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
}
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 {}
}