discovery

type Directory interface {
	Get(friends.ID) []Mapping
	Put(Mapping)
	Track(friends.ID)

	Scan(func(Mapping) bool)
	Subscribe() chan Mapping
}

type Mapping struct {
	Who       friends.ID
	Where     string
	Timestamp time.Time
}

type Notifier struct {
	// contains filtered or unexported fields
}

type Provider interface {
	Serve(dir Directory) error
	SetLocalEndpoints([]string)
	Shutdown()
}

type SimpleDirectory struct {
	Notifier
	// contains filtered or unexported fields
}