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//============== DAE: OS/2 Database Access Engine ===================
//============== recint.h: Record Manager Internals ===================
#define cbLVIntrinsicMost 1024
#define cbRECRecordMost cbNodeMost - cbNullKeyData - JET_cbKeyMost
// 4044 - 8 - 255 = 3781
#define fidFixedLeast 1
#define fidVarLeast 128
#define fidTaggedLeast 256
#define fidTaggedMost (0x7fff)
#define fidFixedMost (fidVarLeast-1)
#define fidVarMost (fidTaggedLeast-1)
#define FFixedFid(fid) ((fid)<=fidFixedMost && (fid)>=fidFixedLeast)
#define FVarFid(fid) ((fid)<=fidVarMost && (fid)>=fidVarLeast)
#define FTaggedFid(fid) ((fid)<=fidTaggedMost && (fid)>=fidTaggedLeast)
// Used to get offset from 2-byte VarOffset which includes null-bit
#define ibVarOffset(ibVarOffs) ( (ibVarOffs) & 0x0fff)
#define FVarNullBit(ibVarOffs) ( (ibVarOffs) & 0x8000)
#define SetNullBit(ibVarOffs) ( (ibVarOffs) |= 0x8000)
#define ResetNullBit(ibVarOffs) ( (ibVarOffs) &= 0x7fff)
// Used to flip highest bit of signed fields when transforming.
#define maskByteHighBit (1 << (sizeof(BYTE)*8-1))
#define maskWordHighBit (1 << (sizeof(WORD)*8-1))
#define maskDWordHighBit (1L << (sizeof(ULONG)*8-1))
#define bFlipHighBit(b) ((BYTE)((b) ^ maskByteHighBit))
#define wFlipHighBit(w) ((WORD)((w) ^ maskWordHighBit))
#define ulFlipHighBit(ul) ((ULONG)((ul) ^ maskDWordHighBit))
/* The following are disk structures -- so pack 'em
/**/#pragma pack(1)
/* long column id is big-endian long
/**/typedef LONG LID;
/* long value column in record format
/**/typedef struct { BYTE fSeparated; union { LID lid; BYTE rgb[]; }; } LV;
/* long value root data format
/**/typedef struct { ULONG ulReference; ULONG ulSize; } LVROOT;
#pragma pack()
#define fIntrinsic (BYTE)0
#define fSeparate (BYTE)1
#define FFieldIsSLong( pb ) ( ((LV *)(pb))->fSeparated )
#define LidOfLV( pb ) ( ((LV *)(pb))->lid )
#define FlagIntrinsic( pb ) ( ((LV *)(pb))->fSeparated = fIntrinsic )
#define FlagSeparate( pb ) ( ((LV *)(pb))->fSeparated = fSeparate )
#define fLVReference 0
#define fLVDereference 1
#define ErrRECResetSLongValue( pfucb, plid ) \
ErrRECAffectSeparateLV( pfucb, plid, fLVDereference )#define ErrRECReferenceLongValue( pfucb, plid ) \
ErrRECAffectSeparateLV( pfucb, plid, fLVReference )#define ErrRECDereferenceLongValue( pfucb, plid ) \
ErrRECAffectSeparateLV( pfucb, plid, fLVDereference )
/* The following are disk structures -- so pack 'em
/**/#pragma pack(1)
// Record header (beginning of every data record)
typedef struct _rechdr { BYTE fidFixedLastInRec; // highest fixed fid represented in record
BYTE fidVarLastInRec; // highest var fid represented in record
} RECHDR;
// Structure imposed upon a tagged field occurance in a record
typedef struct _tagfld { FID fid; // field id of occurance
WORD cb; // length of following data
BYTE rgb[]; // data (extends off the end of the structure)
} TAGFLD;
#pragma pack()
ULONG UlChecksum( BYTE *pb, ULONG cb );ERR ErrRECChangeIndex( FUCB *pfucb, CHAR *szIndex );BOOL FRECIIllegalNulls( FDB *pfdb, LINE *plineRec );ERR ErrRECIRetrieve( FUCB *pfucb, FID *pfid, ULONG itagSequence, LINE *plineField, ULONG grbit );BOOL FOnCopyBuffer( FUCB *pfucb );ERR ErrRECIModifyField( FUCB *pfucb, FID fid, ULONG itagSequence, LINE *plineField );
ERR ErrRECSetLongField( FUCB *pfucb, FID fid, ULONG itagSequence, LINE *plineField, JET_GRBIT grbit, LONG ibOffset, ULONG ulMax );ERR ErrRECRetrieveSLongField( FUCB *pfucb, LID lid, ULONG ibGraphic, BYTE *pb, ULONG cbMax, ULONG *pcbActual );ERR ErrRECDeleteLongFields( FUCB *pfucb, LINE *plineRecord );ERR ErrRECAffectLongFields( FUCB *pfucb, LINE *plineRecord, INT fAll );
#define fSeparateAll (INT)0
#define fReference (INT)1
#define fDereference (INT)2
#define fDereferenceRemoved (INT)3
#define fDereferenceAdded (INT)4
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