static mydsp *create_shared_dsp(){ QString key = "radium_crashreporter_" + QString::number(QDateTime::currentMSecsSinceEpoch()); QSharedMemory *shared = new QSharedMemory(key); if(shared->create(sizeof(mydsp))==false){ fprintf(stderr,"COMPRESSOR_create_shared: Couldn't create... Error: %s\n",shared->error()==QSharedMemory::NoError?"No error (?)":shared->errorString().toAscii().data()); return NULL; } void *memory = shared->data(); mydsp *dsp = new(memory) mydsp(); #if 0 printf("memory: %p, shared: %p\n",memory,shared); dsp->key = key; dsp->shared = shared; #endif //printf("system: %d\n",system(QString(QString("xterm -e gdb /home/kjetil/radium_compressor/radium_compressor --args --ladspa-slave ")+key).toAscii())); printf("system: %d\n",system(QString(QString("xterm -e gdb --args /home/kjetil/radium_compressor/radium_compressor --ladspa-slave ")+key+" &").toAscii())); return dsp; #if 0 if(fork()!=0){ return dsp; }else{ QSharedMemory *shared = new QSharedMemory(key); if(shared->attach()==false){ fprintf(stderr,"Ladspa compressor: Couldn't attach... Error: %s\n",shared->error()==QSharedMemory::NoError?"No error (?)":shared->errorString().toAscii().data()); exit(0); } char *argv[1]={(char*)"radium_compressor"}; mydsp *dsp = (mydsp*)shared->data(); fprintf(stderr,"dsp: %p.\n",dsp); portData* port_data = new portData(dsp->getNumInputs(), dsp->getNumOutputs()); dsp->buildUserInterface(port_data); // This is the second time buildUserInterface is called twice on the dsp data. One time in each process. start_program(1,argv,new PLUGIN(0, port_data, dsp)); exit(0); return NULL; } #endif }
QDataStream &operator<<(QDataStream &out, const ValuesChangedCommand &command) { static const bool dontUseSharedMemory = !qgetenv("DESIGNER_DONT_USE_SHARED_MEMORY").isEmpty(); if (!dontUseSharedMemory && command.valueChanges().count() > 5) { static quint32 keyCounter = 0; ++keyCounter; command.m_keyNumber = keyCounter; QByteArray outDataStreamByteArray; QDataStream temporaryOutDataStream(&outDataStreamByteArray, QIODevice::WriteOnly); temporaryOutDataStream.setVersion(QDataStream::Qt_4_8); temporaryOutDataStream << command.valueChanges();; QSharedMemory *sharedMemory = createSharedMemory(keyCounter, outDataStreamByteArray.size()); if (sharedMemory) { std::memcpy(sharedMemory->data(), outDataStreamByteArray.constData(), sharedMemory->size()); out << command.keyNumber(); return out; } } out << qint32(0); out << command.valueChanges(); return out; }
/** Перезагружает словарь по пути changedDictionaryPath */ void DictionaryManager::reloadDictionary() { QString &path = changedDictionaryPath; qDebug() << QString("reloading dictionary from %1.").arg(path); try { QString key = filenameToKey.value(path); QSharedMemory *shared = data.value(key); if (!shared) throw Exception(QString("Ошибка перезагрузки словаря %1. Словарь не был загружен ранее.").arg(path)); QFile fileDictionary(path); QByteArray buffer; if (!fileDictionary.open(QFile::ReadOnly)) throw Exception(QString("Ошибка чтения файла словаря. Key: %1; file: %2").arg(key).arg(path)); buffer = fileDictionary.readAll(); shared->lock(); char *to = (char *)shared->data(); const char *from = buffer.data(); memcpy(to, from, qMin(shared->size(), buffer.size())); shared->unlock(); qDebug() << "Словарь обновлён"; } catch (Exception &ex) { qDebug() << tr("Ошибка во время загрузки словаря %1.\nОписание: %2").arg(path).arg(ex.text()); } }
bool isRunning(){ if(!appShare.create(16)){ if(!appShare.attach() || !appShare.lock()) return false; void* data = appShare.data(); snprintf((char*)data, 16, "Open"); appShare.unlock(); return true; } return false; }
void MainWindow::timerTick(){ // Check if another instance requested this in the foreground if(appShare.lock()){ void* data = appShare.data(); if((QString)QByteArray((const char*)data) == "Open") show(); // Remove the request *(char*)data = 0; appShare.unlock(); } scanKeyboards(); }
// Check if the application is running. Optionally write something to its shared memory. static bool isRunning(const char* command){ // Try to create shared memory (if successful, application was not already running) if(!appShare.create(SHMEM_SIZE) || !appShare.lock()){ // Lock existing shared memory if(!appShare.attach() || !appShare.lock()) return true; bool running = false; if(appShare.size() == SHMEM_SIZE_V015){ // Old shmem - no PID listed so assume the process is running, and print the command directly to the buffer if(command){ void* data = appShare.data(); snprintf((char*)data, SHMEM_SIZE_V015, "%s", command); } running = true; } else { // New shmem. Scan the contents of the shared memory for a PID QStringList lines = QString((const char*)appShare.constData()).split("\n"); if(pidActive(lines)){ running = true; // Append the command if(command){ lines.append(QString("Option ") + command); QByteArray newMem = lines.join("\n").left(SHMEM_SIZE).toLatin1(); // Copy the NUL byte as well as the string memcpy(appShare.data(), newMem.constData(), newMem.length() + 1); } } } if(running){ appShare.unlock(); return true; } } // Not already running. Initialize the shared memory with our PID snprintf((char*)appShare.data(), appShare.size(), "PID %ld", (long)getpid()); appShare.unlock(); return false; }
bool Application::isRunning() { bool running = BaseApplication::isRunning(); QSharedMemory *sharedMem = new QSharedMemory(id() + QLatin1String("-shared-memory-key"), this); if (!running) { // First instance creates shared memory and store PID if (sharedMem->create(sizeof(DWORD)) && sharedMem->lock()) { *(static_cast<DWORD*>(sharedMem->data())) = ::GetCurrentProcessId(); sharedMem->unlock(); } } else { // Later instances attach to shared memory and retrieve PID if (sharedMem->attach() && sharedMem->lock()) { ::AllowSetForegroundWindow(*(static_cast<DWORD*>(sharedMem->data()))); sharedMem->unlock(); } } if (!sharedMem->isAttached()) qWarning() << "Failed to initialize shared memory: " << sharedMem->errorString(); return running; }
void *COMPRESSOR_create_ladspa(const char *key){ QSharedMemory *shared = new QSharedMemory(key); if(shared->attach()==false){ fprintf(stderr,"Ladspa compressor: Couldn't attach... Error: %s\n",shared->error()==QSharedMemory::NoError?"No error (?)":shared->errorString().toAscii().data()); exit(0); } mydsp *dsp = (mydsp*)shared->data(); fprintf(stderr,"dsp: %p.\n",dsp); portData* port_data = new portData(dsp->mydsp::getNumInputs(), dsp->mydsp::getNumOutputs()); dsp->mydsp::buildUserInterface(port_data); // buildUserInterface is called twice on the dsp data. One time in each process. return new PLUGIN(0, port_data, dsp); }
void *COMPRESSOR_create_shared(float sample_rate){ QString key = "radium_crashreporter_" + QString::number(QDateTime::currentMSecsSinceEpoch()); QSharedMemory *shared = new QSharedMemory(key); if(shared->create(sizeof(Compressor_wrapper))==false){ fprintf(stderr,"COMPRESSOR_create_shared: Couldn't create... Error: %s\n",shared->error()==QSharedMemory::NoError?"No error (?)":shared->errorString().toAscii().data()); return NULL; } void *memory = shared->data(); Compressor_wrapper *wrapper = new(memory) Compressor_wrapper(sample_rate); printf("memory: %p, shared: %p\n",memory,shared); wrapper->key = key; wrapper->shared = shared; return wrapper; }
bool TasDataShare::storeSharedData(const QString& identifier, const TasSharedData& data, QString& errMsg) { QSharedMemory* storage = new QSharedMemory(identifier); QByteArray array = data.asArray(); int size = array.size(); if(!storage->create(size)){ delete storage; return false; } storage->lock(); char *to = (char*)storage->data(); const char *from = array.data(); memcpy(to, from, qMin(storage->size(), size)); storage->unlock(); mStoredDataBlocks.insert(identifier, storage); errMsg = " key:" + storage->key(); return true; }
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(); }
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; }
/*! Загружает словарь из файла filename в разделяемую память с ключём key. */ QSharedMemory *DictionaryManager::loadDictionary(const QString &filename, const QString &key) { QFile fileDictionary(filename); QByteArray buffer; QSharedMemory *shared; if (!fileDictionary.open(QFile::ReadOnly)) throw Exception(QString("Ошибка чтения файла словаря. Key: %1; file: %2").arg(key).arg(filename)); buffer = fileDictionary.readAll(); shared = new QSharedMemory(key); if (!shared->create(buffer.size() * 1.2)) // Выделяем память с 20% запасом throw Exception(QString("Ошибка выделения памяти под словарь %1. Описание: %2. " "Словарь будет пропущен.") .arg(key) .arg(shared->errorString())); shared->lock(); char *to = (char *)shared->data(); const char *from = buffer.data(); memcpy(to, from, qMin(shared->size(), buffer.size())); shared->unlock(); return shared; }
void *COMPRESSOR_create_from_shared_mem_key(const char *key){ QSharedMemory *shared = new QSharedMemory(key); return shared->data(); }
void set(QSharedMemory &sm, int pos, QChar value) { ((char*)sm.data())[pos] = value.toLatin1(); }
int& QSystemReadWriteLockPrivate::accessCount() { return *((int *)m_counts.data()); }
QChar get(QSharedMemory &sm, int i) { return QChar::fromLatin1(((char*)sm.data())[i]); }
unsigned int &QSystemReadWriteLockPrivate::waitingWriters() { return *(((unsigned int*)m_counts.data())+2); }
int main(int argc, char *argv[]) { QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling); QApplication a(argc, argv); auto startMinimized = false; QString uri = ""; for (auto string : QCoreApplication::arguments()) { if (string == "-m" || string == "--minimized") startMinimized = true; if (string == "-d" || string == "--debug") Console(); if (string.startsWith("ring:")) { uri = string; } } #ifdef URI_PROTOCOL QSharedMemory* shm = new QSharedMemory("RingShm"); QSystemSemaphore* sem = new QSystemSemaphore("RingSem", 0); if (not shm->create(1024)) { if (not uri.isEmpty()) { shm->attach(); shm->lock(); char *to = (char*) shm->data(); QChar *data = uri.data(); while (!data->isNull()) { memset(to, data->toLatin1(), 1); ++data; ++to; } memset(to, 0, 1); //null terminator shm->unlock(); } sem->release(); delete shm; exit(EXIT_SUCCESS); } //Client listening to shm event memset((char*)shm->data(), 0, shm->size()); ShmClient* shmClient = new ShmClient(shm, sem); #endif QTranslator qtTranslator; qtTranslator.load("qt_" + QLocale::system().name(), QLibraryInfo::location(QLibraryInfo::TranslationsPath)); a.installTranslator(&qtTranslator); QTranslator lrcTranslator; lrcTranslator.load("share/libringclient/translations/lrc_" + QLocale::system().name()); a.installTranslator(&lrcTranslator); QTranslator mainTranslator; mainTranslator.load("share/ring/translations/ring_client_windows_" + QLocale::system().name()); a.installTranslator(&mainTranslator); QFont font; font.setFamily("Segoe UI"); a.setFont(font); QFile file(":/stylesheet.css"); if(file.open(QIODevice::ReadOnly | QIODevice::Text)) { a.setStyleSheet(file.readAll()); file.close(); } QCoreApplication::setOrganizationName("Savoir-faire Linux"); QCoreApplication::setOrganizationDomain("ring.cx"); QCoreApplication::setApplicationName("Ring"); if (not uri.isEmpty()) { startMinimized = false; MainWindow::instance().onRingEvent(uri); } if (not startMinimized) MainWindow::instance().show(); else { MainWindow::instance().showMinimized(); MainWindow::instance().hide(); } MainWindow::instance().createThumbBar(); #ifdef URI_PROTOCOL QObject::connect(shmClient, SIGNAL(RingEvent(QString)), &MainWindow::instance(), SLOT(onRingEvent(QString))); QObject::connect(&a, &QApplication::aboutToQuit, [&a, &shmClient, &shm, &sem]() { shmClient->terminate(); delete shmClient; delete shm; delete sem; }); #endif return a.exec(); }
/** 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(); }