void startServer(QString &serverName) { // Start a QLocalServer to listen for connections server = new QLocalServer(); server->removeServer(serverName); server->listen(serverName); QObject::connect(server, SIGNAL(newConnection()), q_ptr, SLOT(slotConnectionEstablished())); }
/** Constructor. Parses the command-line arguments, resets Rshare's * configuration (if requested), and sets up the GUI style and language * translation. */ Rshare::Rshare(QStringList args, int &argc, char **argv, const QString &dir) : QApplication(argc, argv) { mStartupTime = QDateTime::currentDateTime(); localServer = NULL; //Initialize connection to LocalServer to know if other process runs. { QString serverName = QString(TARGET); if (!args.isEmpty()) { // load into shared memory QBuffer buffer; buffer.open(QBuffer::ReadWrite); QDataStream out(&buffer); out << args; int size = buffer.size(); QSharedMemory newArgs; newArgs.setKey(serverName + "_newArgs"); if (newArgs.isAttached()) newArgs.detach(); if (!newArgs.create(size)) { std::cerr << "(EE) Rshare::Rshare Unable to create shared memory segment of size:" << size << " error:" << newArgs.errorString().toStdString() << "." << std::endl; #ifdef Q_OS_UNIX std::cerr << "Look with `ipcs -m` for nattch==0 segment. And remove it with `ipcrm -m 'shmid'`." << std::endl; //No need for windows, as it removes shared segment directly even when crash. #endif newArgs.detach(); ::exit(EXIT_FAILURE); } newArgs.lock(); char *to = (char*)newArgs.data(); const char *from = buffer.data().data(); memcpy(to, from, qMin(newArgs.size(), size)); newArgs.unlock(); // Connect to the Local Server of the main process to notify it // that a new process had been started QLocalSocket localSocket; localSocket.connectToServer(QString(TARGET)); std::cerr << "Rshare::Rshare waitForConnected to other instance." << std::endl; if( localSocket.waitForConnected(100) ) { std::cerr << "Rshare::Rshare Connection etablished. Waiting for disconnection." << std::endl; localSocket.waitForDisconnected(1000); newArgs.detach(); std::cerr << "Rshare::Rshare Arguments was sended." << std::endl << " To disable it, in Options - General - Misc," << std::endl << " uncheck \"Use Local Server to get new Arguments\"." << std::endl; ::exit(EXIT_SUCCESS); // Terminate the program using STDLib's exit function } newArgs.detach(); } // No main process exists // Or started without arguments // So we start a Local Server to listen for connections from new process localServer= new QLocalServer(); QObject::connect(localServer, SIGNAL(newConnection()), this, SLOT(slotConnectionEstablished())); updateLocalServer(); } #if QT_VERSION >= QT_VERSION_CHECK (5, 0, 0) qInstallMessageHandler(qt_msg_handler); #else qInstallMsgHandler(qt_msg_handler); #endif #ifndef __APPLE__ /* set default window icon */ setWindowIcon(QIcon(":/icons/logo_128.png")); #endif mBlink = true; QTimer *timer = new QTimer(this); timer->setInterval(500); connect(timer, SIGNAL(timeout()), this, SLOT(blinkTimer())); timer->start(); timer = new QTimer(this); timer->setInterval(60000); connect(timer, SIGNAL(timeout()), this, SIGNAL(minuteTick())); timer->start(); /* Read in all our command-line arguments. */ parseArguments(args); /* Check if we're supposed to reset our config before proceeding. */ if (_args.contains(ARG_RESET)) { Settings->reset(); } /* Handle the -loglevel and -logfile options. */ if (_args.contains(ARG_LOGFILE)) _log.open(_args.value(ARG_LOGFILE)); if (_args.contains(ARG_LOGLEVEL)) { _log.setLogLevel(Log::stringToLogLevel( _args.value(ARG_LOGLEVEL))); if (!_args.contains(ARG_LOGFILE)) _log.open(stdout); } if (!_args.contains(ARG_LOGLEVEL) && !_args.contains(ARG_LOGFILE)) _log.setLogLevel(Log::Off); /* config directory */ useConfigDir = false; if (dir != "") { setConfigDirectory(dir); } /** Initialize support for language translations. */ //LanguageSupport::initialize(); resetLanguageAndStyle(); /* Switch off auto shutdown */ setQuitOnLastWindowClosed ( false ); /* Initialize GxsIdDetails */ GxsIdDetails::initialize(); }