winamp/Src/nde/Field.h

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2024-09-24 12:54:57 +00:00
/* ---------------------------------------------------------------------------
Nullsoft Database Engine
--------------------
codename: Near Death Experience
--------------------------------------------------------------------------- */
/* ---------------------------------------------------------------------------
Field Class Prototypes
--------------------------------------------------------------------------- */
#ifndef __FIELD_H
#define __FIELD_H
#ifdef __ANDROID__
#include <foundation/types.h> // TODO
#else
#include <bfc/platform/types.h>
#endif
class Table;
#include <stdio.h>
#define PUT_INT(y) data[pos]=(uint8_t)(y&255); data[pos+1]=(uint8_t)((y>>8)&255); data[pos+2]=(uint8_t)((y>>16)&255); data[pos+3]=(uint8_t)((y>>24)&255)
#define GET_INT() (int)(data[pos]|(data[pos+1]<<8)|(data[pos+2]<<16)|(data[pos+3]<<24))
#define PUT_SHORT(y) data[pos]=(uint8_t)(y&255); data[pos+1]=(uint8_t)((y>>8)&255);
#define GET_SHORT() (uint16_t)(data[pos]|(data[pos+1]<<8))
#define PUT_PINT(y) data[*pos]=(uint8_t)(y&255); data[*pos+1]=(uint8_t)((y>>8)&255); data[*pos+2]=(uint8_t)((y>>16)&255); data[*pos+3]=(uint8_t)((y>>24)&255)
extern float GET_FLOAT(const uint8_t *data, size_t pos);
extern void PUT_FLOAT(float f, uint8_t *data, size_t pos);
extern void PUT_BINARY(uint8_t *dest, const uint8_t *src, size_t size, size_t pos);
extern void GET_BINARY(uint8_t *dest, const uint8_t *src, size_t size, size_t pos);
#define PUT_CHAR(y) data[pos]=y
#define GET_CHAR() data[pos]
#define CHECK_CHAR(l) { if (l < 1) return; l--; }
#define CHECK_INT(l) { if (l < 4) return; l-=4; }
#define CHECK_INT64(l) { if (l < 8) return; l-=8; }
#define CHECK_SHORT(l) { if (l < 2) return; l-=2; }
#define CHECK_BIN(l, size) { if (l < size) return; l-=size; }
#ifdef ASSERT
#undef ASSERT
#endif
#define ASSERT(x) { \
if (!(x)) \
OutputDebugString("Assertion failed "); \
}
#define _CHECK_CHAR(l) { ASSERT(l >= 1); l-=1; }
#define _CHECK_INT(l) { ASSERT(l >= 4); l-=4; }
#define _CHECK_SHORT(l) { ASSERT(l >= 2); l-=2; }
#define _CHECK_BIN(l, size) { ASSERT(l >= size); l-=size; }
class Field //: public wa::lists::node_ptr
{
public:
Field();
virtual ~Field();
virtual Field *Clone(Table *pTable);
unsigned char GetFieldId(void)
{
return ID;
}
int GetType();
size_t GetTotalSize();
Field(int FieldPos);
Field *ReadField(Table *pTable, int pos, uint32_t *next_position=0);
Field *ReadField(Table *pTable, int pos, bool readTyped, uint32_t *next_position=0);
void WriteField(Table *pTable, Field *previous_field, Field *next_field);
virtual void ReadTypedData(const uint8_t *, size_t /*len*/) { };
virtual void WriteTypedData(uint8_t *, size_t) { };
virtual size_t GetDataSize(void)
{
return 0;
}
virtual int Compare(Field * /*Entry*/)
{
return 0;
}
virtual int Starts(Field * /*Entry*/)
{
return 0;
}
virtual int Contains(Field * /*Entry*/)
{
return 0;
}
virtual bool ApplyFilter(Field * /*Data*/, int /*flags*/)
{
return false;
}
uint32_t GetFieldPos(void);
void InitField(void);
union
{
struct
{
uint8_t ID;
uint8_t Type;
};
uint32_t _dummy_union_thingy;
};
protected:
uint32_t Pos;
uint32_t MaxSizeOnDisk;
};
#endif