Method SendNextFragment

neo/framework/async/MsgChannel.cpp:415–462

================= idMsgChannel::SendNextFragment Sends one fragment of the current message. ================= */

=================
*/
void idMsgChannel::SendNextFragment( idPort &port, const int time ) {
	idBitMsg	msg;
	byte		msgBuf[MAX_PACKETLEN];
	int			fragLength;

	if ( remoteAddress.type == NA_BAD ) {
		return;
	}

	if ( !unsentFragments ) {
		return;
	}

	// write the packet
	msg.Init( msgBuf, sizeof( msgBuf ) );
	msg.WriteShort( id );
	msg.WriteInt( outgoingSequence | FRAGMENT_BIT );

	fragLength = FRAGMENT_SIZE;
	if ( unsentFragmentStart + fragLength > unsentMsg.GetSize() ) {
		fragLength = unsentMsg.GetSize() - unsentFragmentStart;
	}

	msg.WriteShort( unsentFragmentStart );
	msg.WriteShort( fragLength );
	msg.WriteData( unsentMsg.GetData() + unsentFragmentStart, fragLength );

	// send the packet
	port.SendPacket( remoteAddress, msg.GetData(), msg.GetSize() );

	// update rate control variables
	UpdateOutgoingRate( time, msg.GetSize() );

	if ( net_channelShowPackets.GetBool() ) {
		common->Printf( "%d send %4i : s = %i fragment = %i,%i\n", id, msg.GetSize(), outgoingSequence - 1, unsentFragmentStart, fragLength );
	}

	unsentFragmentStart += fragLength;

	// this exit condition is a little tricky, because a packet
	// that is exactly the fragment length still needs to send
	// a second packet of zero length so that the other side
	// can tell there aren't more to follow
	if ( unsentFragmentStart == unsentMsg.GetSize() && fragLength != FRAGMENT_SIZE ) {
		outgoingSequence++;
		unsentFragments = false;
	}
}

/*
===============