93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
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#ifndef IDM_H
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#define IDM_H
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#include <QObject>
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#include <QByteArray>
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#include <QMutex>
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#include "int.h"
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class Idm : public QObject
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{
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Q_OBJECT
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public:
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enum Flags
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{
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FIXED_KEY_LEN = 1
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};
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static const QByteArray TAG;
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static const int MAX_MAJOR;
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static const int MAX_MINOR;
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static int CURRENT_MAJOR;
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static int CURRENT_MINOR;
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static int DEFAULT_INT_SIZE;
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static int DEFAULT_FLAGS;
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static int DEFAULT_KEY_LEN;
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static bool verifyExHeader(const QByteArray &data, int major, int minor);
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static bool rdExHeader(const QByteArray &data, int &major, int &minor, int &intSz, int &flgs, int &keyLen);
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static QByteArray buildHeader(int major, int minor, int intSz, int flgs, int keyLen);
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explicit Idm(const QByteArray &data, QObject *parent = 0);
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explicit Idm(QObject *parent = 0);
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void setVersion(int major, int minor);
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void setFlags(int flgs);
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void setIntSize(int bytes);
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void wrHeader();
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void setKeyLen(int len);
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void loadData(const QByteArray &data);
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bool insert(const QByteArray &key, const QByteArray &data);
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bool insert(quint64 key, quint64 num);
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bool insert(quint64 key, const QByteArray &data);
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bool remove(const QByteArray &key);
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bool remove(quint64 key);
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bool rdHeader();
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bool rdExHeader(const QByteArray &data);
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quint64 intValue(quint64 key);
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quint64 intValue(const QByteArray &key);
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QByteArray value(const QByteArray &key);
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QByteArray value(quint64 key);
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QByteArray &getBuff();
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private:
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enum Operation
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{
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RELOAD,
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GET_BUFF,
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RD_HEADER,
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WR_HEADER,
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SET_KEY_LEN,
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SET_FLAGS,
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SET_INT_SIZE,
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SET_VERSION,
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RD_VALUE,
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WR_VALUE,
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RM_VALUE
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};
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QByteArray buffPtr;
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int header;
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int intSize;
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int keyLen;
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int flags;
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void op(Operation opr,
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const QByteArray &inA = QByteArray(),
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const QByteArray &inB = QByteArray(),
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QByteArray *out = 0,
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int intA = 0,
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int intB = 0,
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bool *ok = 0);
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void init();
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bool findKey(int &addr, int &dataLen, const QByteArray &key);
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QByteArray rdData(int, int, bool *ok = 0);
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};
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#endif // IDM_H
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