108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QTHREADPOOL_P_H
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#define QTHREADPOOL_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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//
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#include "QtCore/qmutex.h"
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#include "QtCore/qwaitcondition.h"
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#include "QtCore/qset.h"
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#include "QtCore/qqueue.h"
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#include "private/qobject_p.h"
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#ifndef QT_NO_THREAD
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QT_BEGIN_NAMESPACE
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class QThreadPoolThread;
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class Q_CORE_EXPORT QThreadPoolPrivate : public QObjectPrivate
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{
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Q_DECLARE_PUBLIC(QThreadPool)
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friend class QThreadPoolThread;
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public:
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QThreadPoolPrivate();
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bool tryStart(QRunnable *task);
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void enqueueTask(QRunnable *task, int priority = 0);
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int activeThreadCount() const;
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void tryToStartMoreThreads();
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bool tooManyThreadsActive() const;
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void startThread(QRunnable *runnable = 0);
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void reset();
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bool waitForDone(int msecs);
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void clear();
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void stealRunnable(QRunnable *);
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mutable QMutex mutex;
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QWaitCondition runnableReady;
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QSet<QThreadPoolThread *> allThreads;
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QQueue<QThreadPoolThread *> expiredThreads;
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QList<QPair<QRunnable *, int> > queue;
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QWaitCondition noActiveThreads;
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bool isExiting;
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int expiryTimeout;
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int maxThreadCount;
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int reservedThreads;
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int waitingThreads;
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int activeThreads;
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};
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QT_END_NAMESPACE
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#endif // QT_NO_THREAD
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#endif
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