1 // fg_init.cxx -- Flight Gear top level initialization routines
3 // Written by Curtis Olson, started August 1997.
5 // Copyright (C) 1997 Curtis L. Olson - http://www.flightgear.org/~curt
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
28 #include <simgear/compiler.h>
32 #include <string.h> // strcmp()
34 #if defined(SG_WINDOWS)
35 # include <io.h> // isatty()
36 # include <process.h> // _getpid()
38 # define isatty _isatty
40 // for open() and options
41 # include <sys/types.h>
42 # include <sys/stat.h>
48 #include <boost/algorithm/string/compare.hpp>
49 #include <boost/algorithm/string/predicate.hpp>
51 #include <osgViewer/Viewer>
53 #include <simgear/canvas/Canvas.hxx>
54 #include <simgear/constants.h>
55 #include <simgear/debug/logstream.hxx>
56 #include <simgear/structure/exception.hxx>
57 #include <simgear/structure/event_mgr.hxx>
58 #include <simgear/structure/SGPerfMon.hxx>
59 #include <simgear/misc/sg_path.hxx>
60 #include <simgear/misc/sg_dir.hxx>
61 #include <simgear/misc/sgstream.hxx>
62 #include <simgear/misc/strutils.hxx>
63 #include <simgear/props/props_io.hxx>
64 #include <simgear/scene/tsync/terrasync.hxx>
66 #include <simgear/scene/model/modellib.hxx>
67 #include <simgear/scene/material/matlib.hxx>
68 #include <simgear/scene/material/Effect.hxx>
69 #include <simgear/scene/model/particles.hxx>
70 #include <simgear/scene/tsync/terrasync.hxx>
72 #include <Aircraft/controls.hxx>
73 #include <Aircraft/replay.hxx>
74 #include <Aircraft/FlightHistory.hxx>
75 #include <Airports/runways.hxx>
76 #include <Airports/airport.hxx>
77 #include <Airports/dynamics.hxx>
79 #include <AIModel/AIManager.hxx>
81 #include <ATC/atc_mgr.hxx>
83 #include <Autopilot/route_mgr.hxx>
84 #include <Autopilot/autopilotgroup.hxx>
86 #include <Cockpit/panel.hxx>
87 #include <Cockpit/panel_io.hxx>
89 #include <Canvas/canvas_mgr.hxx>
90 #include <Canvas/gui_mgr.hxx>
91 #include <Canvas/FGCanvasSystemAdapter.hxx>
92 #include <GUI/new_gui.hxx>
93 #include <GUI/MessageBox.hxx>
94 #include <Input/input.hxx>
95 #include <Instrumentation/instrument_mgr.hxx>
96 #include <Model/acmodel.hxx>
97 #include <Model/modelmgr.hxx>
98 #include <AIModel/submodel.hxx>
99 #include <AIModel/AIManager.hxx>
100 #include <Navaids/navdb.hxx>
101 #include <Navaids/navlist.hxx>
102 #include <Scenery/scenery.hxx>
103 #include <Scenery/tilemgr.hxx>
104 #include <Scripting/NasalSys.hxx>
105 #include <Sound/voice.hxx>
106 #include <Sound/soundmanager.hxx>
107 #include <Systems/system_mgr.hxx>
108 #include <Time/light.hxx>
109 #include <Time/TimeManager.hxx>
111 #include <Traffic/TrafficMgr.hxx>
112 #include <MultiPlayer/multiplaymgr.hxx>
113 #include <FDM/fdm_shell.hxx>
114 #include <Environment/ephemeris.hxx>
115 #include <Environment/environment_mgr.hxx>
116 #include <Viewer/renderer.hxx>
117 #include <Viewer/viewmgr.hxx>
118 #include <Viewer/FGEventHandler.hxx>
119 #include <Navaids/NavDataCache.hxx>
120 #include <Instrumentation/HUD/HUD.hxx>
121 #include <Cockpit/cockpitDisplayManager.hxx>
122 #include <Network/HTTPClient.hxx>
123 #include <Network/fgcom.hxx>
124 #include <Network/http/httpd.hxx>
126 #include <Viewer/CameraGroup.hxx>
128 #include "fg_init.hxx"
130 #include "fg_commands.hxx"
131 #include "fg_props.hxx"
132 #include "FGInterpolator.hxx"
133 #include "options.hxx"
134 #include "globals.hxx"
135 #include "logger.hxx"
137 #include "positioninit.hxx"
139 #include "AircraftDirVisitorBase.hxx"
142 #include <GUI/CocoaHelpers.h> // for Mac impl of platformDefaultDataPath()
151 using namespace boost::algorithm;
153 extern osg::ref_ptr<osgViewer::Viewer> viewer;
155 // Return the current base package version
156 string fgBasePackageVersion() {
157 SGPath base_path( globals->get_fg_root() );
158 base_path.append("version");
159 if (!base_path.exists()) {
163 sg_gzifstream in( base_path.str() );
174 class FindAndCacheAircraft : public AircraftDirVistorBase
177 FindAndCacheAircraft(SGPropertyNode* autoSave)
179 _cache = autoSave->getNode("sim/startup/path-cache", true);
184 std::string aircraft = fgGetString( "/sim/aircraft", "");
185 if (aircraft.empty()) {
186 flightgear::fatalMessageBox("No aircraft", "No aircraft was specified");
187 SG_LOG(SG_GENERAL, SG_ALERT, "no aircraft specified");
191 _searchAircraft = aircraft + "-set.xml";
192 std::string aircraftDir = fgGetString("/sim/aircraft-dir", "");
193 if (!aircraftDir.empty()) {
194 // aircraft-dir was set, skip any searching at all, if it's valid
195 simgear::Dir acPath(aircraftDir);
196 SGPath setFile = acPath.file(_searchAircraft);
197 if (setFile.exists()) {
198 SG_LOG(SG_GENERAL, SG_INFO, "found aircraft in dir: " << aircraftDir );
201 readProperties(setFile.str(), globals->get_props());
202 } catch ( const sg_exception &e ) {
203 SG_LOG(SG_INPUT, SG_ALERT, "Error reading aircraft: " << e.getFormattedMessage());
204 flightgear::fatalMessageBox("Error reading aircraft",
205 "An error occured reading the requested aircraft (" + aircraft + ")",
206 e.getFormattedMessage());
212 SG_LOG(SG_GENERAL, SG_ALERT, "aircraft '" << _searchAircraft <<
213 "' not found in specified dir:" << aircraftDir);
214 flightgear::fatalMessageBox("Aircraft not found",
215 "The requested aircraft '" + aircraft + "' could not be found in the specified location.",
222 // prepare cache for re-scan
223 SGPropertyNode *n = _cache->getNode("fg-root", true);
224 n->setStringValue(globals->get_fg_root().c_str());
225 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
226 n = _cache->getNode("fg-aircraft", true);
227 n->setStringValue(getAircraftPaths().c_str());
228 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
229 _cache->removeChildren("aircraft");
231 visitAircraftPaths();
234 if (_foundPath.str().empty()) {
235 SG_LOG(SG_GENERAL, SG_ALERT, "Cannot find specified aircraft: " << aircraft );
236 flightgear::fatalMessageBox("Aircraft not found",
237 "The requested aircraft '" + aircraft + "' could not be found in any of the search paths");
242 SG_LOG(SG_GENERAL, SG_INFO, "Loading aircraft -set file from:" << _foundPath.str());
243 fgSetString( "/sim/aircraft-dir", _foundPath.dir().c_str());
244 if (!_foundPath.exists()) {
245 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to find -set file:" << _foundPath.str());
250 readProperties(_foundPath.str(), globals->get_props());
251 } catch ( const sg_exception &e ) {
252 SG_LOG(SG_INPUT, SG_ALERT, "Error reading aircraft: " << e.getFormattedMessage());
253 flightgear::fatalMessageBox("Error reading aircraft",
254 "An error occured reading the requested aircraft (" + aircraft + ")",
255 e.getFormattedMessage());
263 SGPath getAircraftPaths() {
264 string_list pathList = globals->get_aircraft_paths();
265 SGPath aircraftPaths;
266 string_list::const_iterator it = pathList.begin();
267 if (it != pathList.end()) {
268 aircraftPaths.set(*it);
271 for (; it != pathList.end(); ++it) {
272 aircraftPaths.add(*it);
274 return aircraftPaths;
279 if (globals->get_fg_root() != _cache->getStringValue("fg-root", "")) {
280 return false; // cache mismatch
283 if (getAircraftPaths().str() != _cache->getStringValue("fg-aircraft", "")) {
284 return false; // cache mismatch
287 vector<SGPropertyNode_ptr> cache = _cache->getChildren("aircraft");
288 for (unsigned int i = 0; i < cache.size(); i++) {
289 const char *name = cache[i]->getStringValue("file", "");
290 if (!boost::equals(_searchAircraft, name, is_iequal())) {
294 SGPath xml(cache[i]->getStringValue("path", ""));
302 } // of aircraft in cache iteration
307 virtual VisitResult visit(const SGPath& p)
312 if (!_cache->getChild("aircraft", i++, false))
316 SGPropertyNode *n, *entry = _cache->getChild("aircraft", --i, true);
318 std::string fileName(p.file());
319 n = entry->getNode("file", true);
320 n->setStringValue(fileName);
321 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
323 n = entry->getNode("path", true);
324 n->setStringValue(p.dir());
325 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
327 if ( boost::equals(fileName, _searchAircraft.c_str(), is_iequal()) ) {
332 return VISIT_CONTINUE;
335 std::string _searchAircraft;
337 SGPropertyNode* _cache;
341 static SGPath platformDefaultDataPath()
343 char *envp = ::getenv( "APPDATA" );
344 SGPath config( envp );
345 config.append( "flightgear.org" );
349 #elif defined(SG_MAC)
351 // platformDefaultDataPath defined in GUI/CocoaHelpers.h
354 static SGPath platformDefaultDataPath()
356 return SGPath::home() / ".fgfs";
362 SGPath dataPath = SGPath::fromEnv("FG_HOME", platformDefaultDataPath());
363 globals->set_fg_home(dataPath.c_str());
365 simgear::Dir fgHome(dataPath);
366 if (!fgHome.exists()) {
370 if (!fgHome.exists()) {
371 flightgear::fatalMessageBox("Problem setting up user data",
372 "Unable to create the user-data storage folder at: '"
373 + dataPath.str() + "'");
377 if (fgGetBool("/sim/fghome-readonly", false)) {
378 // user / config forced us into readonly mode, fine
379 SG_LOG(SG_GENERAL, SG_INFO, "Running with FG_HOME readonly");
383 // write our PID, and check writeability
384 SGPath pidPath(dataPath, "fgfs.pid");
385 if (pidPath.exists()) {
386 SG_LOG(SG_GENERAL, SG_INFO, "flightgear instance already running, switching to FG_HOME read-only.");
387 // set a marker property so terrasync/navcache don't try to write
388 // from secondary instances
389 fgSetBool("/sim/fghome-readonly", true);
395 #if defined(SG_WINDOWS)
396 size_t len = snprintf(buf, 16, "%d", _getpid());
398 HANDLE f = CreateFileA(pidPath.c_str(), GENERIC_READ | GENERIC_WRITE,
399 FILE_SHARE_READ, /* sharing */
400 NULL, /* security attributes */
401 CREATE_NEW, /* error if already exists */
402 FILE_FLAG_DELETE_ON_CLOSE,
403 NULL /* template */);
405 result = (f != INVALID_HANDLE_VALUE);
408 WriteFile(f, buf, len, &written, NULL /* overlapped */);
411 // POSIX, do open+unlink trick to the file is deleted on exit, even if we
413 ssize_t len = snprintf(buf, 16, "%d", getpid());
414 int fd = ::open(pidPath.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0644);
416 result = ::write(fd, buf, len) == len;
417 if( ::unlink(pidPath.c_str()) != 0 ) // delete file when app quits
422 fgSetBool("/sim/fghome-readonly", false);
425 flightgear::fatalMessageBox("File permissions problem",
426 "Can't write to user-data storage folder, check file permissions and FG_HOME.",
427 "User-data at:" + dataPath.str());
432 // Read in configuration (file and command line)
433 int fgInitConfig ( int argc, char **argv, bool reinit )
435 SGPath dataPath = globals->get_fg_home();
437 simgear::Dir exportDir(simgear::Dir(dataPath).file("Export"));
438 if (!exportDir.exists()) {
439 exportDir.create(0755);
442 // Set /sim/fg-home and don't allow malign code to override it until
443 // Nasal security is set up. Use FG_HOME if necessary.
444 SGPropertyNode *home = fgGetNode("/sim", true);
445 home->removeChild("fg-home", 0);
446 home = home->getChild("fg-home", 0, true);
447 home->setStringValue(dataPath.c_str());
448 home->setAttribute(SGPropertyNode::WRITE, false);
451 flightgear::Options* options = flightgear::Options::sharedInstance();
453 options->init(argc, argv, dataPath);
456 bool loadDefaults = options->shouldLoadDefaultConfig();
458 // Read global preferences from $FG_ROOT/preferences.xml
459 SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
460 fgLoadProps("preferences.xml", globals->get_props());
461 SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
463 // do not load user settings when reset to default is requested, or if
464 // told to explicitly ignore
465 if (options->isOptionSet("restore-defaults") || options->isOptionSet("ignore-autosave"))
467 SG_LOG(SG_ALL, SG_ALERT, "Ignoring user settings. Restoring defaults.");
471 globals->loadUserSettings(dataPath);
474 SG_LOG(SG_GENERAL, SG_INFO, "not reading default configuration files");
475 }// of no-default-config selected
477 return flightgear::FG_OPTIONS_OK;
480 int fgInitAircraft(bool reinit)
482 // Scan user config files and command line for a specified aircraft.
484 SGPropertyNode* sim = fgGetNode("/sim", true);
485 sim->removeChildren("fg-aircraft");
486 // after reset, add aircraft dirs to props, neede for Nasal IO rules
487 string_list::const_iterator it;
489 for (it = globals->get_aircraft_paths().begin();
490 it != globals->get_aircraft_paths().end(); ++it, ++index)
492 SGPropertyNode* n = sim->getChild("fg-aircraft", index, true);
493 n->setStringValue(*it);
494 n->setAttribute(SGPropertyNode::WRITE, false);
498 flightgear::Options::sharedInstance()->initAircraft();
501 FindAndCacheAircraft f(globals->get_props());
502 if (!f.loadAircraft()) {
503 return flightgear::FG_OPTIONS_ERROR;
506 return flightgear::FG_OPTIONS_OK;
510 * Initialize vor/ndb/ils/fix list management and query systems (as
511 * well as simple airport db list)
512 * This is called multiple times in the case of a cache rebuild,
513 * to allow lengthy caching to take place in the background, without
514 * blocking the main/UI thread.
519 flightgear::NavDataCache* cache = flightgear::NavDataCache::instance();
520 static bool doingRebuild = false;
521 if (doingRebuild || cache->isRebuildRequired()) {
523 bool finished = cache->rebuild();
525 // sleep to give the rebuild thread more time
526 SGTimeStamp::sleepForMSec(50);
531 FGTACANList *channellist = new FGTACANList;
532 globals->set_channellist( channellist );
534 SGPath path(globals->get_fg_root());
535 path.append( "Navaids/TACAN_freq.dat" );
536 flightgear::loadTacan(path, channellist);
541 // General house keeping initializations
542 bool fgInitGeneral() {
545 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
546 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
548 root = globals->get_fg_root();
549 if ( ! root.length() ) {
550 // No root path set? Then bail ...
551 SG_LOG( SG_GENERAL, SG_ALERT,
552 "Cannot continue without a path to the base package "
553 << "being defined." );
556 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
558 // Note: browser command is hard-coded for Mac/Windows, so this only affects other platforms
559 globals->set_browser(fgGetString("/sim/startup/browser-app", WEB_BROWSER));
560 fgSetString("/sim/startup/browser-app", globals->get_browser());
562 simgear::Dir cwd(simgear::Dir::current());
563 SGPropertyNode *curr = fgGetNode("/sim", true);
564 curr->removeChild("fg-current", 0);
565 curr = curr->getChild("fg-current", 0, true);
566 curr->setStringValue(cwd.path().str());
567 curr->setAttribute(SGPropertyNode::WRITE, false);
569 fgSetBool("/sim/startup/stdout-to-terminal", isatty(1) != 0 );
570 fgSetBool("/sim/startup/stderr-to-terminal", isatty(2) != 0 );
574 // Write various configuraton values out to the logs
575 void fgOutputSettings()
577 SG_LOG( SG_GENERAL, SG_INFO, "Configuration State" );
578 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
580 SG_LOG( SG_GENERAL, SG_INFO, "aircraft-dir = " << '"' << fgGetString("/sim/aircraft-dir") << '"' );
581 SG_LOG( SG_GENERAL, SG_INFO, "fghome-dir = " << '"' << globals->get_fg_home() << '"');
582 SG_LOG( SG_GENERAL, SG_INFO, "aircraft-dir = " << '"' << fgGetString("/sim/aircraft-dir") << '"');
584 SG_LOG( SG_GENERAL, SG_INFO, "aircraft-search-paths = \n\t" << simgear::strutils::join(globals->get_aircraft_paths(), "\n\t") );
585 SG_LOG( SG_GENERAL, SG_INFO, "scenery-search-paths = \n\t" << simgear::strutils::join(globals->get_fg_scenery(), "\n\t") );
588 // This is the top level init routine which calls all the other
589 // initialization routines. If you are adding a subsystem to flight
590 // gear, its initialization call should located in this routine.
591 // Returns non-zero if a problem encountered.
592 void fgCreateSubsystems(bool duringReset) {
594 SG_LOG( SG_GENERAL, SG_INFO, "Creating Subsystems");
595 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
597 ////////////////////////////////////////////////////////////////////
598 // Initialize the sound subsystem.
599 ////////////////////////////////////////////////////////////////////
600 // Sound manager uses an own subsystem group "SOUND" which is the last
601 // to be updated in every loop.
602 // Sound manager is updated last so it can use the CPU while the GPU
603 // is processing the scenery (doubled the frame-rate for me) -EMH-
604 globals->add_subsystem("sound", new FGSoundManager, SGSubsystemMgr::SOUND);
606 ////////////////////////////////////////////////////////////////////
607 // Initialize the event manager subsystem.
608 ////////////////////////////////////////////////////////////////////
610 globals->get_event_mgr()->init();
611 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
613 ////////////////////////////////////////////////////////////////////
614 // Initialize the property interpolator subsystem. Put into the INIT
615 // group because the "nasal" subsystem may need it at GENERAL take-down.
616 ////////////////////////////////////////////////////////////////////
617 FGInterpolator* interp = new FGInterpolator;
618 interp->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
619 globals->add_subsystem("prop-interpolator", interp, SGSubsystemMgr::INIT);
620 SGPropertyNode::setInterpolationMgr(interp);
622 ////////////////////////////////////////////////////////////////////
623 // Add the FlightGear property utilities.
624 ////////////////////////////////////////////////////////////////////
625 globals->add_subsystem("properties", new FGProperties);
628 ////////////////////////////////////////////////////////////////////
629 // Add the performance monitoring system.
630 ////////////////////////////////////////////////////////////////////
631 globals->add_subsystem("performance-mon",
632 new SGPerformanceMonitor(globals->get_subsystem_mgr(),
633 fgGetNode("/sim/performance-monitor", true)));
635 ////////////////////////////////////////////////////////////////////
636 // Initialize the material property subsystem.
637 ////////////////////////////////////////////////////////////////////
639 SGPath mpath( globals->get_fg_root() );
640 mpath.append( fgGetString("/sim/rendering/materials-file") );
641 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(),
642 globals->get_props()) ) {
643 throw sg_io_exception("Error loading materials file", mpath);
646 globals->add_subsystem( "http", new FGHTTPClient );
648 ////////////////////////////////////////////////////////////////////
649 // Initialize the scenery management subsystem.
650 ////////////////////////////////////////////////////////////////////
652 globals->get_scenery()->get_scene_graph()
653 ->addChild(simgear::Particles::getCommonRoot());
654 simgear::GlobalParticleCallback::setSwitch(fgGetNode("/sim/rendering/particles", true));
656 ////////////////////////////////////////////////////////////////////
657 // Initialize the flight model subsystem.
658 ////////////////////////////////////////////////////////////////////
660 globals->add_subsystem("flight", new FDMShell, SGSubsystemMgr::FDM);
662 ////////////////////////////////////////////////////////////////////
663 // Initialize the weather subsystem.
664 ////////////////////////////////////////////////////////////////////
666 // Initialize the weather modeling subsystem
667 globals->add_subsystem("environment", new FGEnvironmentMgr);
668 globals->add_subsystem("ephemeris", new Ephemeris);
670 ////////////////////////////////////////////////////////////////////
671 // Initialize the aircraft systems and instrumentation (before the
673 ////////////////////////////////////////////////////////////////////
675 globals->add_subsystem("systems", new FGSystemMgr, SGSubsystemMgr::FDM);
676 globals->add_subsystem("instrumentation", new FGInstrumentMgr, SGSubsystemMgr::FDM);
677 globals->add_subsystem("hud", new HUD, SGSubsystemMgr::DISPLAY);
678 globals->add_subsystem("cockpit-displays", new flightgear::CockpitDisplayManager, SGSubsystemMgr::DISPLAY);
680 ////////////////////////////////////////////////////////////////////
681 // Initialize the XML Autopilot subsystem.
682 ////////////////////////////////////////////////////////////////////
684 globals->add_subsystem( "xml-autopilot", FGXMLAutopilotGroup::createInstance("autopilot"), SGSubsystemMgr::FDM );
685 globals->add_subsystem( "xml-proprules", FGXMLAutopilotGroup::createInstance("property-rule"), SGSubsystemMgr::GENERAL );
686 globals->add_subsystem( "route-manager", new FGRouteMgr );
688 ////////////////////////////////////////////////////////////////////
689 // Initialize the Input-Output subsystem
690 ////////////////////////////////////////////////////////////////////
691 globals->add_subsystem( "io", new FGIO );
693 ////////////////////////////////////////////////////////////////////
694 // Create and register the logger.
695 ////////////////////////////////////////////////////////////////////
697 globals->add_subsystem("logger", new FGLogger);
699 ////////////////////////////////////////////////////////////////////
700 // Create and register the XML GUI.
701 ////////////////////////////////////////////////////////////////////
703 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
705 //////////////////////////////////////////////////////////////////////
706 // Initialize the 2D cloud subsystem.
707 ////////////////////////////////////////////////////////////////////
708 fgGetBool("/sim/rendering/bump-mapping", false);
710 ////////////////////////////////////////////////////////////////////
711 // Initialize the canvas 2d drawing subsystem.
712 ////////////////////////////////////////////////////////////////////
713 simgear::canvas::Canvas::setSystemAdapter(
714 simgear::canvas::SystemAdapterPtr(new canvas::FGCanvasSystemAdapter)
716 globals->add_subsystem("Canvas", new CanvasMgr, SGSubsystemMgr::DISPLAY);
717 globals->add_subsystem("CanvasGUI", new GUIMgr, SGSubsystemMgr::DISPLAY);
719 ////////////////////////////////////////////////////////////////////
720 // Initialize the ATC subsystem
721 ////////////////////////////////////////////////////////////////////
722 globals->add_subsystem("ATC", new FGATCManager, SGSubsystemMgr::POST_FDM);
724 ////////////////////////////////////////////////////////////////////
725 // Initialize multiplayer subsystem
726 ////////////////////////////////////////////////////////////////////
728 globals->add_subsystem("mp", new FGMultiplayMgr, SGSubsystemMgr::POST_FDM);
730 ////////////////////////////////////////////////////////////////////
731 // Initialise the AI Model Manager
732 ////////////////////////////////////////////////////////////////////
733 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
734 globals->add_subsystem("ai-model", new FGAIManager, SGSubsystemMgr::POST_FDM);
735 globals->add_subsystem("submodel-mgr", new FGSubmodelMgr, SGSubsystemMgr::POST_FDM);
738 // It's probably a good idea to initialize the top level traffic manager
739 // After the AI and ATC systems have been initialized properly.
740 // AI Traffic manager
741 globals->add_subsystem("traffic-manager", new FGTrafficManager, SGSubsystemMgr::POST_FDM);
743 ////////////////////////////////////////////////////////////////////
744 // Add a new 2D panel.
745 ////////////////////////////////////////////////////////////////////
747 fgSetArchivable("/sim/panel/visibility");
748 fgSetArchivable("/sim/panel/x-offset");
749 fgSetArchivable("/sim/panel/y-offset");
750 fgSetArchivable("/sim/panel/jitter");
752 ////////////////////////////////////////////////////////////////////
753 // Initialize the controls subsystem.
754 ////////////////////////////////////////////////////////////////////
756 globals->add_subsystem("controls", new FGControls, SGSubsystemMgr::GENERAL);
758 ////////////////////////////////////////////////////////////////////
759 // Initialize the input subsystem.
760 ////////////////////////////////////////////////////////////////////
762 globals->add_subsystem("input", new FGInput, SGSubsystemMgr::GENERAL);
765 ////////////////////////////////////////////////////////////////////
766 // Initialize the replay subsystem
767 ////////////////////////////////////////////////////////////////////
768 globals->add_subsystem("replay", new FGReplay);
769 globals->add_subsystem("history", new FGFlightHistory);
771 #ifdef ENABLE_AUDIO_SUPPORT
772 ////////////////////////////////////////////////////////////////////
773 // Initialize the sound-effects subsystem.
774 ////////////////////////////////////////////////////////////////////
775 globals->add_subsystem("voice", new FGVoiceMgr, SGSubsystemMgr::DISPLAY);
779 ////////////////////////////////////////////////////////////////////
780 // Initialize the FGCom subsystem.
781 ////////////////////////////////////////////////////////////////////
782 globals->add_subsystem("fgcom", new FGCom);
786 SGSubsystem * httpd = flightgear::http::FGHttpd::createInstance( fgGetNode(flightgear::http::PROPERTY_ROOT) );
788 globals->add_subsystem("httpd", httpd );
791 ////////////////////////////////////////////////////////////////////
792 // Initialize the lighting subsystem.
793 ////////////////////////////////////////////////////////////////////
795 // ordering here is important : Nasal (via events), then models, then views
797 globals->add_subsystem("lighting", new FGLight, SGSubsystemMgr::DISPLAY);
798 globals->add_subsystem("events", globals->get_event_mgr(), SGSubsystemMgr::DISPLAY);
801 globals->add_subsystem("aircraft-model", new FGAircraftModel, SGSubsystemMgr::DISPLAY);
802 globals->add_subsystem("model-manager", new FGModelMgr, SGSubsystemMgr::DISPLAY);
804 globals->add_subsystem("view-manager", new FGViewMgr, SGSubsystemMgr::DISPLAY);
806 globals->add_subsystem("tile-manager", globals->get_tile_mgr(),
807 SGSubsystemMgr::DISPLAY);
810 void fgPostInitSubsystems()
815 ////////////////////////////////////////////////////////////////////////
816 // Initialize the Nasal interpreter.
817 // Do this last, so that the loaded scripts see initialized state
818 ////////////////////////////////////////////////////////////////////////
819 FGNasalSys* nasal = new FGNasalSys();
820 globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
822 SG_LOG(SG_GENERAL, SG_INFO, "Nasal init took:" << st.elapsedMSec());
824 // Ensure IOrules and path validation are working properly by trying to
825 // access a folder/file which should never be accessible.
826 const char* no_access_path =
832 if( fgValidatePath(no_access_path, true) )
837 "Check your IOrules! (write to '" << no_access_path << "' is allowed)"
839 if( fgValidatePath(no_access_path, false) )
844 "Check your IOrules! (read from '" << no_access_path << "' is allowed)"
847 // initialize methods that depend on other subsystems.
849 globals->get_subsystem_mgr()->postinit();
850 SG_LOG(SG_GENERAL, SG_INFO, "Subsystems postinit took:" << st.elapsedMSec());
852 ////////////////////////////////////////////////////////////////////////
853 // End of subsystem initialization.
854 ////////////////////////////////////////////////////////////////////
856 fgSetBool("/sim/crashed", false);
857 fgSetBool("/sim/initialized", true);
859 SG_LOG( SG_GENERAL, SG_INFO, endl);
862 // re-position is a simplified version of the traditional (legacy)
863 // reset procedure. We only need to poke systems which will be upset by
864 // a sudden change in aircraft position. Since this potentially includes
865 // Nasal, we trigger the 'reinit' signal.
866 void fgStartReposition()
868 SGPropertyNode *master_freeze = fgGetNode("/sim/freeze/master");
869 SG_LOG( SG_GENERAL, SG_INFO, "fgStartReposition()");
871 // ensure we are frozen
872 bool freeze = master_freeze->getBoolValue();
874 master_freeze->setBoolValue(true);
877 // set this signal so Nasal scripts can take action.
878 fgSetBool("/sim/signals/reinit", true);
879 fgSetBool("/sim/crashed", false);
881 FDMShell* fdm = static_cast<FDMShell*>(globals->get_subsystem("flight"));
884 // update our position based on current presets
885 // this will mark position as needed finalized which we'll do in the
887 flightgear::initPosition();
889 simgear::SGTerraSync* terraSync =
890 static_cast<simgear::SGTerraSync*>(globals->get_subsystem("terrasync"));
892 terraSync->reposition();
895 // Initialize the FDM
896 globals->get_subsystem("flight")->reinit();
898 // reset replay buffers
899 globals->get_subsystem("replay")->reinit();
901 // ugly: finalizePosition waits for METAR to arrive for the new airport.
902 // we don't re-init the environment manager here, since historically we did
903 // not, and doing so seems to have other issues. All that's needed is to
904 // schedule METAR fetch immediately, so it's available for finalizePosition.
905 // So we manually extract the METAR-fetching component inside the environment
906 // manager, and re-init that.
907 SGSubsystemGroup* envMgr = static_cast<SGSubsystemGroup*>(globals->get_subsystem("environment"));
909 envMgr->get_subsystem("realwx")->reinit();
912 // need to bind FDMshell again, since we manually unbound it above...
915 // need to reset aircraft (systems/instruments/autopilot)
916 // so they can adapt to current environment
917 globals->get_subsystem("systems")->reinit();
918 globals->get_subsystem("instrumentation")->reinit();
919 globals->get_subsystem("xml-autopilot")->reinit();
921 // setup state to end re-init
922 fgSetBool("/sim/signals/reinit", false);
924 master_freeze->setBoolValue(false);
926 fgSetBool("/sim/sceneryloaded",false);
929 void fgStartNewReset()
931 SGPropertyNode_ptr preserved(new SGPropertyNode);
933 if (!copyPropertiesWithAttribute(globals->get_props(), preserved, SGPropertyNode::PRESERVE))
934 SG_LOG(SG_GENERAL, SG_ALERT, "Error saving preserved state");
936 fgSetBool("/sim/signals/reinit", true);
937 fgSetBool("/sim/freeze/master", true);
939 SGSubsystemMgr* subsystemManger = globals->get_subsystem_mgr();
940 // Nasal is manually inited in fgPostInit, ensure it's already shutdown
941 // before other subsystems, so Nasal listeners don't fire during shutdonw
942 SGSubsystem* nasal = subsystemManger->get_subsystem("nasal");
945 subsystemManger->remove("nasal");
947 subsystemManger->shutdown();
948 subsystemManger->unbind();
950 // remove most subsystems, with a few exceptions.
951 for (int g=0; g<SGSubsystemMgr::MAX_GROUPS; ++g) {
952 SGSubsystemGroup* grp = subsystemManger->get_group(static_cast<SGSubsystemMgr::GroupType>(g));
953 const string_list& names(grp->member_names());
954 string_list::const_iterator it;
955 for (it = names.begin(); it != names.end(); ++it) {
956 if ((*it == "time") || (*it == "terrasync") || (*it == "events")
957 || (*it == "lighting"))
963 subsystemManger->remove(it->c_str());
964 } catch (std::exception& e) {
965 SG_LOG(SG_GENERAL, SG_INFO, "caught std::exception shutting down:" << *it);
967 SG_LOG(SG_GENERAL, SG_INFO, "caught generic exception shutting down:" << *it);
970 // don't delete here, dropping the ref should be sufficient
972 } // of top-level groups iteration
974 // order is important here since tile-manager shutdown needs to
975 // access the scenery object
976 globals->set_tile_mgr(NULL);
977 globals->set_scenery(NULL);
978 flightgear::CameraGroup::setDefault(NULL);
980 FGRenderer* render = globals->get_renderer();
981 // don't cancel the pager until after shutdown, since AIModels (and
982 // potentially others) can queue delete requests on the pager.
983 render->getViewer()->getDatabasePager()->cancel();
984 render->getViewer()->getDatabasePager()->clear();
986 osgDB::Registry::instance()->clearObjectCache();
988 // preserve the event handler; re-creating it would entail fixing the
990 osg::ref_ptr<flightgear::FGEventHandler> eventHandler = render->getEventHandler();
992 globals->set_renderer(NULL);
993 globals->set_matlib(NULL);
994 globals->set_chatter_queue(NULL);
996 simgear::clearEffectCache();
997 simgear::SGModelLib::resetPropertyRoot();
999 simgear::GlobalParticleCallback::setSwitch(NULL);
1001 globals->resetPropertyRoot();
1002 fgInitConfig(0, NULL, true);
1003 fgInitGeneral(); // all of this?
1005 if ( copyProperties(preserved, globals->get_props()) ) {
1006 SG_LOG( SG_GENERAL, SG_INFO, "Preserved state restored successfully" );
1008 SG_LOG( SG_GENERAL, SG_INFO,
1009 "Some errors restoring preserved state (read-only props?)" );
1012 fgGetNode("/sim")->removeChild("aircraft-dir");
1013 fgInitAircraft(true);
1014 flightgear::Options::sharedInstance()->processOptions();
1016 render = new FGRenderer;
1017 render->setEventHandler(eventHandler);
1018 globals->set_renderer(render);
1020 render->setViewer(viewer.get());
1022 viewer->getDatabasePager()->setUpThreads(1, 1);
1024 // must do this before splashinit for Rembrandt
1025 flightgear::CameraGroup::buildDefaultGroup(viewer.get());
1026 render->splashinit();
1028 fgOSResetProperties();
1030 // init some things manually
1031 // which do not follow the regular init pattern
1033 globals->get_event_mgr()->init();
1034 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1036 globals->set_matlib( new SGMaterialLib );
1038 // terra-sync needs the property tree root, pass it back in
1039 simgear::SGTerraSync* terra_sync = static_cast<simgear::SGTerraSync*>(subsystemManger->get_subsystem("terrasync"));
1040 terra_sync->setRoot(globals->get_props());
1042 fgSetBool("/sim/signals/reinit", false);
1043 fgSetBool("/sim/freeze/master", false);
1044 fgSetBool("/sim/sceneryloaded",false);