Open maurosorrentino opened 6 months ago
Did you try "WebRTCGetStartedDataChannel" example ?
Hi, thank you for your answer. Yes, I took the code from there
From what I've seen, the RTCDataChannel.onopen
event does not fire. Can someone confirm whether this is the case for them too? onmessage
fires properly whenever there is a message. It becomes difficult to start an action when the DC is open, now... Unfortunately, I had to move it to onmessage
as a temp workaround.
All my code is based on the WebRTC DataChannel 'Getting Started'.
Thank you.
A temporary workaround that works, but if you like living dangerously:
pc.ondatachannel += (rdc) =>
{ // Put it here
rdc.onopen += () => logger.LogDebug($"Data channel {rdc.label} opened."); // Instead of here
rdc.onclose += () => logger.LogDebug($"Data channel {rdc.label} closed.");
rdc.onmessage += (datachan, type, data) =>
{
}
}
I can confirm that onopen
at least fires, but at the wrong time, much later, at least on FreeBSD. SipSorcery works wonderfully (i.e. without major issues) on FreeBSD on dotnet 8 (pkg/latest) BTW. I think it has something to do with deadlocks or resource exhaustion. It takes minutes to fire and the performance is abysmal (nearly 25Mbps, megabits or 3.13MB/s (megabytes)) on a third generation intel. Since async
is basically micro/lightweight
state machines, I have also encountered similar issues on Rust
and webrtc-rs
where something blocks something else from happening.
hi @ris-work , would you mind sharing your code on sorrentino.mauro95@gmail.com ? to me also onmessage doesn't work and I don't understand why, I took the how to use code from their example. I didn't have much time this month to look into this though
can you please tell me how you made the datachannel work? I successfully exchanged everything needed (offer and answer have m=datachannel) and the connection state of peer connection is connected. I am only creating 1 datachannel before the offer, rdc.readyState is open but I'm not able to send messages for some reasons. if I look at rdc.negotiated in ondatachannel the answerer tells me it's false, how do I make it pass to true? offer and answer have both nm=application 9 UDP/DTLS/SCTP webrtc-datachannel and the state of peer connection is connected (I even tested it by closing the connection to the server and make a brand new peer connection and when that happens the other client says peer connection state is disconnected)
peerConnection.ondatachannel += (rdc) => { rdc.send("test"); Console.WriteLine($"dc state {rdc.readyState}"); // returns open Console.WriteLine($"datac state {rdc.negotiated}"); // returns false this.rdc = rdc; rdc.onopen += () => Console.WriteLine($"Data channel {rdc.label} open."); // not working rdc.onclose += () => Console.WriteLine($"Data channel {rdc.label} closed."); // the following never fires rdc.onmessage += (datachan, type, data) => { Console.WriteLine($"type {type}"); string msg = Encoding.UTF8.GetString(data); Console.WriteLine($"Data channel {datachan.label} message {type} received: {msg}."); // Do a string echo. rdc.send($"echo: {msg}"); }; }; return peerConnection;