func (d *Discoverer) StartLocal(localPort int, localMCAddr string) {
if localPort > 0 {
bb, err := beacon.NewBroadcast(localPort)
if err != nil {
if debug {
l.Debugln(err)
}
l.Infoln("Local discovery over IPv4 unavailable")
} else {
d.broadcastBeacon = bb
go d.recvAnnouncements(bb)
}
}
if len(localMCAddr) > 0 {
mb, err := beacon.NewMulticast(localMCAddr)
if err != nil {
if debug {
l.Debugln(err)
}
l.Infoln("Local discovery over IPv6 unavailable")
} else {
d.multicastBeacon = mb
go d.recvAnnouncements(mb)
}
}
if d.broadcastBeacon == nil && d.multicastBeacon == nil {
l.Warnln("Local discovery unavailable")
} else {
d.localBcastTick = time.Tick(d.localBcastIntv)
d.forcedBcastTick = make(chan time.Time)
go d.sendLocalAnnouncements()
}
}
func (d *Discoverer) startLocalIPv4Broadcasts(localPort int) {
bb := beacon.NewBroadcast(localPort)
d.beacons = append(d.beacons, bb)
go d.recvAnnouncements(bb)
bb.ServeBackground()
}