1 // protocol.cxx -- High level protocal class
3 // Written by Curtis Olson, started November 1999.
5 // Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <simgear/debug/logstream.hxx>
26 #include "iochannel.hxx"
27 #include "protocol.hxx"
30 FGProtocol::FGProtocol() :
38 FGProtocol::~FGProtocol() {
42 // standard I/O channel open routine
43 bool FGProtocol::open() {
45 FG_LOG( FG_IO, FG_ALERT, "This shouldn't happen, but the channel "
46 << "is already in use, ignoring" );
50 FGIOChannel *io = get_io_channel();
52 if ( ! io->open( get_direction() ) ) {
53 FG_LOG( FG_IO, FG_ALERT, "Error opening channel communication layer." );
63 // dummy process routine
64 bool FGProtocol::process() {
65 FG_LOG( FG_IO, FG_INFO, "dummy FGProtocol::process()" );
70 // dummy close routine
71 bool FGProtocol::close() {
72 FG_LOG( FG_IO, FG_INFO, "dummy FGProtocol::close()" );
77 // standard I/O channel close routine
78 bool FGProtocol::gen_message() {
79 FGIOChannel *io = get_io_channel();
83 if ( ! io->close() ) {
91 // dummy close routine
92 bool FGProtocol::parse_message() {
93 FG_LOG( FG_IO, FG_INFO, "dummy FGProtocol::close()" );