C++ (Cpp) QThreadData::ref Examples

Example #1

File: qthread_unix.cpp Project: GodFox/qtopia-ezx

void *QThreadPrivate::start(void *arg)
{
    pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
    pthread_cleanup_push(QThreadPrivate::finish, arg);

    QThread *thr = reinterpret_cast<QThread *>(arg);
    QThreadData *data = QThreadData::get2(thr);

    pthread_once(&current_thread_data_once, create_current_thread_data_key);
    pthread_setspecific(current_thread_data_key, data);

    data->ref();
    data->quitNow = false;

    // ### TODO: allow the user to create a custom event dispatcher
    createEventDispatcher(data);

    emit thr->started();
    pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
    pthread_testcancel();
    thr->run();

    pthread_cleanup_pop(1);
    return 0;
}

Example #2

File: qobject.cpp Project: wpbest/copperspice

void QObject::moveToThread(QThread *targetThread)
{
   if (m_threadData.load()->thread == targetThread) {
      // object is already in this thread
      return;
   }

   if (m_parent != 0) {
      qWarning("QObject::moveToThread() Can not move an object with a parent");
      return;
   }

   if (isWidgetType()) {
      qWarning("QObject::moveToThread() Widgets can not be moved to a new thread");
      return;
   }

   QThreadData *currentData = QThreadData::current();
   QThreadData *targetData = targetThread ? QThreadData::get2(targetThread) : new QThreadData(0);

   QThreadData *threadData = m_threadData.load();

   if (threadData->thread == 0 && currentData == targetData) {
      // exception: allow moving objects with no thread affinity to the current thread
      currentData = threadData;

   } else if (threadData != currentData) {

      qWarning("QObject::moveToThread() Current thread (%p) is not the current object's thread (%p).\n"
               "Can not move to target thread (%p)\n", currentData->thread, threadData->thread, targetData->thread);

#ifdef Q_WS_MAC

      qWarning("Multiple libraries might be loaded in the same process. Verify all plugins are "
               "linked with the correct binaries. Export DYLD_PRINT_LIBRARIES=1 and verify only one set of "
               "binaries are being loaded.");
#endif

      return;
   }

   // prepare to move
   this->moveToThread_helper();

   QOrderedMutexLocker locker(&currentData->postEventList.mutex, &targetData->postEventList.mutex);

   // keep currentData alive
   currentData->ref();

   // move the object
   this->setThreadData_helper(currentData, targetData);

   locker.unlock();
   currentData->deref();
}