func testKnowsAddrs(t *testing.T, h host.Host, p peer.ID, expected []ma.Multiaddr) {
actual := h.Peerstore().Addrs(p)
if len(actual) != len(expected) {
t.Error("dont have the same addresses")
}
have := map[string]struct{}{}
for _, addr := range actual {
have[addr.String()] = struct{}{}
}
for _, addr := range expected {
if _, found := have[addr.String()]; !found {
t.Errorf("%s did not have addr for %s: %s", h.ID(), p, addr)
// panic("ahhhhhhh")
}
}
}
func NewMdnsService(peerhost host.Host, interval time.Duration) (Service, error) {
// TODO: dont let mdns use logging...
golog.SetOutput(ioutil.Discard)
var ipaddrs []net.IP
port := 4001
addrs, err := getDialableListenAddrs(peerhost)
if err != nil {
log.Warning(err)
} else {
port = addrs[0].Port
for _, a := range addrs {
ipaddrs = append(ipaddrs, a.IP)
}
}
myid := peerhost.ID().Pretty()
info := []string{myid}
service, err := mdns.NewMDNSService(myid, ServiceTag, "", "", port, ipaddrs, info)
if err != nil {
return nil, err
}
// Create the mDNS server, defer shutdown
server, err := mdns.NewServer(&mdns.Config{Zone: service})
if err != nil {
return nil, err
}
s := &mdnsService{
server: server,
service: service,
host: peerhost,
interval: interval,
}
go s.pollForEntries()
return s, nil
}