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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
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

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