1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
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 The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef QBUFFER_H
41#define QBUFFER_H
42
43#include <QtCore/qiodevice.h>
44#include <QtCore/qbytearray.h>
45
46QT_BEGIN_NAMESPACE
47
48
49class QObject;
50class QBufferPrivate;
51
52class Q_CORE_EXPORT QBuffer : public QIODevice
53{
54#ifndef QT_NO_QOBJECT
55 Q_OBJECT
56#endif
57
58public:
59#ifndef QT_NO_QOBJECT
60 explicit QBuffer(QObject *parent = nullptr);
61 QBuffer(QByteArray *buf, QObject *parent = nullptr);
62#else
63 QBuffer();
64 explicit QBuffer(QByteArray *buf);
65#endif
66 ~QBuffer();
67
68 QByteArray &buffer();
69 const QByteArray &buffer() const;
70 void setBuffer(QByteArray *a);
71
72 void setData(const QByteArray &data);
73 inline void setData(const char *data, int len);
74 const QByteArray &data() const;
75
76 bool open(OpenMode openMode) override;
77
78 void close() override;
79 qint64 size() const override;
80 qint64 pos() const override;
81 bool seek(qint64 off) override;
82 bool atEnd() const override;
83 bool canReadLine() const override;
84
85protected:
86#ifndef QT_NO_QOBJECT
87 void connectNotify(const QMetaMethod &) override;
88 void disconnectNotify(const QMetaMethod &) override;
89#endif
90 qint64 readData(char *data, qint64 maxlen) override;
91 qint64 writeData(const char *data, qint64 len) override;
92
93private:
94 Q_DECLARE_PRIVATE(QBuffer)
95 Q_DISABLE_COPY(QBuffer)
96
97 Q_PRIVATE_SLOT(d_func(), void _q_emitSignals())
98};
99
100inline void QBuffer::setData(const char *adata, int alen)
101{ setData(QByteArray(adata, alen)); }
102
103QT_END_NAMESPACE
104
105#endif // QBUFFER_H
106