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-rw-r--r--src/corelib/thread/qthread_winrt.cpp450
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diff --git a/src/corelib/thread/qthread_winrt.cpp b/src/corelib/thread/qthread_winrt.cpp
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--- a/src/corelib/thread/qthread_winrt.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL21$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see http://www.qt.io/terms-conditions. For further
-** information use the contact form at http://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 or version 3 as published by the Free
-** Software Foundation and appearing in the file LICENSE.LGPLv21 and
-** LICENSE.LGPLv3 included in the packaging of this file. Please review the
-** following information to ensure the GNU Lesser General Public License
-** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** As a special exception, The Qt Company gives you certain additional
-** rights. These rights are described in The Qt Company LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qthread.h"
-#include "qthread_p.h"
-#include "qthreadstorage.h"
-
-#include <QtCore/QElapsedTimer>
-#include <QtCore/QUuid>
-#include <QtCore/qt_windows.h>
-#include <QtCore/qfunctions_winrt.h>
-#include <QtCore/private/qcoreapplication_p.h>
-#include <QtCore/private/qeventdispatcher_winrt_p.h>
-
-#include <wrl.h>
-#include <windows.system.threading.h>
-#include <windows.system.threading.core.h>
-using namespace Microsoft::WRL;
-using namespace Microsoft::WRL::Wrappers;
-using namespace ABI::Windows::Foundation;
-using namespace ABI::Windows::System::Threading;
-using namespace ABI::Windows::System::Threading::Core;
-
-#ifndef QT_NO_THREAD
-QT_BEGIN_NAMESPACE
-
-static WorkItemPriority nativePriority(QThread::Priority priority)
-{
- switch (priority) {
- default:
- case QThread::NormalPriority:
- return WorkItemPriority_Normal;
- case QThread::IdlePriority:
- case QThread::LowestPriority:
- case QThread::LowPriority:
- return WorkItemPriority_Low;
- case QThread::HighPriority:
- case QThread::HighestPriority:
- case QThread::TimeCriticalPriority:
- return WorkItemPriority_High;
- }
-}
-
-class QWinRTThreadGlobal
-{
-public:
- QWinRTThreadGlobal()
- {
- HRESULT hr;
-
- hr = RoGetActivationFactory(
- HString::MakeReference(RuntimeClass_Windows_System_Threading_Core_PreallocatedWorkItem).Get(),
- IID_PPV_ARGS(&workItemFactory));
- Q_ASSERT_SUCCEEDED(hr);
-
- hr = RoGetActivationFactory(
- HString::MakeReference(RuntimeClass_Windows_System_Threading_Core_SignalNotifier).Get(),
- IID_PPV_ARGS(&notifierFactory));
- Q_ASSERT_SUCCEEDED(hr);
-
- QString eventName = QUuid::createUuid().toString();
- dispatchEvent = CreateEventEx(NULL, reinterpret_cast<LPCWSTR>(eventName.utf16()), 0, EVENT_ALL_ACCESS);
-
- hr = notifierFactory->AttachToEvent(
- HStringReference(reinterpret_cast<LPCWSTR>(eventName.utf16())).Get(),
- Callback<ISignalHandler>(this, &QWinRTThreadGlobal::dispatch).Get(), &notifier);
- Q_ASSERT_SUCCEEDED(hr);
- hr = notifier->Enable();
- Q_ASSERT_SUCCEEDED(hr);
- }
-
- ~QWinRTThreadGlobal()
- {
- CloseHandle(dispatchEvent);
- }
-
- void dispatch()
- {
- SetEvent(dispatchEvent);
- }
-
- void push(QThreadPrivate *d)
- {
- threads.append(d);
- }
-
-private:
- HRESULT dispatch(ISignalNotifier *notifier, boolean timedOut)
- {
- Q_UNUSED(timedOut);
- notifier->Enable();
- if (threads.isEmpty())
- return S_OK;
-
- QThreadPrivate *thread = threads.takeFirst();
- ComPtr<IPreallocatedWorkItem> workItem;
- HRESULT hr = workItemFactory->CreateWorkItemWithPriority(
- Callback<IWorkItemHandler>(thread, &QThreadPrivate::start).Get(),
- nativePriority(thread->priority), &workItem);
- if (FAILED(hr)) {
- qErrnoWarning(hr, "Failed to create thread work item");
- thread->finish();
- return hr;
- }
-
- hr = workItem->RunAsync(&thread->handle);
- if (FAILED(hr)) {
- qErrnoWarning(hr, "Failed to run work item");
- thread->finish();
- return hr;
- }
-
- return S_OK;
- }
-
- HANDLE dispatchEvent;
- ComPtr<ISignalNotifier> notifier;
- ComPtr<ISignalNotifierStatics> notifierFactory;
- ComPtr<IPreallocatedWorkItemFactory> workItemFactory;
-
- QList<QThreadPrivate *> threads;
-};
-Q_GLOBAL_STATIC(QWinRTThreadGlobal, g)
-
-/**************************************************************************
- ** QThreadData
- *************************************************************************/
-
-__declspec(thread) static QThreadData *qt_current_thread_data = 0;
-
-void QThreadData::clearCurrentThreadData()
-{
- qt_current_thread_data = 0;
-}
-
-QThreadData *QThreadData::current(bool createIfNecessary)
-{
- static bool winmainThread = true;
- QThreadData *threadData = qt_current_thread_data;
- if (!threadData && createIfNecessary) {
- threadData = new QThreadData;
- // This needs to be called prior to new AdoptedThread() to
- // avoid recursion.
- qt_current_thread_data = threadData;
- QT_TRY {
- threadData->thread = new QAdoptedThread(threadData);
- } QT_CATCH(...) {
- qt_current_thread_data = 0;
- threadData->deref();
- threadData = 0;
- QT_RETHROW;
- }
- threadData->deref();
- threadData->isAdopted = true;
- threadData->threadId = reinterpret_cast<Qt::HANDLE>(GetCurrentThreadId());
-
- if (!QCoreApplicationPrivate::theMainThread && !winmainThread)
- QCoreApplicationPrivate::theMainThread = threadData->thread;
-
- if (winmainThread) {
- g->dispatch();
- threadData->thread->d_func()->createEventDispatcher(threadData);
- winmainThread = false;
- }
- }
-
- return threadData;
-}
-
-void QAdoptedThread::init()
-{
- Q_D(QThread);
-
- d->handle = Q_NULLPTR;
- d->id = 0;
-}
-
-/**************************************************************************
- ** QThreadPrivate
- *************************************************************************/
-
-#endif // QT_NO_THREAD
-
-void QThreadPrivate::createEventDispatcher(QThreadData *data)
-{
- QEventDispatcherWinRT *eventDispatcher = new QEventDispatcherWinRT;
- data->eventDispatcher.storeRelease(eventDispatcher);
- eventDispatcher->startingUp();
-}
-
-#ifndef QT_NO_THREAD
-
-HRESULT QThreadPrivate::start(IAsyncAction *)
-{
- Q_Q(QThread);
-
- qt_current_thread_data = data;
- id = GetCurrentThreadId();
- data->threadId = reinterpret_cast<Qt::HANDLE>(id);
- QThread::setTerminationEnabled(false);
-
- {
- QMutexLocker locker(&mutex);
- data->quitNow = exited;
- }
-
- if (data->eventDispatcher.load())
- data->eventDispatcher.load()->startingUp();
- else
- createEventDispatcher(data);
-
- running = true;
- emit q->started(QThread::QPrivateSignal());
-
- QThread::setTerminationEnabled(true);
-
- q->run();
-
- finish();
-
- return S_OK;
-}
-
-void QThreadPrivate::finish(bool lockAnyway)
-{
- Q_Q(QThread);
-
- QMutexLocker locker(lockAnyway ? &mutex : 0);
- isInFinish = true;
- priority = QThread::InheritPriority;
- void **tls_data = reinterpret_cast<void **>(&data->tls);
- locker.unlock();
- emit q->finished(QThread::QPrivateSignal());
- QCoreApplication::sendPostedEvents(0, QEvent::DeferredDelete);
- QThreadStorageData::finish(tls_data);
- locker.relock();
-
- QAbstractEventDispatcher *eventDispatcher = data->eventDispatcher.load();
- if (eventDispatcher) {
- data->eventDispatcher = 0;
- locker.unlock();
- eventDispatcher->closingDown();
- delete eventDispatcher;
- locker.relock();
- }
-
- running = false;
- finished = true;
- isInFinish = false;
- interruptionRequested = false;
-
- if (!waiters) {
- if (handle)
- handle->Release();
- handle = Q_NULLPTR;
- }
-
- id = 0;
-}
-
-/**************************************************************************
- ** QThread
- *************************************************************************/
-
-Qt::HANDLE QThread::currentThreadId() Q_DECL_NOTHROW
-{
- return reinterpret_cast<Qt::HANDLE>(GetCurrentThreadId());
-}
-
-int QThread::idealThreadCount() Q_DECL_NOTHROW
-{
- SYSTEM_INFO sysinfo;
- GetNativeSystemInfo(&sysinfo);
- return sysinfo.dwNumberOfProcessors;
-}
-
-void QThread::yieldCurrentThread()
-{
- msleep(1);
-}
-
-void QThread::sleep(unsigned long secs)
-{
- msleep(secs * 1000);
-}
-
-void QThread::msleep(unsigned long msecs)
-{
- WaitForSingleObjectEx(GetCurrentThread(), msecs, FALSE);
-}
-
-void QThread::usleep(unsigned long usecs)
-{
- msleep((usecs / 1000) + 1);
-}
-
-void QThread::start(Priority priority)
-{
- Q_D(QThread);
- QMutexLocker locker(&d->mutex);
-
- if (d->isInFinish) {
- locker.unlock();
- wait();
- locker.relock();
- }
-
- if (d->running)
- return;
-
- d->finished = false;
- d->exited = false;
- d->returnCode = 0;
- d->interruptionRequested = false;
- d->priority = priority == QThread::InheritPriority ? currentThread()->priority() : priority;
- g->push(d);
- g->dispatch();
-
- locker.unlock();
- while (!d->running && !d->finished) {
- QAbstractEventDispatcher *eventDispatcher = QThread::currentThread()->eventDispatcher();
- if (eventDispatcher)
- eventDispatcher->processEvents(QEventLoop::AllEvents);
- else
- yieldCurrentThread();
- }
-}
-
-void QThread::terminate()
-{
- Q_D(QThread);
- QMutexLocker locker(&d->mutex);
- if (!d->running)
- return;
- if (!d->terminationEnabled) {
- d->terminatePending = true;
- return;
- }
-
- if (d->handle) {
- ComPtr<IAsyncInfo> info;
- HRESULT hr = d->handle->QueryInterface(IID_PPV_ARGS(&info));
- Q_ASSERT_SUCCEEDED(hr);
- hr = info->Cancel();
- if (FAILED(hr))
- qErrnoWarning(hr, "Failed to cancel thread action");
- }
-
- d->finish(false);
-}
-
-bool QThread::wait(unsigned long time)
-{
- Q_D(QThread);
- QMutexLocker locker(&d->mutex);
-
- if (d->id == GetCurrentThreadId()) {
- qWarning("QThread::wait: Thread tried to wait on itself");
- return false;
- }
- if (d->finished || !d->running)
- return true;
-
- ++d->waiters;
- locker.mutex()->unlock();
-
- // Alternatively, we could check the handle
- bool ret = false;
- if (!d->finished) {
- QElapsedTimer timer;
- timer.start();
- while (timer.elapsed() < time && !d->finished)
- yieldCurrentThread();
-
- ret = d->finished;
- }
-
- locker.mutex()->lock();
- --d->waiters;
-
- if (ret && !d->finished) {
- // thread was terminated by someone else
-
- d->finish(false);
- }
-
- if (d->finished && !d->waiters) {
- if (d->handle)
- d->handle->Release();
- d->handle = Q_NULLPTR;
- }
-
- return ret;
-}
-
-void QThread::setTerminationEnabled(bool enabled)
-{
- QThread *thr = currentThread();
- Q_ASSERT_X(thr != 0, "QThread::setTerminationEnabled()",
- "Current thread was not started with QThread.");
- QThreadPrivate *d = thr->d_func();
- QMutexLocker locker(&d->mutex);
- d->terminationEnabled = enabled;
- if (enabled && d->terminatePending) {
- d->finish(false);
- locker.unlock(); // don't leave the mutex locked!
- }
-}
-
-// Caller must hold the mutex
-void QThreadPrivate::setPriority(QThread::Priority threadPriority)
-{
- if (running)
- qWarning("WinRT threads can't change priority while running.");
-
- priority = threadPriority;
-}
-
-QT_END_NAMESPACE
-#endif // QT_NO_THREAD