peers use uuid to avoid duplicate connections

p2p/peer_set.go

@@ -34,7 +34,9 @@ func NewPeerSet() *PeerSet {
 	}
 }
 
-// Returns false if peer with key (address) is already in set.
+// Returns false if peer with key (uuid) is already in set.
+// TODO: we may want to do other things like restrict how many peers
+// we're willing to connect to behind a single IP
 func (ps *PeerSet) Add(peer *Peer) bool {
 	ps.mtx.Lock()
 	defer ps.mtx.Unlock()