internal void EnqueueSend(PacketType type, Packet packet)
{
// NOTE: packet may be null in the case of Falcon system messages.
if (packet != null && packet.BytesWritten > FalconPeer.MaxPayloadSize)
{
throw new InvalidOperationException(String.Format("Packet size: {0}, greater than max: {1}", packet.BytesWritten, FalconPeer.MaxPayloadSize));
}
bool isFalconHeaderWritten = currentDatagramTotalBufferOffset > currentDatagram.Offset;
if (isFalconHeaderWritten)
{
if (packet != null && (packet.BytesWritten + Const.ADDITIONAL_PACKET_HEADER_SIZE) > (currentDatagram.Count - (currentDatagramTotalBufferOffset - currentDatagram.Offset))) // i.e. cannot fit
{
// enqueue the current args and get a new one
EnqueueCurrentDatagram();
isFalconHeaderWritten = false;
}
}
if (!isFalconHeaderWritten)
{
// write the falcon header
FalconHelper.WriteFalconHeader(currentDatagram.BackingBuffer,
currentDatagram.Offset,
type,
channelType,
seqCount,
packet == null ? (ushort)0 : (ushort)packet.BytesWritten);
currentDatagramTotalBufferOffset += Const.FALCON_PACKET_HEADER_SIZE;
}
else
{
// TODO limit max additional to 100 so receive channel can distinguish ordinal seq
// write additional header
FalconHelper.WriteAdditionalFalconHeader(currentDatagram.BackingBuffer,
currentDatagramTotalBufferOffset,
type,
channelType,
packet == null ? (ushort)0 : (ushort)packet.BytesWritten);
currentDatagramTotalBufferOffset += Const.ADDITIONAL_PACKET_HEADER_SIZE;
}
if (packet != null)
{
//---------------------------------------------------------------------------------------------------
packet.CopyBytes(0, currentDatagram.BackingBuffer, currentDatagramTotalBufferOffset, packet.BytesWritten);
//---------------------------------------------------------------------------------------------------
currentDatagramTotalBufferOffset += packet.BytesWritten;
}
}
