Add close message type

relay/server/store.go

@@ -24,7 +24,6 @@ func (s *Store) AddPeer(peer *Peer) {
 func (s *Store) DeletePeer(peer *Peer) {
 	s.peersLock.Lock()
 	defer s.peersLock.Unlock()
-
 	delete(s.peers, peer.String())
 }
 
@@ -35,3 +34,14 @@ func (s *Store) Peer(id string) (*Peer, bool) {
 	p, ok := s.peers[id]
 	return p, ok
 }
+
+func (s *Store) Peers() []*Peer {
+	s.peersLock.RLock()
+	defer s.peersLock.RUnlock()
+
+	peers := make([]*Peer, 0, len(s.peers))
+	for _, p := range s.peers {
+		peers = append(peers, p)
+	}
+	return peers
+}