check for connectedness using Connectedness

(counting open connections requires copying)

p2p/host/basic/basic_host.go

@@ -384,8 +384,7 @@ func (h *BasicHost) Connect(ctx context.Context, pi pstore.PeerInfo) error {
 	// absorb addresses into peerstore
 	h.Peerstore().AddAddrs(pi.ID, pi.Addrs, pstore.TempAddrTTL)
 
-	cs := h.Network().ConnsToPeer(pi.ID)
-	if len(cs) > 0 {
+	if h.Network().Connectedness(pi.ID) == inet.Connected {
 		return nil
 	}
 

p2p/host/routed/routed.go

@@ -47,7 +47,7 @@ func Wrap(h host.Host, r Routing) *RoutedHost {
 // given peer, it will use its routing system to try to find some.
 func (rh *RoutedHost) Connect(ctx context.Context, pi pstore.PeerInfo) error {
 	// first, check if we're already connected.
-	if len(rh.Network().ConnsToPeer(pi.ID)) > 0 {
+	if rh.Network().Connectedness(pi.ID) == inet.Connected {
 		return nil
 	}