948aa70af7
As part of this, kill off the evil global FDM state, and avoid us copying FGInterfaces (which is bad since it contains TiedProperties and an FGGroundCache, neither of which are especially keen on being copied). Will probably disable copy/assignment on TiedProperties in a future commit.
92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
// native.cxx -- FGFS "Native" 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 - http://www.flightgear.org/~curt
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <simgear/debug/logstream.hxx>
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#include "native.hxx"
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#include <Main/globals.hxx>
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#include <FDM/fdm_shell.hxx>
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#include <FDM/flight.hxx>
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FGNative::FGNative() {
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}
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FGNative::~FGNative() {
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}
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// open hailing frequencies
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bool FGNative::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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// process work for this port
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bool FGNative::process()
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{
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FDMShell* fdm = static_cast<FDMShell*>(globals->get_subsystem("flight"));
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FGInterface* fdmState = fdm->getInterface();
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if (!fdmState) {
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return false;
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}
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SGIOChannel *io = get_io_channel();
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if ( get_direction() == SG_IO_OUT ) {
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return fdmState->writeState(io);
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} else {
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return fdmState->readState(io);
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}
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}
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// close the channel
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bool FGNative::close() {
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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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