public async Task <INetworkStream> NewStream(PeerId peer, IEnumerable <ProtocolId> protocols, CancellationToken cancellationToken)
{
var pref = PreferredProtocol(peer, protocols);
if (pref != "")
{
return(await NewStream(peer, pref, cancellationToken));
}
var protosstrs = protocols.Select(p => p.ToString()).ToArray();
var s = await Network.NewStreamAsync(peer, cancellationToken);
if (s == null)
{
return(null);
}
var selected = await MultistreamMuxer.SelectOneOfAsync(protosstrs, ((IReadWriter)s).AsSystemStream(), cancellationToken);
if (selected == null)
{
s.Dispose();
return(null);
}
s.Protocol = new ProtocolId(selected);
Peerstore.AddProtocols(peer, selected);
//reporter
return(s);
}
private ProtocolId PreferredProtocol(PeerId peer, IEnumerable <ProtocolId> pids)
{
var pidstrs = pids.Select(p => p.ToString()).ToArray();
var supported = Peerstore.SupportsProtocols(peer, pidstrs);
if (supported == null)
{
return(string.Empty);
}
return(supported.FirstOrDefault());
}
public Task Connect(PeerInfo pi, CancellationToken cancellationToken)
{
Peerstore.AddAddresses(pi.Id, pi.Addresses, AddressManager.TempAddrTTL);
var cs = Network.ConnectionsToPeer(pi.Id);
if (cs.Length > 0)
{
return(Task.CompletedTask);
}
return(DialPeer(pi.Id, cancellationToken));
}
private async Task DialPeer(PeerId peer, CancellationToken cancellationToken)
{
var c = await Network.DialPeerAsync(peer, cancellationToken);
if (c == null)
{
return;
}
Peerstore.AddProtocols(peer);
await Task.Factory.StartNew(() => _ids.IdentifyConnection(c), cancellationToken);
}
private void NewConnectionHandler(INetworkConnection connection)
{
Peerstore.AddProtocols(connection.RemotePeer);
_ids.IdentifyConnection(connection);
}