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39
40#ifndef QTLV_P_H
41#define QTLV_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include "qtnfcglobal.h"
55
56#include "qnearfieldtarget.h"
57
58#include <QtCore/QByteArray>
59#include <QtCore/QMap>
60#include <QtCore/QPair>
61
62QT_BEGIN_NAMESPACE
63
64class QNearFieldTarget;
65class Q_AUTOTEST_EXPORT QTlvReader
66{
67public:
68 explicit QTlvReader(QNearFieldTarget *target);
69 explicit QTlvReader(const QByteArray &data);
70
71 void addReservedMemory(int offset, int length);
72 int reservedMemorySize() const;
73
74 QNearFieldTarget::RequestId requestId() const;
75
76 bool atEnd() const;
77
78 bool readNext();
79
80 quint8 tag() const;
81 int length();
82 QByteArray data();
83
84private:
85 bool readMoreData(int sparseOffset);
86 int absoluteOffset(int sparseOffset) const;
87 int dataLength(int startOffset) const;
88
89 QNearFieldTarget *m_target;
90 QByteArray m_rawData;
91 QNearFieldTarget::RequestId m_requestId;
92
93 QByteArray m_tlvData;
94 int m_index;
95 QMap<int, int> m_reservedMemory;
96};
97
98class QTlvWriter
99{
100public:
101 explicit QTlvWriter(QNearFieldTarget *target);
102 explicit QTlvWriter(QByteArray *data);
103 ~QTlvWriter();
104
105 void addReservedMemory(int offset, int length);
106
107 void writeTlv(quint8 tag, const QByteArray &data = QByteArray());
108
109 bool process(bool all = false);
110
111 QNearFieldTarget::RequestId requestId() const;
112
113private:
114 int moveToNextAvailable();
115
116 QNearFieldTarget *m_target;
117 QByteArray *m_rawData;
118
119 int m_index;
120 int m_tagMemorySize;
121 QMap<int, int> m_reservedMemory;
122
123 QByteArray m_buffer;
124
125 QNearFieldTarget::RequestId m_requestId;
126};
127
128QPair<int, int> qParseReservedMemoryControlTlv(const QByteArray &tlvData);
129QPair<int, int> qParseLockControlTlv(const QByteArray &tlvData);
130
131QT_END_NAMESPACE
132
133#endif // QTLV_P_H
134

source code of qtconnectivity/src/nfc/qtlv_p.h