65 lines
2.9 KiB
C
65 lines
2.9 KiB
C
//============== DAE: OS/2 Database Access Engine ===================
|
|
//============== idb.h: Index Descriptor Block ===================
|
|
|
|
// Flags for IDB
|
|
#define fidbUnique (1<<0) // Duplicate keys not allowed
|
|
#define fidbHasTagged (1<<1) // Has a tagged segment
|
|
#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 IDBSetUnique( pidb ) ( (pidb)->fidb |= fidbUnique )
|
|
#define IDBResetUnique( pidb ) ( (pidb)->fidb &= ~fidbUnique )
|
|
#define FIDBUnique( pidb ) ( (pidb)->fidb & fidbUnique )
|
|
|
|
#define IDBSetHasTagged( pidb ) ( (pidb)->fidb |= fidbHasTagged )
|
|
#define IDBResetHasTagged( pidb ) ( (pidb)->fidb &= ~fidbHasTagged )
|
|
#define FIDBHasTagged( pidb ) ( (pidb)->fidb & fidbHasTagged )
|
|
|
|
#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 )
|
|
|
|
// Index Descriptor Block: information about index key
|
|
struct _idb
|
|
{
|
|
IDXSEG rgidxseg[JET_ccolKeyMost];
|
|
BYTE rgbitIdx[32];
|
|
LANGID langid; // language of index
|
|
CHAR szName[JET_cbNameMost + 1];
|
|
BYTE iidxsegMac;
|
|
BYTE fidb;
|
|
BYTE rgbFiller[2];
|
|
};
|
|
|
|
#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
|