int main(int argc, const char* argv[]) {
disableQtBearerPoll(); // Fixes wifi ping spikes
QString applicationName = "High Fidelity Interface - " + qgetenv("USERNAME");
bool instanceMightBeRunning = true;
#ifdef Q_OS_WIN
// Try to create a shared memory block - if it can't be created, there is an instance of
// interface already running. We only do this on Windows for now because of the potential
// for crashed instances to leave behind shared memory instances on unix.
QSharedMemory sharedMemory { applicationName };
instanceMightBeRunning = !sharedMemory.create(1, QSharedMemory::ReadOnly);
#endif
if (instanceMightBeRunning) {
// Try to connect and send message to existing interface instance
QLocalSocket socket;
socket.connectToServer(applicationName);
static const int LOCAL_SERVER_TIMEOUT_MS = 500;
// Try to connect - if we can't connect, interface has probably just gone down
if (socket.waitForConnected(LOCAL_SERVER_TIMEOUT_MS)) {
QStringList arguments;
for (int i = 0; i < argc; ++i) {
arguments << argv[i];
}
QCommandLineParser parser;
QCommandLineOption urlOption("url", "", "value");
parser.addOption(urlOption);
parser.process(arguments);
if (parser.isSet(urlOption)) {
QUrl url = QUrl(parser.value(urlOption));
if (url.isValid() && url.scheme() == HIFI_URL_SCHEME) {
qDebug() << "Writing URL to local socket";
socket.write(url.toString().toUtf8());
if (!socket.waitForBytesWritten(5000)) {
qDebug() << "Error writing URL to local socket";
}
}
}
socket.close();
qDebug() << "Interface instance appears to be running, exiting";
return EXIT_SUCCESS;
}
#ifdef Q_OS_WIN
return EXIT_SUCCESS;
#endif
}
// Check OpenGL version.
// This is done separately from the main Application so that start-up and shut-down logic within the main Application is
// not made more complicated than it already is.
{
OpenGLVersionChecker openGLVersionChecker(argc, const_cast<char**>(argv));
if (!openGLVersionChecker.isValidVersion()) {
qCDebug(interfaceapp, "Early exit due to OpenGL version.");
return 0;
}
}
QElapsedTimer startupTime;
startupTime.start();
// Debug option to demonstrate that the client's local time does not
// need to be in sync with any other network node. This forces clock
// skew for the individual client
const char* CLOCK_SKEW = "--clockSkew";
const char* clockSkewOption = getCmdOption(argc, argv, CLOCK_SKEW);
if (clockSkewOption) {
int clockSkew = atoi(clockSkewOption);
usecTimestampNowForceClockSkew(clockSkew);
qCDebug(interfaceapp, "clockSkewOption=%s clockSkew=%d", clockSkewOption, clockSkew);
}
// Oculus initialization MUST PRECEDE OpenGL context creation.
// The nature of the Application constructor means this has to be either here,
// or in the main window ctor, before GL startup.
Application::initPlugins();
int exitCode;
{
QSettings::setDefaultFormat(QSettings::IniFormat);
Application app(argc, const_cast<char**>(argv), startupTime);
// Setup local server
QLocalServer server { &app };
// We failed to connect to a local server, so we remove any existing servers.
server.removeServer(applicationName);
server.listen(applicationName);
QObject::connect(&server, &QLocalServer::newConnection, &app, &Application::handleLocalServerConnection);
QTranslator translator;
translator.load("i18n/interface_en");
app.installTranslator(&translator);
qCDebug(interfaceapp, "Created QT Application.");
exitCode = app.exec();
server.close();
}
Application::shutdownPlugins();
qCDebug(interfaceapp, "Normal exit.");
return exitCode;
}
int main(int argc, const char* argv[]) {
#ifdef Q_OS_WIN
// Run only one instance of Interface at a time.
HANDLE mutex = CreateMutex(NULL, FALSE, "High Fidelity Interface - " + qgetenv("USERNAME"));
DWORD result = GetLastError();
if (result == ERROR_ALREADY_EXISTS || result == ERROR_ACCESS_DENIED) {
// Interface is already running.
HWND otherInstance = NULL;
EnumWindows(enumWindowsCallback, (LPARAM)&otherInstance);
if (otherInstance) {
// Show other instance.
SendMessage(otherInstance, UWM_SHOW_APPLICATION, 0, 0);
// Send command line --url value to other instance.
if (argc >= 3) {
QStringList arguments;
for (int i = 0; i < argc; i += 1) {
arguments << argv[i];
}
QCommandLineParser parser;
QCommandLineOption urlOption("url", "", "value");
parser.addOption(urlOption);
parser.process(arguments);
if (parser.isSet(urlOption)) {
QUrl url = QUrl(parser.value(urlOption));
if (url.isValid() && url.scheme() == HIFI_URL_SCHEME) {
QByteArray urlBytes = url.toString().toLatin1();
const char* urlChars = urlBytes.data();
COPYDATASTRUCT cds;
cds.cbData = urlBytes.length() + 1;
cds.lpData = (PVOID)urlChars;
SendMessage(otherInstance, WM_COPYDATA, 0, (LPARAM)&cds);
}
}
}
}
return 0;
}
#endif
QElapsedTimer startupTime;
startupTime.start();
// Debug option to demonstrate that the client's local time does not
// need to be in sync with any other network node. This forces clock
// skew for the individual client
const char* CLOCK_SKEW = "--clockSkew";
const char* clockSkewOption = getCmdOption(argc, argv, CLOCK_SKEW);
if (clockSkewOption) {
int clockSkew = atoi(clockSkewOption);
usecTimestampNowForceClockSkew(clockSkew);
qCDebug(interfaceapp, "clockSkewOption=%s clockSkew=%d", clockSkewOption, clockSkew);
}
// Oculus initialization MUST PRECEDE OpenGL context creation.
// The nature of the Application constructor means this has to be either here,
// or in the main window ctor, before GL startup.
Application::initPlugins();
int exitCode;
{
QSettings::setDefaultFormat(QSettings::IniFormat);
Application app(argc, const_cast<char**>(argv), startupTime);
QTranslator translator;
translator.load("interface_en");
app.installTranslator(&translator);
qCDebug(interfaceapp, "Created QT Application.");
exitCode = app.exec();
}
Application::shutdownPlugins();
#ifdef Q_OS_WIN
ReleaseMutex(mutex);
#endif
qCDebug(interfaceapp, "Normal exit.");
return exitCode;
}
