78 lines
3.5 KiB
C
78 lines
3.5 KiB
C
|
// Flags for IDB
|
||
|
|
#define fidbUnique (1<<0) // Duplicate keys not allowed
|
||
|
|
#define fidbAllowAllNulls (1<<2) // Make entries for NULL keys (all segments are null)
|
||
|
|
#define fidbAllowSomeNulls (1<<3) // Make entries for keys with some null segments
|
||
|
|
#define fidbNoNullSeg (1<<4) // Don't allow a NULL key segment
|
||
|
|
#define fidbPrimary (1<<5) // Index is the primary index
|
||
|
|
#define fidbLangid (1<<6) // Index langid
|
||
|
|
#define fidbHasMultivalue (1<<7) // Has a multivalued segment
|
||
|
|
#define fidbAllowFirstNull (1<<8) // First index column NULL allowed in index
|
||
|
|
#define fidbClustered (1<<9) // Clustered index
|
||
|
|
|
||
|
|
#define IDBSetUnique( pidb ) ( (pidb)->fidb |= fidbUnique )
|
||
|
|
#define IDBResetUnique( pidb ) ( (pidb)->fidb &= ~fidbUnique )
|
||
|
|
#define FIDBUnique( pidb ) ( (pidb)->fidb & fidbUnique )
|
||
|
|
|
||
|
|
#define IDBSetAllowAllNulls( pidb ) ( (pidb)->fidb |= fidbAllowAllNulls )
|
||
|
|
#define IDBResetAllowAllNulls( pidb ) ( (pidb)->fidb &= ~fidbAllowAllNulls )
|
||
|
|
#define FIDBAllowAllNulls( pidb ) ( (pidb)->fidb & fidbAllowAllNulls )
|
||
|
|
|
||
|
|
#define IDBSetAllowSomeNulls( pidb ) ( (pidb)->fidb |= fidbAllowSomeNulls )
|
||
|
|
#define IDBResetAllowSomeNulls( pidb ) ( (pidb)->fidb &= ~fidbAllowSomeNulls )
|
||
|
|
#define FIDBAllowSomeNulls( pidb ) ( (pidb)->fidb & fidbAllowSomeNulls )
|
||
|
|
|
||
|
|
#define IDBSetNoNullSeg( pidb ) ( (pidb)->fidb |= fidbNoNullSeg )
|
||
|
|
#define IDBResetNoNullSeg( pidb ) ( (pidb)->fidb &= ~fidbNoNullSeg )
|
||
|
|
#define FIDBNoNullSeg( pidb ) ( (pidb)->fidb & fidbNoNullSeg )
|
||
|
|
|
||
|
|
#define IDBSetPrimary( pidb ) ( (pidb)->fidb |= fidbPrimary )
|
||
|
|
#define IDBResetPrimary( pidb ) ( (pidb)->fidb &= ~fidbPrimary )
|
||
|
|
#define FIDBPrimary( pidb ) ( (pidb)->fidb & fidbPrimary )
|
||
|
|
|
||
|
|
#define IDBSetLangid( pidb ) ( (pidb)->fidb |= fidbLangid )
|
||
|
|
#define IDBResetLangid( pidb ) ( (pidb)->fidb &= ~fidbLangid )
|
||
|
|
#define FIDBLangid( pidb ) ( (pidb)->fidb & fidbLangid )
|
||
|
|
|
||
|
|
#define IDBSetMultivalued( pidb ) ( (pidb)->fidb |= fidbMultivalued )
|
||
|
|
#define IDBResetMultivalued( pidb ) ( (pidb)->fidb &= ~fidbMultivalued )
|
||
|
|
#define FIDBMultivalued( pidb ) ( (pidb)->fidb & fidbMultivalued )
|
||
|
|
|
||
|
|
#define IDBSetAllowFirstNull( pidb ) ( (pidb)->fidb |= fidbAllowFirstNull )
|
||
|
|
#define IDBResetAllowFirstNull( pidb ) ( (pidb)->fidb &= ~fidbAllowFirstNull )
|
||
|
|
#define FIDBAllowFirstNull( pidb ) ( (pidb)->fidb & fidbAllowFirstNull )
|
||
|
|
|
||
|
|
#define IDBSetClustered( pidb ) ( (pidb)->fidb |= fidbClustered )
|
||
|
|
#define IDBResetClustered( pidb ) ( (pidb)->fidb &= ~fidbClustered )
|
||
|
|
#define FIDBClustered( pidb ) ( (pidb)->fidb & fidbClustered )
|
||
|
|
|
||
|
|
/* Index Descriptor Block: information about index key
|
||
|
|
/**/
|
||
|
|
struct _idb
|
||
|
|
{
|
||
|
|
BYTE rgbitIdx[32]; // bit array for index columns
|
||
|
|
CHAR szName[JET_cbNameMost + 1]; // index name
|
||
|
|
BYTE cbVarSegMac; // maximum variable segment size
|
||
|
|
SHORT fidb; // index flags
|
||
|
|
IDXSEG rgidxseg[JET_ccolKeyMost]; // array of columnid for index
|
||
|
|
LANGID langid; // language of index
|
||
|
|
SHORT iidxsegMac; // number of columns in index
|
||
|
|
};
|
||
|
|
|
||
|
|
STATIC INLINE VOID IDBSetColumnIndex( IDB * pidb, FID fid )
|
||
|
|
{
|
||
|
|
pidb->rgbitIdx[IbFromFid( fid )] |= IbitFromFid( fid );
|
||
|
|
}
|
||
|
|
|
||
|
|
STATIC INLINE BOOL FIDBColumnIndex( const IDB * pidb, FID fid )
|
||
|
|
{
|
||
|
|
return (pidb->rgbitIdx[IbFromFid( fid )] & IbitFromFid( fid ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
#define PidbMEMAlloc() (IDB*)PbMEMAlloc(iresIDB)
|
||
|
|
|
||
|
|
#ifdef DEBUG /* Debug check for illegal use of freed idb */
|
||
|
|
#define MEMReleasePidb( pidb ) { MEMRelease( iresIDB, (BYTE*)(pidb) ); pidb = pidbNil; }
|
||
|
|
#else
|
||
|
|
#define MEMReleasePidb( pidb ) { MEMRelease( iresIDB, (BYTE*)(pidb) ); }
|
||
|
|
#endif
|