Method SendMessage

neo/framework/async/MsgChannel.cpp:472–528

=============== idMsgChannel::SendMessage Sends a message to a connection, fragmenting if necessary A 0 length will still generate a packet. ================ */

================
*/
int idMsgChannel::SendMessage( idPort &port, const int time, const idBitMsg &msg ) {
	int totalLength;

	if ( remoteAddress.type == NA_BAD ) {
		return -1;
	}

	if ( unsentFragments ) {
		common->Error( "idMsgChannel::SendMessage: called with unsent fragments left" );
		return -1;
	}

	totalLength = 4 + reliableSend.GetTotalSize() + 4 + msg.GetSize();

	if ( totalLength > MAX_MESSAGE_SIZE ) {
		common->Printf( "idMsgChannel::SendMessage: message too large, length = %i\n", totalLength );
		return -1;
	}

	unsentMsg.Init( unsentBuffer, sizeof( unsentBuffer ) );
	unsentMsg.BeginWriting();

	// fragment large messages
	if ( totalLength >= FRAGMENT_SIZE ) {
		unsentFragments = true;
		unsentFragmentStart = 0;

		// write out the message data
		WriteMessageData( unsentMsg, msg );

		// send the first fragment now
		SendNextFragment( port, time );

		return outgoingSequence;
	}

	// write the header
	unsentMsg.WriteShort( id );
	unsentMsg.WriteInt( outgoingSequence );

	// write out the message data
	WriteMessageData( unsentMsg, msg );

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

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

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

	outgoingSequence++;

	return ( outgoingSequence - 1 );
}