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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** 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.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of internal files. This header file may change from version to version
// without notice, or even be removed.
//
// We mean it.
//
#ifndef QSCOPEDPOINTER_P_H
#define QSCOPEDPOINTER_P_H
#include "QtCore/qscopedpointer.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Core)
/* Internal helper class - exposes the data through data_ptr (legacy from QShared).
Required for some internal Qt classes, do not use otherwise. */
template <typename T, typename Cleanup = QScopedPointerDeleter<T> >
class QCustomScopedPointer : public QScopedPointer<T, Cleanup>
{
public:
explicit inline QCustomScopedPointer(T *p = 0)
: QScopedPointer<T, Cleanup>(p)
{
}
inline T *&data_ptr()
{
return this->d;
}
inline bool operator==(const QCustomScopedPointer<T, Cleanup> &other) const
{
return this->d == other.d;
}
inline bool operator!=(const QCustomScopedPointer<T, Cleanup> &other) const
{
return this->d != other.d;
}
private:
Q_DISABLE_COPY(QCustomScopedPointer)
};
/* Internal helper class - a handler for QShared* classes, to be used in QCustomScopedPointer */
template <typename T>
class QScopedPointerSharedDeleter
{
public:
static inline void cleanup(T *d)
{
if (d && !d->ref.deref())
delete d;
}
};
/* Internal.
This class is basically a scoped pointer pointing to a ref-counted object
*/
template <typename T>
class QScopedSharedPointer : public QCustomScopedPointer<T, QScopedPointerSharedDeleter<T> >
{
public:
explicit inline QScopedSharedPointer(T *p = 0)
: QCustomScopedPointer<T, QScopedPointerSharedDeleter<T> >(p)
{
}
inline void detach()
{
qAtomicDetach(this->d);
}
inline void assign(T *other)
{
if (this->d == other)
return;
if (other)
other->ref.ref();
T *oldD = this->d;
this->d = other;
QScopedPointerSharedDeleter<T>::cleanup(oldD);
}
inline bool operator==(const QScopedSharedPointer<T> &other) const
{
return this->d == other.d;
}
inline bool operator!=(const QScopedSharedPointer<T> &other) const
{
return this->d != other.d;
}
private:
Q_DISABLE_COPY(QScopedSharedPointer)
};
QT_END_NAMESPACE
QT_END_HEADER
#endif
|