backpressure and webrtc.DataChannel.OnMessage

[amitu]

How long should a handler attached to webrtc.DataChannel.OnMessage be allowed to take?

If I understand correctly, data channel buffer is drained after OnMessage is returned, so if I am reading from data channel and writing to a slow io.Writer(), I would prefer to block on io.Writer() from my OnMessage handler, but is it advisable for OnMessage to block?

Would it affect other data channels if we have more than one?

[amitu]

Another question: if I am in the callback, say OnMessage, can I call methods on dc before I return from it? Eg read the dc.ReadyState(), or call dc.Send() on it?