public INotifyToken Send(byte[] packet)
{
if (sent.Count >= MaxSentQueue)
{
throw new InvalidOperationException("Sent queue is full");
}
ushort sequence = ackSystem.Send(packet);
// todo use pool to stop allocations
var token = new NotifyToken(sequence);
sent.Enqueue(token);
return(token);
}
private void NotifySent(ReceivedPacket received)
{
while (sent.Count > 0)
{
NotifyToken token = sent.Peek();
int distance = (int)ackSystem.sequencer.Distance(received.receivedSequence, token.Sequence);
// negative distance means next is sent after last ack, so nothing to ack yet
if (distance < 0)
{
return;
}
// positive distance means it should have been acked, or mark it as lost
sent.Dequeue();
// if distance above size then it is outside of mask, so set as lost
bool lost = OutsideOfMask(distance) || NotInMask(distance, received.receivedMask);
token.Notify(!lost);
}
}
