Cannot create multiple DataStreams from one PeerConnection

[eras]

It seems the interface is designed so that it is impossible to create multiple DataStreams for one PeerConnection. Line 240 of lib.rs says:

    pub async fn dial(self, label: &str) -> anyhow::Result<DataStream> {

taking self in, disallowing it to be called multiple times. In datachannel-rs there is no such limitation, as can be seen from line 355 of peerconnection.rs:

    pub fn create_data_channel_ex<C>(
        &mut self,
        label: &str,
        dc_handler: C,
        dc_init: &DataChannelInit,
    ) -> Result<Box<RtcDataChannel<C>>>

The documentation for libdatachannel doesn't outright say that there can be multiple DataChannels, but it does say that rtcCreateDataChannel adds a datachannel to a Peer Connection and in general this is possible.

It can be useful to have e.g. one unordered and unreliable DataChannel paired with an ordered an reliable DataChannel.

It seems some internal changes are needed to make this happen, peer_con: Arc<Mutex<Box<RtcPeerConnection<ConnInternal>>>> in PeerConnection probably needs to be an Arc as well, for one. I guess I misread it :).

[eras]

Turns out the native interface change was trivial, though I did only try the normal use case ;-). However, the Wasm version needs more work :/.