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Diffstat (limited to 'src/corelib/concurrent/qthreadpool_p.h')
-rw-r--r-- | src/corelib/concurrent/qthreadpool_p.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/corelib/concurrent/qthreadpool_p.h b/src/corelib/concurrent/qthreadpool_p.h new file mode 100644 index 0000000..6948ee1 --- /dev/null +++ b/src/corelib/concurrent/qthreadpool_p.h @@ -0,0 +1,107 @@ +/**************************************************************************** +** +** 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 QTHREADPOOL_P_H +#define QTHREADPOOL_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 "QtCore/qmutex.h" +#include "QtCore/qwaitcondition.h" +#include "QtCore/qset.h" +#include "QtCore/qqueue.h" +#include "private/qobject_p.h" + +#ifndef QT_NO_THREAD + +QT_BEGIN_NAMESPACE + +class QThreadPoolThread; +class QThreadPoolPrivate : public QObjectPrivate +{ + Q_DECLARE_PUBLIC(QThreadPool) + friend class QThreadPoolThread; + +public: + QThreadPoolPrivate(); + + bool tryStart(QRunnable *task); + void enqueueTask(QRunnable *task, int priority = 0); + int activeThreadCount() const; + + void tryToStartMoreThreads(); + bool tooManyThreadsActive() const; + + void startThread(QRunnable *runnable = 0); + void reset(); + void waitForDone(); + bool startFrontRunnable(); + void stealRunnable(QRunnable *); + + mutable QMutex mutex; + QWaitCondition runnableReady; + QSet<QThreadPoolThread *> allThreads; + QQueue<QThreadPoolThread *> expiredThreads; + QList<QPair<QRunnable *, int> > queue; + QWaitCondition noActiveThreads; + + bool isExiting; + int expiryTimeout; + int maxThreadCount; + int reservedThreads; + int waitingThreads; + int activeThreads; +}; + +QT_END_NAMESPACE + +#endif // QT_NO_THREAD +#endif |