don't wrap conns with metrics if bwc is nil

9a9a8de2 · Jeromy · ab39c6f5 · 9a9a8de2
Commit 9a9a8de2 authored 8 years ago by Jeromy
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with 5 additions and 2 deletions
+5 -2
--- a/p2p/net/swarm/swarm.go
+++ b/p2p/net/swarm/swarm.go
@@ -109,8 +109,11 @@ func NewSwarm(ctx context.Context, listenAddrs []ma.Multiaddr,
 		return nil, err
 	}

-	wrap := func(c transport.Conn) transport.Conn {
-		return mconn.WrapConn(bwc, c)
+	var wrap func(c transport.Conn) transport.Conn
+	if bwc != nil {
+		wrap = func(c transport.Conn) transport.Conn {
+			return mconn.WrapConn(bwc, c)
+		}
 	}

 	s := &Swarm{