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39
40#ifndef QT3DCORE_QTHREADPOOLER_H
41#define QT3DCORE_QTHREADPOOLER_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of other Qt classes. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtCore/QFuture>
55#include <QtCore/QFutureInterface>
56#include <QtCore/QObject>
57#include <QtCore/QSharedPointer>
58#include <QtCore/QThreadPool>
59
60#include <Qt3DCore/private/qaspectjob_p.h>
61#include <Qt3DCore/private/task_p.h>
62
63QT_BEGIN_NAMESPACE
64
65namespace Qt3DCore {
66
67class Q_3DCORE_PRIVATE_EXPORT QThreadPooler : public QObject
68{
69 Q_OBJECT
70
71public:
72 explicit QThreadPooler(QObject *parent = nullptr);
73 ~QThreadPooler();
74
75 QFuture<void> mapDependables(QVector<RunnableInterface *> &taskQueue);
76 int waitForAllJobs();
77 void taskFinished(RunnableInterface *task);
78 QFuture<void> future();
79
80 static int maxThreadCount();
81
82private:
83 void enqueueTasks(const QVector<RunnableInterface *> &tasks);
84 void skipTask(RunnableInterface *task);
85 void enqueueDepencies(RunnableInterface *task);
86 void acquire(int add);
87 void release();
88 int currentCount() const;
89
90private:
91 QFutureInterface<void> *m_futureInterface;
92 QMutex m_mutex;
93 QAtomicInt m_taskCount;
94 QThreadPool *m_threadPool;
95 int m_totalRunJobs;
96};
97
98} // namespace Qt3DCore
99
100QT_END_NAMESPACE
101
102#endif // QT3DCORE_QTHREADPOOLER_H
103

source code of qt3d/src/core/jobs/qthreadpooler_p.h