[tor-commits] [snowflake/master] Remove for loop around broker.Negotiate

[cohosh@xxxxxxxxxxxxxx]

commit 665d76c5b04c4e470d85a826ea617a2404ed4a1d
Author: Cecylia Bocovich <cohosh@xxxxxxxxxxxxxx>
Date:   Fri Nov 13 15:08:00 2020 -0500

    Remove for loop around broker.Negotiate
    
    Instead of continuously polling the broker until the client receives a
    snowflake, fail back to the Connect() loop and try again to collect more
    peers after ReconnectTimeout.
---
 client/lib/webrtc.go | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/client/lib/webrtc.go b/client/lib/webrtc.go
index af5a45a..3a23ffc 100644
--- a/client/lib/webrtc.go
+++ b/client/lib/webrtc.go
@@ -112,7 +112,10 @@ func (c *WebRTCPeer) connect(config *webrtc.Configuration, broker *BrokerChannel
 	if err != nil {
 		return err
 	}
-	answer := exchangeSDP(broker, c.pc.LocalDescription())
+	answer, err := broker.Negotiate(c.pc.LocalDescription())
+	if err != nil {
+		return err
+	}
 	log.Printf("Received Answer.\n")
 	err = c.pc.SetRemoteDescription(*answer)
 	if nil != err {
@@ -217,22 +220,6 @@ func (c *WebRTCPeer) establishDataChannel() (*webrtc.DataChannel, error) {
 	}
 }
 
-// exchangeSDP sends the local SDP offer to the Broker, awaits the SDP answer,
-// and returns the answer.
-func exchangeSDP(broker *BrokerChannel, offer *webrtc.SessionDescription) *webrtc.SessionDescription {
-	// Keep trying the same offer until a valid answer arrives.
-	for {
-		// Send offer to broker (blocks).
-		answer, err := broker.Negotiate(offer)
-		if err == nil {
-			return answer
-		}
-		log.Printf("BrokerChannel Error: %s", err)
-		log.Printf("Failed to retrieve answer. Retrying in %v", ReconnectTimeout)
-		<-time.After(ReconnectTimeout)
-	}
-}
-
 // Close all channels and transports
 func (c *WebRTCPeer) cleanup() {
 	// Close this side of the SOCKS pipe.

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