// writes as many enqued as as can fit into datagram
private void WriteEnquedAcksToDatagram(Datagram datagram, int index)
{
while (enqueudAcks.Count > 0 && (datagram.MaxSize - (index - datagram.Offset)) > Const.FALCON_PACKET_HEADER_SIZE)
{
AckDetail ack = enqueudAcks.Dequeue();
FalconHelper.WriteAck(ack, datagram.BackingBuffer, index);
index += Const.FALCON_PACKET_HEADER_SIZE;
}
datagram.Resize(index - datagram.Offset);
}
