/** * @brief Executed when new instance connect command is sent to LocalServer */ void Rshare::slotConnectionEstablished() { QLocalSocket *socket = localServer->nextPendingConnection(); socket->close(); delete socket; QSharedMemory newArgs; newArgs.setKey(QString(TARGET) + "_newArgs"); if (!newArgs.attach()) { std::cerr << "(EE) Rshare::slotConnectionEstablished() Unable to attach to shared memory segment." << newArgs.errorString().toStdString() << std::endl; return; } QBuffer buffer; QDataStream in(&buffer); QStringList args; newArgs.lock(); buffer.setData((char*)newArgs.constData(), newArgs.size()); buffer.open(QBuffer::ReadOnly); in >> args; newArgs.unlock(); newArgs.detach(); emit newArgsReceived(args); while (!args.empty()) { std::cerr << "Rshare::slotConnectionEstablished args:" << QString(args.takeFirst()).toStdString() << std::endl; } }
/*! Destructor */ TasDataShare::~TasDataShare() { QMutableHashIterator<QString, QSharedMemory*> i(mStoredDataBlocks); while (i.hasNext()) { i.next(); QSharedMemory* mem = i.value(); mem->detach(); delete mem; } mStoredDataBlocks.clear(); }
void conflict_core::openAida(){ aida.setKey("AIDA64_SensorValues"); if (aida.isAttached()){ aida.detach(); } if (!aida.create(10000)){ conflict.aidaOpen = false; }else{ conflict.aidaOpen = true; } }
bool TasDataShare::detachSharedData(const QString& identifier) { if(mStoredDataBlocks.contains(identifier)){ QSharedMemory* mem = mStoredDataBlocks.value(identifier); if(!mem->detach()){ return false; } delete mem; mem = 0; mStoredDataBlocks.remove(identifier); } return true; }
int consumer() { QSharedMemory consumer; consumer.setKey("market"); //qDebug("consumer starting"); int tries = 0; while (!consumer.attach()) { if (tries == 5000) { qWarning() << "consumer exiting, waiting too long"; return EXIT_FAILURE; } ++tries; QTest::qSleep(1); } //qDebug("consumer attached"); int i = 0; while (true) { if (!consumer.lock()) { qWarning() << "Could not lock" << consumer.key(); return EXIT_FAILURE; } if (get(consumer, 0) == 'Q') { set(consumer, 0, ++i); //qDebug() << "consumer sets" << i; } if (get(consumer, 0) == 'E') { if (!consumer.unlock()) { qWarning() << "Could not unlock" << consumer.key(); return EXIT_FAILURE; } break; } if (!consumer.unlock()) { qWarning() << "Could not unlock" << consumer.key(); return EXIT_FAILURE; } QTest::qSleep(10); } //qDebug("consumer detaching"); if (!consumer.detach()) { qWarning() << "Could not detach" << consumer.key(); return EXIT_FAILURE; } return EXIT_SUCCESS; }
static QSharedMemory *createSharedMemory(qint32 key, int byteCount) { QSharedMemory *sharedMemory = new QSharedMemory(QString(valueKeyTemplateString).arg(key)); bool sharedMemoryIsCreated = sharedMemory->create(byteCount); if (!sharedMemoryIsCreated) { if (sharedMemory->isAttached()) sharedMemory->attach(); sharedMemory->detach(); sharedMemoryIsCreated = sharedMemory->create(byteCount); } if (sharedMemoryIsCreated) { globalSharedMemoryCache.insert(key, sharedMemory); return sharedMemory; } return 0; }
void setBool(bool value, QString name) { QSharedMemory* sharedMemory = boolMemoryMap.value(name); if(sharedMemory->isAttached()) { sharedMemory->detach(); } int size = sizeof(bool); if (!sharedMemory->create(size)) { sharedMemory->attach(QSharedMemory::ReadWrite); } sharedMemory->lock(); bool *array = (bool*)sharedMemory->data(); memcpy(array, &value, qMin(sharedMemory->size(), size)); sharedMemory->unlock(); }
void setString(const char value[], QString name) { QSharedMemory* sharedMemory = stringMemoryMap.value(name); if(sharedMemory->isAttached()) sharedMemory->detach(); int size = strlen(value) + sizeof(char); if (!sharedMemory->create(size)) { if (!sharedMemory->isAttached()) { sharedMemory->attach(QSharedMemory::ReadWrite); } } sharedMemory->lock(); char *to = (char*)sharedMemory->data(); memcpy(to, value, qMin(sharedMemory->size(), size)); sharedMemory->unlock(); }
// Example how to get json using shared memory. Not tested :-D std::pair<bool, QString> json() { QSharedMemory sharedMemory; if (!sharedMemory.attach()) { return std::make_pair<bool, QString>(false, QString()); } QBuffer buffer; QDataStream in(&buffer); QString json; sharedMemory.lock(); buffer.setData((char*)sharedMemory.constData(), sharedMemory.size()); buffer.open(QBuffer::ReadOnly); in >> json; sharedMemory.unlock(); sharedMemory.detach(); return std::make_pair<bool, QString>(false, QString()); }
int getInt(QString name) { QSharedMemory* sharedMemory = intMemoryMap[name]; sharedMemory->attach(QSharedMemory::ReadOnly); int returnValue = 0; if(!sharedMemory->isAttached()) { return returnValue; } sharedMemory->lock(); int* value = (int*)sharedMemory->data(); memcpy(&returnValue, value, sizeof(value)); sharedMemory->unlock(); sharedMemory->detach(); return returnValue; }
void setInt(int value, QString name) { QSharedMemory* sharedMemory = intMemoryMap.value(name); if(sharedMemory->isAttached()) sharedMemory->detach(); int size = sizeof(int); if (!sharedMemory->create(size)) { if (!sharedMemory->isAttached()) { sharedMemory->attach(QSharedMemory::ReadWrite); } } sharedMemory->lock(); int* to = (int*)sharedMemory->data(); memcpy(to, &value, qMin(sharedMemory->size(), size)); sharedMemory->unlock(); }
bool getBool(QString name) { QSharedMemory* sharedMemory = boolMemoryMap[name]; sharedMemory->attach(QSharedMemory::ReadOnly); bool returnValue = false; if(!sharedMemory->isAttached()) { return returnValue; } sharedMemory->lock(); bool value = *(bool*)sharedMemory->data(); returnValue = value; sharedMemory->unlock(); sharedMemory->detach(); return returnValue; }
char* getString(QString name) { QSharedMemory* sharedMemory = stringMemoryMap[name]; sharedMemory->attach(QSharedMemory::ReadOnly); char* strValue = (char*)""; if(!sharedMemory->isAttached()) { return strValue; } sharedMemory->lock(); char* shared = (char*)sharedMemory->data(); strValue = new char[strlen(shared) + sizeof(char)]; strcpy(strValue, shared); sharedMemory->unlock(); sharedMemory->detach(); return strValue; }
bool detach_jt9_() {return mem_jt9.detach();}
/** 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(); }