97 lines
2.1 KiB
C++
97 lines
2.1 KiB
C++
// protocol.cxx -- High level protocal class
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//
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// Written by Curtis Olson, started November 1999.
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//
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// Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#include <simgear/debug/logstream.hxx>
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#include <simgear/io/iochannel.hxx>
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#include "protocol.hxx"
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FGProtocol::FGProtocol() :
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hz(0.0),
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count_down(0),
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enabled(false)
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{
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}
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FGProtocol::~FGProtocol() {
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}
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// standard I/O channel open routine
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bool FGProtocol::open() {
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if ( is_enabled() ) {
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SG_LOG( SG_IO, SG_ALERT, "This shouldn't happen, but the channel "
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<< "is already in use, ignoring" );
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return false;
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}
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SGIOChannel *io = get_io_channel();
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if ( ! io->open( get_direction() ) ) {
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SG_LOG( SG_IO, SG_ALERT, "Error opening channel communication layer." );
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return false;
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}
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set_enabled( true );
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return true;
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}
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// dummy process routine
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bool FGProtocol::process() {
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SG_LOG( SG_IO, SG_INFO, "dummy FGProtocol::process()" );
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return false;
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}
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// dummy close routine
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bool FGProtocol::close() {
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SG_LOG( SG_IO, SG_INFO, "dummy FGProtocol::close()" );
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return false;
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}
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// standard I/O channel close routine
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bool FGProtocol::gen_message() {
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SGIOChannel *io = get_io_channel();
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set_enabled( false );
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if ( ! io->close() ) {
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return false;
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}
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return true;
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}
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// dummy close routine
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bool FGProtocol::parse_message() {
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SG_LOG( SG_IO, SG_INFO, "dummy FGProtocol::close()" );
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return false;
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}
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