1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\class QRunnable
\since 4.4
\brief The QRunnable class is the base class for all runnable objects.
\ingroup thread
The 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() function.
You can use QThreadPool to execute your code in a separate
thread. QThreadPool deletes the QRunnable automatically if
autoDelete() returns true (the default). Use setAutoDelete() to
change the auto-deletion flag.
QThreadPool supports executing the same QRunnable more than once
by calling QThreadPool::tryStart(this) from within the run() function.
If autoDelete is enabled the QRunnable will be deleted when
the last thread exits the run function. Calling QThreadPool::start()
multiple times with the same QRunnable when autoDelete is enabled
creates a race condition and is not recommended.
\sa QThreadPool
*/
/*! \fn QRunnable::run()
Implement this pure virtual function in your subclass.
*/
/*! \fn QRunnable::QRunnable()
Constructs a QRunnable. Auto-deletion is enabled by default.
\sa autoDelete(), setAutoDelete()
*/
/*! \fn QRunnable::~QRunnable()
QRunnable virtual destructor.
*/
/*! \fn bool QRunnable::autoDelete() const
Returns 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.
\sa setAutoDelete(), QThreadPool
*/
/*! \fn bool QRunnable::setAutoDelete(bool autoDelete)
Enables auto-deletion if \a autoDelete is true; otherwise
auto-deletion is disabled.
If auto-deletion is enabled, QThreadPool will automatically delete
this runnable after calling run(); otherwise, ownership remains
with the application programmer.
Note that this flag must be set before calling
QThreadPool::start(). Calling this function after
QThreadPool::start() results in undefined behavior.
\sa autoDelete(), QThreadPool
*/
|
