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Diffstat (limited to 'src/corelib/thread/qthread_p.h')
| -rw-r--r-- | src/corelib/thread/qthread_p.h | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/corelib/thread/qthread_p.h b/src/corelib/thread/qthread_p.h new file mode 100644 index 0000000000..75293cee83 --- /dev/null +++ b/src/corelib/thread/qthread_p.h @@ -0,0 +1,215 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QTHREAD_P_H +#define QTHREAD_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// +// + +#include "qplatformdefs.h" +#include "QtCore/qthread.h" +#include "QtCore/qmutex.h" +#include "QtCore/qstack.h" +#include "QtCore/qwaitcondition.h" +#include "QtCore/qmap.h" +#include "private/qobject_p.h" + +QT_BEGIN_NAMESPACE + +class QAbstractEventDispatcher; +class QEventLoop; + +class QPostEvent +{ +public: + QObject *receiver; + QEvent *event; + int priority; + inline QPostEvent() + : receiver(0), event(0), priority(0) + { } + inline QPostEvent(QObject *r, QEvent *e, int p) + : receiver(r), event(e), priority(p) + { } +}; +inline bool operator<(int priority, const QPostEvent &pe) +{ + return pe.priority < priority; +} +inline bool operator<(const QPostEvent &pe, int priority) +{ + return priority < pe.priority; +} + +class QPostEventList : public QList<QPostEvent> +{ +public: + // recursion == recursion count for sendPostedEvents() + int recursion; + + // sendOffset == the current event to start sending + int startOffset; + // insertionOffset == set by sendPostedEvents to tell postEvent() where to start insertions + int insertionOffset; + + QMutex mutex; + + inline QPostEventList() + : QList<QPostEvent>(), recursion(0), startOffset(0), insertionOffset(0) + { } +}; + +class Q_CORE_EXPORT QThreadData +{ + QAtomicInt _ref; + +public: + QThreadData(int initialRefCount = 1); + ~QThreadData(); + + static QThreadData *current(); + static QThreadData *get2(QThread *thread); + + void ref(); + void deref(); + + QThread *thread; + bool quitNow; + int loopLevel; + QAbstractEventDispatcher *eventDispatcher; + QStack<QEventLoop *> eventLoops; + QPostEventList postEventList; + bool canWait; + QMap<int, void *> tls; + + QMutex mutex; +}; + +#ifndef QT_NO_THREAD +class QThreadPrivate : public QObjectPrivate +{ + Q_DECLARE_PUBLIC(QThread) + +public: + QThreadPrivate(QThreadData *d = 0); + ~QThreadPrivate(); + + mutable QMutex mutex; + + bool running; + bool finished; + bool terminated; + + uint stackSize; + QThread::Priority priority; + + static QThread *threadForId(int id); + +#ifdef Q_OS_UNIX + pthread_t thread_id; + QWaitCondition thread_done; + + static void *start(void *arg); + static void finish(void *arg); +#endif + +#if defined(Q_OS_WIN32) || defined(Q_OS_WINCE) + HANDLE handle; + unsigned int id; + int waiters; + bool terminationEnabled, terminatePending; + + static unsigned int __stdcall start(void *); + static void finish(void *, bool lockAnyway=true); +#endif // Q_OS_WIN32 + + QThreadData *data; + + static void createEventDispatcher(QThreadData *data); +}; + +// thread wrapper for the main() thread +class QAdoptedThread : public QThread +{ + Q_DECLARE_PRIVATE(QThread) + +public: + QAdoptedThread(QThreadData *data = 0); + ~QAdoptedThread(); + void init(); + + static QThread *createThreadForAdoption(); +private: + void run(); +}; + +#else // QT_NO_THREAD + +class QThreadPrivate : public QObjectPrivate +{ +public: + QThreadPrivate() : data(QThreadData::current()) {} + ~QThreadPrivate() { } + + QThreadData *data; + + static void setCurrentThread(QThread*) {} + static QThread *threadForId(int) { return QThread::currentThread(); } + static void createEventDispatcher(QThreadData *data); + + Q_DECLARE_PUBLIC(QThread) +}; + +#endif // QT_NO_THREAD + +QT_END_NAMESPACE + +#endif // QTHREAD_P_H |