Insist upon an "ordered" TCP data channel for delivery reliability.

// FREEBIE
8 years ago · dcdfcb0a6f
parent 1444cfc630
commit dcdfcb0a6f
1 changed files with 6 additions and 3 deletions
--- a/Signal/src/call/PeerConnectionClient.swift
+++ b/Signal/src/call/PeerConnectionClient.swift
@ -166,8 +166,11 @@ class PeerConnectionClient: NSObject, RTCPeerConnectionDelegate, RTCDataChannelD
    private func createSignalingDataChannel() {
        AssertIsOnMainThread()

+        let configuration = RTCDataChannelConfiguration()
+        // Insist upon an "ordered" TCP data channel for delivery reliability.
+        configuration.isOrdered = true
        let dataChannel = peerConnection.dataChannel(forLabel: Identifiers.dataChannelSignaling.rawValue,
-                                                     configuration: RTCDataChannelConfiguration())
+                                                     configuration: configuration)
        dataChannel.delegate = self

        assert(self.dataChannel == nil)