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flightgear/src/Main/main.cxx
James Turner 788d6ab666 Attempt to catch exceptions during subsystem creation. 
Part of isolating location of ‘random fatal exception on startup’
issues.
2021-06-24 15:26:47 +01:00

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// main.cxx -- top level sim routines
//
// Written by Curtis Olson, started May 1997.
//
// Copyright (C) 1997 - 2002 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.
//
// $Id$
#include <config.h>
#include <simgear/compiler.h>
#include <simgear/props/props_io.hxx>
#include <iostream>
#include <osg/Camera>
#include <osg/GraphicsContext>
#include <osgDB/Registry>
// Class references
#include <simgear/canvas/VGInitOperation.hxx>
#include <simgear/debug/logdelta.hxx>
#include <simgear/emesary/Emesary.hxx>
#include <simgear/emesary/notifications.hxx>
#include <simgear/io/raw_socket.hxx>
#include <simgear/math/SGMath.hxx>
#include <simgear/math/sg_random.hxx>
#include <simgear/misc/strutils.hxx>
#include <simgear/nasal/NasalEmesaryInterface.hxx>
#include <simgear/props/AtomicChangeListener.hxx>
#include <simgear/props/props.hxx>
#include <simgear/scene/material/Effect.hxx>
#include <simgear/scene/material/matlib.hxx>
#include <simgear/scene/model/modellib.hxx>
#include <simgear/scene/tsync/terrasync.hxx>
#include <simgear/structure/commands.hxx>
#include <simgear/timing/sg_time.hxx>
#include <Add-ons/AddonManager.hxx>
#include <GUI/MessageBox.hxx>
#include <GUI/gui.h>
#include <Main/locale.hxx>
#include <Model/panelnode.hxx>
#include <Navaids/NavDataCache.hxx>
#include <Scenery/scenery.hxx>
#include <Sound/soundmanager.hxx>
#include <Time/TimeManager.hxx>
#include <Viewer/GraphicsPresets.hxx>
#include <Viewer/WindowSystemAdapter.hxx>
#include <Viewer/renderer.hxx>
#include <Viewer/splash.hxx>
#include <flightgearBuildId.h>
#include "fg_commands.hxx"
#include "fg_init.hxx"
#include "fg_io.hxx"
#include "fg_os.hxx"
#include "fg_props.hxx"
#include "main.hxx"
#include "options.hxx"
#include "positioninit.hxx"
#include "screensaver_control.hxx"
#include "subsystemFactory.hxx"
#include "util.hxx"
#include <Main/ErrorReporter.hxx>
#include <Main/sentryIntegration.hxx>
#include <simgear/embedded_resources/EmbeddedResourceManager.hxx>
#include <EmbeddedResources/FlightGear-resources.hxx>
#if defined(HAVE_QT)
#include <GUI/QtLauncher.hxx>
#endif
#ifdef __OpenBSD__
#include <sys/resource.h>
#endif
using namespace flightgear;
using std::cerr;
using std::vector;
// The atexit() function handler should know when the graphical subsystem
// is initialized.
extern int _bootstrap_OSInit;
static SGPropertyNode_ptr frame_signal;
static SGPropertyNode_ptr nasal_gc_threaded;
static SGPropertyNode_ptr nasal_gc_threaded_wait;
#ifdef NASAL_BACKGROUND_GC_THREAD
extern "C" {
extern void startNasalBackgroundGarbageCollection();
extern void stopNasalBackgroundGarbageCollection();
extern void performNasalBackgroundGarbageCollection();
extern void awaitNasalGarbageCollectionComplete(bool can_wait);
}
#endif
static SGSharedPtr<simgear::Notifications::MainLoopNotification> mln_begin(new simgear::Notifications::MainLoopNotification(simgear::Notifications::MainLoopNotification::Type::Begin));
static SGSharedPtr<simgear::Notifications::MainLoopNotification> mln_end(new simgear::Notifications::MainLoopNotification(simgear::Notifications::MainLoopNotification::Type::End));
static SGSharedPtr<simgear::Notifications::MainLoopNotification> mln_started(new simgear::Notifications::MainLoopNotification(simgear::Notifications::MainLoopNotification::Type::Started));
static SGSharedPtr<simgear::Notifications::MainLoopNotification> mln_stopped(new simgear::Notifications::MainLoopNotification(simgear::Notifications::MainLoopNotification::Type::Stopped));
static SGSharedPtr<simgear::Notifications::NasalGarbageCollectionConfigurationNotification> ngccn;
// This method is usually called after OSG has finished rendering a frame in what OSG calls an idle handler and
// is reposonsible for invoking all of the relevant per frame processing; most of which is handled by subsystems.
static void fgMainLoop( void )
{
//
// the Nasal GC will automatically run when (during allocation) it discovers that more space is needed.
// This has a cost of between 5ms and 50ms (depending on the amount of currently active Nasal).
// The result is unscheduled and unpredictable pauses during normal operation when the garbage collector
// runs; which typically occurs at intervals between 1sec and 20sec.
//
// The solution to this, which overall increases CPU load, is to use a thread to do this; as Nasal is thread safe
// so what we do is to launch the garbage collection at the end of the main loop and then wait for completion at the start of the
// next main loop.
// So although the overall CPU is increased it has little effect on the frame rate; if anything it is an overall benefit
// as there are no unscheduled long duration frames.
//
// The implementation appears to work fine without waiting for completion at the start of the frame - so
// this wait at the start can be disabled by setting the property /sim/nasal-gc-threaded-wait to false.
// first we see if the config has changed. The notification will return true from SetActive/SetWait when the
// value has been changed - and thus we notify the Nasal system that it should configure itself accordingly.
auto use_threaded_gc = nasal_gc_threaded->getBoolValue();
auto threaded_wait = nasal_gc_threaded_wait->getBoolValue();
bool notify_gc_config = false;
notify_gc_config = ngccn->SetActive(use_threaded_gc);
notify_gc_config |= ngccn->SetWait(threaded_wait);
if (notify_gc_config)
simgear::Emesary::GlobalTransmitter::instance()->NotifyAll(ngccn);
simgear::Emesary::GlobalTransmitter::instance()->NotifyAll(mln_begin);
if (sglog().has_popup()) {
std::string s = sglog().get_popup();
flightgear::modalMessageBox("Alert", s, "");
}
frame_signal->fireValueChanged();
auto timeManager = globals->get_subsystem<TimeManager>();
// compute simulated time (allowing for pause, warp, etc) and
// real elapsed time
double sim_dt, real_dt;
timeManager->computeTimeDeltas(sim_dt, real_dt);
// update all subsystems
globals->get_subsystem_mgr()->update(sim_dt);
// flush commands waiting in the queue
SGCommandMgr::instance()->executedQueuedCommands();
simgear::AtomicChangeListener::fireChangeListeners();
simgear::Emesary::GlobalTransmitter::instance()->NotifyAll(mln_end);
}
static void initTerrasync()
{
// add the terrasync root as a data path so data can be retrieved from it
// (even if we are in read-only mode)
SGPath terraSyncDir(globals->get_terrasync_dir());
globals->append_data_path(terraSyncDir, false /* = ahead of FG_ROOT */);
if (fgGetBool("/sim/fghome-readonly", false)) {
SG_LOG(SG_GENERAL, SG_ALERT, "initTerrasync() failing because /sim/fghome-readonly is true");
return;
}
// make fg-root dir available so existing Scenery data can be copied, and
// hence not downloaded again.
fgSetString("/sim/terrasync/installation-dir", (globals->get_fg_root() / "Scenery").utf8Str());
simgear::SGTerraSync* terra_sync = new simgear::SGTerraSync();
terra_sync->setRoot(globals->get_props());
globals->add_subsystem("terrasync", terra_sync, SGSubsystemMgr::GENERAL);
terra_sync->bind();
terra_sync->init();
if (fgGetBool("/sim/terrasync/enabled")) {
flightgear::addSentryTag("terrasync", "enabled");
}
}
static void fgSetVideoOptions()
{
SGPath userDataPath = globals->get_fg_home();
SGPath autosaveFile = globals->autosaveFilePath(userDataPath);
if (autosaveFile.exists()) return;
std::string vendor = fgGetString("/sim/rendering/gl-vendor");
SGPath path(globals->get_fg_root());
path.append("Video");
path.append(vendor);
if (path.exists())
{
std::string renderer = fgGetString("/sim/rendering/gl-renderer");
size_t pos = renderer.find("x86/");
if (pos == std::string::npos) {
pos = renderer.find('/');
}
if (pos == std::string::npos) {
pos = renderer.find(" (");
}
if (pos != std::string::npos) {
renderer = renderer.substr(0, pos);
}
path.append(renderer+".xml");
if (path.exists()) {
SG_LOG(SG_INPUT, SG_INFO, "Reading video settings from " << path);
try {
SGPropertyNode *r_prop = fgGetNode("/sim/rendering");
readProperties(path, r_prop);
} catch (sg_exception& e) {
SG_LOG(SG_INPUT, SG_WARN, "failed to read video settings:" << e.getMessage()
<< "(from " << e.getOrigin() << ")");
}
}
}
}
static void checkOpenGLVersion()
{
flightgear::addSentryTag("gl-version", fgGetString("/sim/rendering/gl-version"));
flightgear::addSentryTag("gl-renderer", fgGetString("/sim/rendering/gl-vendor"));
flightgear::addSentryTag("gl-vendor", fgGetString("/sim/rendering/gl-renderer"));
#if defined(SG_MAC)
// Mac users can't upgrade their drivers, so complaining about
// versions doesn't help them much
return;
#endif
// format of these strings is not standardised, so be careful about
// parsing them.
std::string versionString(fgGetString("/sim/rendering/gl-version"));
string_list parts = simgear::strutils::split(versionString);
if (parts.size() == 3) {
if (parts[1].find("NVIDIA") != std::string::npos) {
// driver version number, dot-seperared
string_list driverVersion = simgear::strutils::split(parts[2], ".");
if (!driverVersion.empty()) {
int majorDriverVersion = simgear::strutils::to_int(driverVersion[0]);
if (majorDriverVersion < 300) {
std::ostringstream ss;
ss << "Please upgrade to at least version 300 of the nVidia drivers (installed version is " << parts[2] << ")";
flightgear::modalMessageBox("Outdated graphics drivers",
"FlightGear has detected outdated drivers for your graphics card.",
ss.str());
}
}
} // of NVIDIA-style version string
} // of three parts
}
namespace flightgear {
void registerMainLoop()
{
// stash current frame signal property
frame_signal = fgGetNode("/sim/signals/frame", true);
nasal_gc_threaded = fgGetNode("/sim/nasal-gc-threaded", true);
nasal_gc_threaded_wait = fgGetNode("/sim/nasal-gc-threaded-wait", true);
// init the Emesary receiver for Nasal
nasal::initMainLoopRecipient();
fgRegisterIdleHandler( fgMainLoop );
}
void unregisterMainLoopProperties()
{
nasal::shutdownMainLoopRecipient();
frame_signal.reset();
nasal_gc_threaded.reset();
nasal_gc_threaded_wait.reset();
}
} // namespace flightgear
// This is the top level master main function that is registered as
// our idle function
// The first few passes take care of initialization things (a couple
// per pass) and once everything has been initialized fgMainLoop from
// then on.
static int idle_state = 0;
static void fgIdleFunction ( void ) {
// Specify our current idle function state. This is used to run all
// our initializations out of the idle callback so that we can get a
// splash screen up and running right away.
if ( idle_state == 0 ) {
if (guiInit())
{
checkOpenGLVersion();
fgSetVideoOptions();
idle_state+=2;
fgSplashProgress("loading-aircraft-list");
fgSetBool("/sim/rendering/initialized", true);
}
} else if ( idle_state == 2 ) {
initTerrasync();
idle_state++;
fgSplashProgress("loading-nav-dat");
} else if ( idle_state == 3 ) {
bool done = fgInitNav();
if (done) {
++idle_state;
fgSplashProgress("init-scenery");
}
} else if ( idle_state == 4 ) {
idle_state++;
globals->add_new_subsystem<TimeManager>(SGSubsystemMgr::INIT);
// Do some quick general initializations
if( !fgInitGeneral()) {
throw sg_exception("General initialization failed");
}
// now we have commands up
flightgear::delayedSentryInit();
////////////////////////////////////////////////////////////////////
// Initialize the property-based built-in commands
////////////////////////////////////////////////////////////////////
fgInitCommands();
fgInitSceneCommands();
flightgear::registerSubsystemCommands(globals->get_commands());
////////////////////////////////////////////////////////////////////
// Initialize the material manager
////////////////////////////////////////////////////////////////////
globals->set_matlib( new SGMaterialLib );
simgear::SGModelLib::setPanelFunc(FGPanelNode::load);
} else if (( idle_state == 5 ) || (idle_state == 2005)) {
idle_state+=2;
flightgear::initPosition();
simgear::SGModelLib::init(globals->get_fg_root().utf8Str(), globals->get_props());
auto timeManager = globals->get_subsystem<TimeManager>();
timeManager->init();
////////////////////////////////////////////////////////////////////
// Initialize the TG scenery subsystem.
////////////////////////////////////////////////////////////////////
globals->add_new_subsystem<FGScenery>(SGSubsystemMgr::DISPLAY);
globals->get_scenery()->init();
globals->get_scenery()->bind();
fgSplashProgress("creating-subsystems");
} else if (( idle_state == 7 ) || (idle_state == 2007)) {
bool isReset = (idle_state == 2007);
idle_state = 8; // from the next state on, reset & startup are identical
SGTimeStamp st;
st.stamp();
try {
fgCreateSubsystems(isReset);
} catch (std::exception& e) {
// attempt to trace location of illegal argument / invalid string
// position errors on startup
flightgear::sentryReportException(string{"Creating subsystems: caught:"} + e.what());
throw;
}
SG_LOG(SG_GENERAL, SG_INFO, "Creating subsystems took:" << st.elapsedMSec());
fgSplashProgress("binding-subsystems");
} else if ( idle_state == 8 ) {
idle_state++;
SGTimeStamp st;
st.stamp();
globals->get_subsystem_mgr()->bind();
SG_LOG(SG_GENERAL, SG_INFO, "Binding subsystems took:" << st.elapsedMSec());
fgSplashProgress("init-subsystems");
} else if ( idle_state == 9 ) {
SGSubsystem::InitStatus status = globals->get_subsystem_mgr()->incrementalInit();
if ( status == SGSubsystem::INIT_DONE) {
++idle_state;
fgSplashProgress("finishing-subsystems");
} else {
fgSplashProgress("init-subsystems");
}
} else if ( idle_state == 10 ) {
idle_state = 900;
fgPostInitSubsystems();
fgSplashProgress("finalize-position");
} else if ( idle_state == 900 ) {
idle_state = 1000;
// setup OpenGL view parameters
globals->get_renderer()->setupView();
globals->get_renderer()->resize( fgGetInt("/sim/startup/xsize"),
fgGetInt("/sim/startup/ysize") );
WindowSystemAdapter::getWSA()->windows[0]->gc->add(
new simgear::canvas::VGInitOperation()
);
int session = fgGetInt("/sim/session",0);
session++;
fgSetInt("/sim/session",session);
}
if ( idle_state == 1000 ) {
sglog().setStartupLoggingEnabled(false);
// We've finished all our initialization steps, from now on we
// run the main loop.
fgSetBool("sim/sceneryloaded", false);
flightgear::registerMainLoop();
ngccn = new simgear::Notifications::NasalGarbageCollectionConfigurationNotification(nasal_gc_threaded->getBoolValue(), nasal_gc_threaded_wait->getBoolValue());
simgear::Emesary::GlobalTransmitter::instance()->NotifyAll(ngccn);
simgear::Emesary::GlobalTransmitter::instance()->NotifyAll(mln_started);
flightgear::addSentryBreadcrumb("entering main loop", "info");
}
if ( idle_state == 2000 ) {
flightgear::addSentryBreadcrumb("starting reset", "info");
fgStartNewReset();
idle_state = 2005;
}
}
void fgResetIdleState()
{
idle_state = 2000;
fgRegisterIdleHandler( &fgIdleFunction );
}
void fgInitSecureMode()
{
bool secureMode = true;
if (Options::sharedInstance()->isOptionSet("allow-nasal-from-sockets")) {
SG_LOG(SG_GENERAL, SG_MANDATORY_INFO, "\n!! Network connections allowed to use Nasal !!\n"
"Network connections will be allowed full access to the simulator \n"
"including running arbitrary scripts. Ensure you have adequate security\n"
"(such as a firewall which blocks external connections).\n");
secureMode = false;
}
// it's by design that we overwrite any existing property tree value
// here - this prevents an aircraft or add-on setting the property
// value underneath us, eg in their -set.xml
SGPropertyNode_ptr secureFlag = fgGetNode("/sim/secure-flag", true);
secureFlag->setBoolValue(secureMode);
secureFlag->setAttributes(SGPropertyNode::READ |
SGPropertyNode::PRESERVE |
SGPropertyNode::PROTECTED);
}
static void upper_case_property(const char *name)
{
using namespace simgear;
SGPropertyNode *p = fgGetNode(name, false);
if (!p) {
p = fgGetNode(name, true);
p->setStringValue("");
} else {
props::Type t = p->getType();
if (t == props::NONE || t == props::UNSPECIFIED)
p->setStringValue("");
else
assert(t == props::STRING);
}
SGPropertyChangeListener* muc = new FGMakeUpperCase;
globals->addListenerToCleanup(muc);
p->addChangeListener(muc);
}
// this hack is needed to avoid weird viewport sizing within OSG on Windows.
// still required as of March 2017, sad times.
// see for example https://sourceforge.net/p/flightgear/codetickets/1958/
static void ATIScreenSizeHack()
{
osg::ref_ptr<osg::Camera> hackCam = new osg::Camera;
hackCam->setRenderOrder(osg::Camera::PRE_RENDER);
int prettyMuchAnyInt = 1;
hackCam->setViewport(0, 0, prettyMuchAnyInt, prettyMuchAnyInt);
globals->get_renderer()->addCamera(hackCam, false);
}
// Propose NVIDIA Optimus / AMD Xpress to use high-end GPU
#if defined(SG_WINDOWS)
extern "C" {
_declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
_declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
}
#endif
static void rotateOldLogFiles()
{
const int maxLogCount = 10;
const auto homePath = globals->get_fg_home();
for (int i = maxLogCount; i > 0; --i) {
const auto name = "fgfs_" + std::to_string(i - 1) + ".log";
SGPath curLogFile = homePath / name;
if (curLogFile.exists()) {
auto newName = "fgfs_" + std::to_string(i) + ".log";
curLogFile.rename(homePath / newName);
}
}
SGPath p = homePath / "fgfs.log";
if (!p.exists())
return;
SGPath log0Path = homePath / "fgfs_0.log";
if (!p.rename(log0Path)) {
std::cerr << "Failed to rename " << p.str() << " to " << log0Path.str() << std::endl;
}
}
static void logToHome(const std::string& pri)
{
sgDebugPriority fileLogLevel = SG_INFO;
// https://sourceforge.net/p/flightgear/codetickets/2100/
if (!pri.empty()) {
try {
fileLogLevel = std::min(fileLogLevel, logstream::priorityFromString(pri));
} catch (std::exception& ) {
// let's not worry about this, and just log at INFO
}
}
SGPath logPath = globals->get_fg_home();
logPath.append("fgfs.log");
if (logPath.exists()) {
rotateOldLogFiles();
}
sglog().logToFile(logPath, SG_ALL, fileLogLevel);
}
struct SGLogDeltasListener : SGPropertyChangeListener
{
void valueChanged(SGPropertyNode* node) override
{
const char* value = node->getStringValue();
std::cerr << __FILE__ << ":" << __LINE__ << ": sglogdeltas value=" << value << "\n";
logDeltaSet(value);
}
};
static SGLogDeltasListener s_sglogdeltas_listener;
// Main top level initialization
int fgMainInit( int argc, char **argv )
{
sglog().setLogLevels( SG_ALL, SG_WARN );
sglog().setStartupLoggingEnabled(true);
globals = new FGGlobals;
auto initHomeResult = fgInitHome();
if (initHomeResult == InitHomeAbort) {
flightgear::fatalMessageBoxThenExit("Unable to create lock file",
"Flightgear was unable to create the lock file in FG_HOME");
}
std::cerr << "DidInitHome" << std::endl;
#if defined(HAVE_QT)
flightgear::initApp(argc, argv);
#endif
// check if the launcher is requested, since it affects config file parsing
bool showLauncher = flightgear::Options::checkForArg(argc, argv, "launcher");
// an Info.plist bundle can't define command line arguments, but it can set
// environment variables. This avoids needed a wrapper shell-script on OS-X.
showLauncher |= (::getenv("FG_LAUNCHER") != nullptr);
#if defined(HAVE_QT)
if (showLauncher && (initHomeResult == InitHomeReadOnly)) {
// show this message early, if we can
auto r = flightgear::showLockFileDialog();
if (r == flightgear::LockFileReset) {
SG_LOG( SG_GENERAL, SG_MANDATORY_INFO, "Deleting lock file at user request");
flightgear::addSentryBreadcrumb("deleting lock-file at user request", "info");
fgDeleteLockFile();
fgSetBool("/sim/fghome-readonly", false);
} else if (r == flightgear::LockFileQuit) {
return EXIT_SUCCESS;
}
}
#endif
{
SGPropertyNode* sglogdeltas = globals->get_props()->getNode("/sim/sg-log-deltas", true /*create*/);
assert(sglogdeltas);
sglogdeltas->addChangeListener(&s_sglogdeltas_listener, false /*initial*/);
const char* sglogdeltas_value = getenv("SG_LOG_DELTAS");
if (sglogdeltas_value) {
sglogdeltas->setStringValue(sglogdeltas_value);
}
}
globals->get_props()->getNode("/sim", true /*create*/)->setAttribute(SGPropertyNode::VALUE_CHANGED_DOWN, true);
{
SGPropertyNode* active = globals->get_props()->getNode("/sim/property-locking/active", true /*create*/);
SGPropertyNode* verbose = globals->get_props()->getNode("/sim/property-locking/verbose", true /*create*/);
SGPropertyNode* timing = globals->get_props()->getNode("/sim/property-locking/timing", true /*create*/);
SGPropertyNode* parent_listeners = globals->get_props()->getNode("/sim/property-locking/parent_listeners", true /*create*/);
SGPropertyLockControl(active, verbose, timing, parent_listeners);
}
const bool readOnlyFGHome = fgGetBool("/sim/fghome-readonly");
if (!readOnlyFGHome) {
// now home is initialised, we can log to a file inside it
const auto level = flightgear::Options::getArgValue(argc, argv, "--log-level");
logToHome(level);
std::cerr << "DidLogToHome" << std::endl;
}
if (readOnlyFGHome) {
flightgear::addSentryTag("fghome-readonly", "true");
std::cerr << "Read-Only-Home" << std::endl;
}
std::string version(FLIGHTGEAR_VERSION);
SG_LOG( SG_GENERAL, SG_INFO, "FlightGear: Version " << version );
SG_LOG( SG_GENERAL, SG_INFO, "FlightGear: Build Type " << FG_BUILD_TYPE );
SG_LOG( SG_GENERAL, SG_INFO, "Built with " << SG_COMPILER_STR);
SG_LOG( SG_GENERAL, SG_INFO, "Jenkins number/ID " << JENKINS_BUILD_NUMBER << ":"
<< JENKINS_BUILD_ID);
flightgear::addSentryTag("osg-version", osgGetVersion());
#ifdef __OpenBSD__
{
/* OpenBSD defaults to a small maximum data segment, which can cause
flightgear to crash with SIGBUS, so output a warning if this is likely.
*/
struct rlimit rlimit;
int e = getrlimit(RLIMIT_DATA, &rlimit);
if (e) {
SG_LOG( SG_GENERAL, SG_INFO, "This is OpenBSD; getrlimit() failed: " << strerror(errno));
}
else {
unsigned long long required = 4ULL * (1ULL<<30);
if (rlimit.rlim_cur < required) {
SG_LOG( SG_GENERAL, SG_POPUP, ""
<< "Max data segment (" << rlimit.rlim_cur << "bytes) too small.\n"
<< "This can cause Flightgear to crash due to SIGBUS.\n"
<< "E.g. increase with 'ulimit -d " << required/1024 << "'."
);
}
}
}
#endif
// seed the random number generator
sg_srandom_time();
string_list *col = new string_list;
globals->set_channel_options_list( col );
fgValidatePath(globals->get_fg_home(), false); // initialize static variables
upper_case_property("/sim/presets/airport-id");
upper_case_property("/sim/presets/runway");
upper_case_property("/sim/tower/airport-id");
upper_case_property("/autopilot/route-manager/input");
if (showLauncher) {
// to minimise strange interactions when launcher and config files
// set overlaping options, we disable the default files. Users can
// still explicitly request config files via --config options if they choose.
flightgear::Options::sharedInstance()->setShouldLoadDefaultConfig(false);
}
// Load the configuration parameters. (Command line options
// override config file options. Config file options override
// defaults.)
int configResult = fgInitConfig(argc, argv, false);
if (configResult == flightgear::FG_OPTIONS_ERROR) {
return EXIT_FAILURE;
} else if (configResult == flightgear::FG_OPTIONS_EXIT) {
return EXIT_SUCCESS;
}
#if defined(HAVE_QT)
if (showLauncher) {
flightgear::addSentryBreadcrumb("starting launcher", "info");
if (!flightgear::runLauncherDialog()) {
return EXIT_SUCCESS;
}
flightgear::addSentryBreadcrumb("completed launcher", "info");
}
#else
if (showLauncher) {
SG_LOG(SG_GENERAL, SG_ALERT, "\n!Launcher requested, but FlightGear was compiled without Qt support!\n");
}
#endif
fgInitSecureMode();
fgInitAircraftPaths(false);
auto errorManager = globals->add_new_subsystem<flightgear::ErrorReporter>(SGSubsystemMgr::GENERAL);
errorManager->preinit();
configResult = fgInitAircraft(false);
if (configResult == flightgear::FG_OPTIONS_ERROR) {
return EXIT_FAILURE;
} else if ((configResult == flightgear::FG_OPTIONS_EXIT) ||
(configResult == flightgear::FG_OPTIONS_SHOW_AIRCRAFT))
{
return EXIT_SUCCESS;
}
addons::AddonManager::createInstance();
configResult = flightgear::Options::sharedInstance()->processOptions();
if (configResult == flightgear::FG_OPTIONS_ERROR) {
return EXIT_FAILURE;
} else if (configResult == flightgear::FG_OPTIONS_EXIT) {
return EXIT_SUCCESS;
}
// Set the lists of allowed paths for cases where a path comes from an
// untrusted source, such as the global property tree (this uses $FG_HOME
// and other paths set by Options::processOptions()).
fgInitAllowedPaths();
const auto& resMgr = simgear::EmbeddedResourceManager::createInstance();
initFlightGearEmbeddedResources();
// The language was set in processOptions()
const std::string locale = globals->get_locale()->getPreferredLanguage();
// Must always be done after all resources have been added to 'resMgr'
resMgr->selectLocale(locale);
SG_LOG(SG_GENERAL, SG_INFO,
"EmbeddedResourceManager: selected locale '" << locale << "'");
if (fgGetBool("/sim/autosave-migration/did-migrate", false)) {
// inform the user we did migration. This is the earliest point
// we can do it, since now the locale is set
auto locale = globals->get_locale();
const auto title = locale->getLocalizedString("settings-migration-title", "sys", "Settings migrated");
const auto msg = locale->getLocalizedString("settings-migration-text", "sys",
"Saved settings were migrated from a previous version of FlightGear. "
"If you encounter any problems when using the system, try restoring "
"the default settings, before reporting a problem. "
"Saved settings can affect the appearance, performance and features of the simulator.");
flightgear::modalMessageBox(title, msg);
}
// Copy the property nodes for the menus added by registered add-ons
addons::AddonManager::instance()->addAddonMenusToFGMenubar();
auto presets = globals->add_new_subsystem<flightgear::GraphicsPresets>(SGSubsystemMgr::DISPLAY);
presets->applyInitialPreset();
// Initialize the Window/Graphics environment.
fgOSInit(&argc, argv);
_bootstrap_OSInit++;
fgRegisterIdleHandler( &fgIdleFunction );
// Initialize sockets (WinSock needs this)
simgear::Socket::initSockets();
// Clouds3D requires an alpha channel
fgOSOpenWindow(true /* request stencil buffer */);
fgOSResetProperties();
fntInit();
globals->get_renderer()->preinit();
if (fgGetBool("/sim/ati-viewport-hack", true)) {
SG_LOG(SG_GENERAL, SG_WARN, "Enabling ATI/AMD viewport hack");
flightgear::addSentryTag("ati-viewport-hack", "enabled");
ATIScreenSizeHack();
}
fgOutputSettings();
//try to disable the screensaver
fgOSDisableScreensaver();
// pass control off to the master event handler
int result = fgOSMainLoop();
flightgear::unregisterMainLoopProperties();
fgOSCloseWindow();
fgShutdownHome();
const bool requestLauncherRestart = fgGetBool("/sim/restart-launcher-on-exit");
simgear::Emesary::GlobalTransmitter::instance()->NotifyAll(mln_stopped);
simgear::clearEffectCache();
// clean up here; ensure we null globals to avoid
// confusing the atexit() handler
delete globals;
globals = nullptr;
// delete the NavCache here. This will cause the destruction of many cached
// objects (eg, airports, navaids, runways).
delete flightgear::NavDataCache::instance();
#if defined(HAVE_QT)
if (requestLauncherRestart) {
string_list originalArgs;
for (int arg = 1; arg < argc; ++arg) {
originalArgs.push_back(argv[arg]);
}
flightgear::addSentryBreadcrumb("Requested to restart launcher", "info");
flightgear::startLaunchOnExit(originalArgs);
}
#endif
return result;
}
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