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39
40#ifndef QTHREADPOOL_H
41#define QTHREADPOOL_H
42
43#include <QtCore/qglobal.h>
44
45#include <QtCore/qthread.h>
46#include <QtCore/qrunnable.h>
47
48#include <functional>
49
50QT_REQUIRE_CONFIG(thread);
51
52QT_BEGIN_NAMESPACE
53
54
55class QThreadPoolPrivate;
56class Q_CORE_EXPORT QThreadPool : public QObject
57{
58 Q_OBJECT
59 Q_DECLARE_PRIVATE(QThreadPool)
60 Q_PROPERTY(int expiryTimeout READ expiryTimeout WRITE setExpiryTimeout)
61 Q_PROPERTY(int maxThreadCount READ maxThreadCount WRITE setMaxThreadCount)
62 Q_PROPERTY(int activeThreadCount READ activeThreadCount)
63 Q_PROPERTY(uint stackSize READ stackSize WRITE setStackSize)
64 friend class QFutureInterfaceBase;
65
66public:
67 QThreadPool(QObject *parent = nullptr);
68 ~QThreadPool();
69
70 static QThreadPool *globalInstance();
71
72 void start(QRunnable *runnable, int priority = 0);
73 bool tryStart(QRunnable *runnable);
74
75 void start(std::function<void()> functionToRun, int priority = 0);
76 bool tryStart(std::function<void()> functionToRun);
77
78 int expiryTimeout() const;
79 void setExpiryTimeout(int expiryTimeout);
80
81 int maxThreadCount() const;
82 void setMaxThreadCount(int maxThreadCount);
83
84 int activeThreadCount() const;
85
86 void setStackSize(uint stackSize);
87 uint stackSize() const;
88
89 void reserveThread();
90 void releaseThread();
91
92 bool waitForDone(int msecs = -1);
93
94 void clear();
95
96 bool contains(const QThread *thread) const;
97
98#if QT_DEPRECATED_SINCE(5, 9)
99 QT_DEPRECATED_X("use tryTake(), but note the different deletion rules")
100 void cancel(QRunnable *runnable);
101#endif
102 Q_REQUIRED_RESULT bool tryTake(QRunnable *runnable);
103};
104
105QT_END_NAMESPACE
106
107#endif
108

source code of qtbase/src/corelib/thread/qthreadpool.h