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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
**
****************************************************************************/
#ifndef QT3DCORE_QTHREADPOOLER_H
#define QT3DCORE_QTHREADPOOLER_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/QFuture>
#include <QtCore/QFutureInterface>
#include <QtCore/QObject>
#include <QtCore/QSharedPointer>
#include <QtCore/QThreadPool>
#include <Qt3DCore/private/qaspectjob_p.h>
#include <Qt3DCore/private/task_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DCore {
class Q_3DCORE_PRIVATE_EXPORT QThreadPooler : public QObject
{
Q_OBJECT
public:
explicit QThreadPooler(QObject *parent = nullptr);
~QThreadPooler();
QFuture<void> mapDependables(QVector<RunnableInterface *> &taskQueue);
int waitForAllJobs();
void taskFinished(RunnableInterface *task);
QFuture<void> future();
static int maxThreadCount();
private:
void enqueueTasks(const QVector<RunnableInterface *> &tasks);
void skipTask(RunnableInterface *task);
void enqueueDepencies(RunnableInterface *task);
void acquire(int add);
void release();
int currentCount() const;
private:
QFutureInterface<void> *m_futureInterface;
QMutex m_mutex;
QAtomicInt m_taskCount;
QThreadPool *m_threadPool;
int m_totalRunJobs;
};
} // namespace Qt3DCore
QT_END_NAMESPACE
#endif // QT3DCORE_QTHREADPOOLER_H
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