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more TDB

This commit is contained in:
Hongze Cheng 2022-03-11 08:34:04 +00:00
parent 5eb04e9f2b
commit 5f39e29429
1 changed files with 10 additions and 0 deletions
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10
source/libs/tdb/src/inc/tdbPage.h
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@ -71,10 +71,20 @@ struct SPage {
// Macros
/* For small page */
#define TDB_SPAGE_FLAGS(pPage) (((SPageHdr *)(pPage)->pPageHdr)->flags)
#define TDB_SPAGE_NCELLS(pPage) (((SPageHdr *)(pPage)->pPageHdr)->nCells)
/* For large page */
#define TDB_LPAGE_FLAGS(pPage) (((SLPageHdr *)(pPage)->pPageHdr)->flags)
#define TDB_LPAGE_NCELLS(pPage) \
({ \
u8 *ptr = ((SLPageHdr *)(pPage)->pPageHdr)->nCells; \
ptr[0] * 65536 + *(u16 *)(&ptr[1]); \
})
/* For page */
#define TDB_IS_LARGE_PAGE(pPage) ((pPage)->szOffset == 3)
#define TDB_PAGE_FLAGS(pPage) (TDB_IS_LARGE_PAGE(pPage) ? TDB_LPAGE_FLAGS(pPage)) : TDB_SPAGE_FLAGS(pPage))
#define TDB_PAGE_CELL_OFFSET_AT(pPage, idx) \
(((pPage)->szOffset == 2) ? ((u16 *)((pPage)->aCellIdx))[idx] \
: ((pPage)->aCellIdx[idx * 3] * 65536 + *(u16 *)((pPage)->aCellIdx + idx * 3 + 1)))