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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
48class QObject;
49class QBufferPrivate;
50
51class Q_CORE_EXPORT QBuffer : public QIODevice
52{
53#ifndef QT_NO_QOBJECT
54 Q_OBJECT
55#endif
56
57public:
58#ifndef QT_NO_QOBJECT
59 explicit QBuffer(QObject *parent = nullptr);
60 QBuffer(QByteArray *buf, QObject *parent = nullptr);
61#else
62 QBuffer();
63 explicit QBuffer(QByteArray *buf);
64#endif
65 ~QBuffer();
66
67 QByteArray &buffer();
68 const QByteArray &buffer() const;
69 void setBuffer(QByteArray *a);
70
71 void setData(const QByteArray &data);
72 inline void setData(const char *data, int len);
73 const QByteArray &data() const;
74
75 bool open(OpenMode openMode) override;
76
77 void close() override;
78 qint64 size() const override;
79 qint64 pos() const override;
80 bool seek(qint64 off) override;
81 bool atEnd() const override;
82 bool canReadLine() const override;
83
84protected:
85#ifndef QT_NO_QOBJECT
86 void connectNotify(const QMetaMethod &) override;
87 void disconnectNotify(const QMetaMethod &) override;
88#endif
89 qint64 readData(char *data, qint64 maxlen) override;
90 qint64 writeData(const char *data, qint64 len) override;
91
92private:
93 Q_DECLARE_PRIVATE(QBuffer)
94 Q_DISABLE_COPY(QBuffer)
95
96 Q_PRIVATE_SLOT(d_func(), void _q_emitSignals())
97};
98
99inline void QBuffer::setData(const char *adata, int alen)
100{ setData(QByteArray(adata, alen)); }
101
102QT_END_NAMESPACE
103
104#endif // QBUFFER_H
105

source code of qtbase/src/corelib/io/qbuffer.h