public Task <IConn> Accept()
{
if (_incoming.TryDequeue(out var conn))
{
return(Task.FromResult <IConn>(conn));
}
if (_poll != null)
{
throw new IOException("There is a wait already");
}
_poll = _proc.Promise <IConn>(Timeout.InfiniteTimeSpan, _proc.Token);
return(_poll.Task);
}
public async Task <SimPacket> Read(TimeSpan timeout)
{
if (_closed)
{
throw new IOException("Socket closed");
}
if (_readBuffer.TryDequeue(out var tuple))
{
if (tuple.Flag == SimFlag.Reset)
{
Close("RESET");
throw new IOException("Connection reset");
}
if (NextIsFin())
{
Close("FIN");
}
return(tuple);
}
_pendingRead = _proc.Promise <SimPacket>(timeout, _proc.Token);
var msg = await _pendingRead.Task;
if (msg.Flag == SimFlag.Reset)
{
Close("RESET");
throw new IOException("Connection reset");
}
if (NextIsFin())
{
Close("FIN");
}
return(msg);
}