don't wrap conns with metrics if bwc is nil

48ef0bb9 · Jeromy · 880d0c04 · 48ef0bb9
Commit 48ef0bb9 authored Sep 04, 2016 by Jeromy
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Showing with 5 additions and 2 deletions

swarm.go swarm.go +5 -2

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--- a/swarm.go
+++ b/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{