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