NewReliableConnection() returned nil connection")
	}

	p := r1.FindOrAddPeer(&net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: r2.Port})
	if p == nil {
		fmt.Errorf("ConnectPeer() returned nil peer")
	}

	isAlive := p.IsAlive(time.Millisecond * 2000)
	if !isAlive {
		fmt.Errorf("peer.IsAlive(2000ms) returned false")
	}

	select {}
}