first commit

2022-10-20 20:29:11 +08:00
commit 4d531f8044
3238 changed files with 1387862 additions and 0 deletions
--- a/src/Network/native_ctrls.cxx
+++ b/src/Network/native_ctrls.cxx
@@ -0,0 +1,140 @@
+// native_ctrls.cxx -- FGFS "Native" controls I/O class
+//
+// Written by Curtis Olson, started July 2001.
+//
+// Copyright (C) 2001  Curtis L. Olson - http://www.flightgear.org/~curt
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//
+// $Id$
+
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <simgear/debug/logstream.hxx>
+#include <simgear/io/iochannel.hxx>
+#include <simgear/io/lowlevel.hxx> // endian tests
+
+#if FG_HAVE_DDS
+#include <simgear/io/SGDataDistributionService.hxx>
+#endif
+
+#include <Main/fg_props.hxx>
+#include <Scenery/scenery.hxx>	// ground elevation
+
+#include "native_structs.hxx"
+#include "native_ctrls.hxx"
+
+// FreeBSD works better with this included last ... (?)
+#if defined( _MSC_VER )
+#  include <windows.h>
+#elif defined( __MINGW32__ )
+#  include <winsock2.h>
+#else
+#  include <netinet/in.h>	// htonl() ntohl()
+#endif
+
+// open hailing frequencies
+bool FGNativeCtrls::open() {
+    if ( is_enabled() ) {
+        SG_LOG( SG_IO, SG_ALERT, "This shouldn't happen, but the channel "
+                << "is already in use, ignoring" );
+        return false;
+    }
+
+    SGIOChannel *io = get_io_channel();
+
+#if FG_HAVE_DDS
+    if ( io->get_type() == sgDDSType ) {
+        SG_DDS_Topic *dds = static_cast<SG_DDS_Topic*>(io);
+        dds->setup("FG_DDS_Ctrls", &FG_DDS_Ctrls_desc, sizeof(FG_DDS_Ctrls));
+    }
+#endif
+
+    if ( ! io->open( get_direction() ) ) {
+        SG_LOG( SG_IO, SG_ALERT, "Error opening channel communication layer." );
+        return false;
+    }
+
+    set_enabled( true );
+
+    return true;
+}
+
+// process work for this port
+bool FGNativeCtrls::process() {
+    SGIOChannel *io = get_io_channel();
+    int length;
+    char *buf;
+
+    if ( io->get_type() == sgDDSType ) {
+        buf = reinterpret_cast<char*>(&ctrls.dds);
+        length = sizeof(FG_DDS_Ctrls);
+    } else {
+        buf = reinterpret_cast<char*>(&ctrls.net);
+        length = sizeof(FGNetCtrls);
+    }
+
+    if ( get_direction() == SG_IO_OUT )
+    {
+        if ( io->get_type() == sgDDSType ) {
+            FGProps2Ctrls( globals->get_props(), &ctrls.dds, true, true );
+        } else {
+            FGProps2Ctrls( globals->get_props(), &ctrls.net, true, true );
+        }
+
+        if ( ! io->write( buf, length ) ) {
+            SG_LOG( SG_IO, SG_ALERT, "Error writing data." );
+            return false;
+        }
+    }
+    else if ( get_direction() == SG_IO_IN )
+    {
+        if ( io->get_type() == sgFileType ) {
+            if ( io->read( buf, length ) == length ) {
+                SG_LOG( SG_IO, SG_INFO, "Success reading data." );
+                FGCtrls2Props( globals->get_props(), &ctrls.net, true, true );
+            }
+        } else if ( io->get_type() == sgDDSType ) {
+            while ( io->read( buf, length ) == length ) {
+                SG_LOG( SG_IO, SG_INFO, "Success reading data." );
+                FGCtrls2Props( globals->get_props(), &ctrls.dds, true, true );
+            }
+        } else {
+            while ( io->read( buf, length ) == length ) {
+                SG_LOG( SG_IO, SG_INFO, "Success reading data." );
+                FGCtrls2Props( globals->get_props(), &ctrls.net, true, true );
+            }
+        }
+    }
+
+    return true;
+}
+
+// close the channel
+bool FGNativeCtrls::close() {
+    SGIOChannel *io = get_io_channel();
+
+    set_enabled( false );
+
+    if ( ! io->close() ) {
+        return false;
+    }
+
+    return true;
+}
+