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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@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();
bool waitForDone(int msecs = -1);
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
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