Qt 4.8
qwaitcondition.h
Go to the documentation of this file.
1 /****************************************************************************
2 **
3 ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/legal
5 **
6 ** This file is part of the QtCore module of the Qt Toolkit.
7 **
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** Commercial License Usage
10 ** Licensees holding valid commercial Qt licenses may use this file in
11 ** accordance with the commercial license agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia. For licensing terms and
14 ** conditions see http://qt.digia.com/licensing. For further information
15 ** use the contact form at http://qt.digia.com/contact-us.
16 **
17 ** GNU Lesser General Public License Usage
18 ** Alternatively, this file may be used under the terms of the GNU Lesser
19 ** General Public License version 2.1 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPL included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 2.1 requirements
23 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24 **
25 ** In addition, as a special exception, Digia gives you certain additional
26 ** rights. These rights are described in the Digia Qt LGPL Exception
27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28 **
29 ** GNU General Public License Usage
30 ** Alternatively, this file may be used under the terms of the GNU
31 ** General Public License version 3.0 as published by the Free Software
32 ** Foundation and appearing in the file LICENSE.GPL included in the
33 ** packaging of this file. Please review the following information to
34 ** ensure the GNU General Public License version 3.0 requirements will be
35 ** met: http://www.gnu.org/copyleft/gpl.html.
36 **
37 **
38 ** $QT_END_LICENSE$
39 **
40 ****************************************************************************/
41 
42 #ifndef QWAITCONDITION_H
43 #define QWAITCONDITION_H
44 
45 #include <QtCore/qglobal.h>
46 
47 #include <limits.h>
48 
50 
52 
53 QT_MODULE(Core)
54 
55 #ifndef QT_NO_THREAD
56 
58 class QMutex;
59 class QReadWriteLock;
60 
62 {
63 public:
65  ~QWaitCondition();
66 
67  bool wait(QMutex *mutex, unsigned long time = ULONG_MAX);
68  bool wait(QReadWriteLock *readWriteLock, unsigned long time = ULONG_MAX);
69 
70  void wakeOne();
71  void wakeAll();
72 
73 private:
75 
77 };
78 
79 #else
80 
81 class QMutex;
83 {
84 public:
85  QWaitCondition() {}
86  ~QWaitCondition() {}
87 
88  bool wait(QMutex *mutex, unsigned long time = ULONG_MAX)
89  {
90  Q_UNUSED(mutex);
91  Q_UNUSED(time);
92  return true;
93  }
94 
95  void wakeOne() {}
96  void wakeAll() {}
97 };
98 
99 #endif // QT_NO_THREAD
100 
102 
104 
105 #endif // QWAITCONDITION_H
double d
Definition: qnumeric_p.h:62
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
The QMutex class provides access serialization between threads.
Definition: qmutex.h:60
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
#define Q_CORE_EXPORT
Definition: qglobal.h:1449
The QReadWriteLock class provides read-write locking.
#define QT_END_HEADER
Definition: qglobal.h:137
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729