QRunnable Class

QRunnable class is the base class for all runnable objects. 更多...

头：	#include <QRunnable>
qmake:	QT += core
Since:	Qt 4.4

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公共函数

	QRunnable ()
virtual	~QRunnable ()
bool	autoDelete () const
virtual void	run () = 0
void	setAutoDelete (bool autoDelete )

详细描述

QRunnable class is the base class for all runnable objects.

QRunnable class is an interface for representing a task or piece of code that needs to be executed, represented by your reimplementation of the run () 函数。

可以使用 QThreadPool to execute your code in a separate thread. QThreadPool deletes the QRunnable automatically if autoDelete () 返回 true (the default). Use setAutoDelete () 以改变自动删除标志。

QThreadPool supports executing the same QRunnable 多次通过调用 QThreadPool::tryStart (this) from within the run () function. If autoDelete is enabled the QRunnable 将被删除当最后一个线程退出 run 函数时。调用 QThreadPool::start () multiple times with the same QRunnable when autoDelete is enabled creates a race condition and is not recommended.

另请参阅 QThreadPool .

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QRunnable:: QRunnable ()

构造 QRunnable . Auto-deletion is enabled by default.

另请参阅 autoDelete () 和 setAutoDelete ().

`[virtual]` QRunnable:: ~QRunnable ()

QRunnable virtual destructor.

bool QRunnable:: autoDelete () const

返回 true is auto-deletion is enabled; false otherwise.

If auto-deletion is enabled, QThreadPool will automatically delete this runnable after calling run (); otherwise, ownership remains with the application programmer.

另请参阅 setAutoDelete () 和 QThreadPool .

`[pure virtual]` void QRunnable:: run ()

Implement this pure virtual function in your subclass.

void QRunnable:: setAutoDelete ( bool autoDelete )

Enables auto-deletion if autoDelete is true; otherwise auto-deletion is disabled.