xxq250
/
homework-jianmu
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

more TDB

This commit is contained in:
Hongze Cheng 2022-03-11 09:17:28 +00:00
parent 0bf8d78c2a
commit f48449ea9f
1 changed files with 33 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
source/libs/tdb/src/inc/tdbPage.h
View File

@ -73,8 +73,12 @@ struct SPage {
#define TDB_IS_LARGE_PAGE(pPage) ((pPage)->szOffset == 3)
/* For small page */
#define TDB_SPAGE_FLAGS(pPage) (((SPageHdr *)(pPage)->pPageHdr)->flags)
#define TDB_SPAGE_NCELLS(pPage) (((SPageHdr *)(pPage)->pPageHdr)->nCells)
#define TDB_SPAGE_FLAGS(pPage) (((SPageHdr *)(pPage)->pPageHdr)->flags)
#define TDB_SPAGE_NCELLS(pPage) (((SPageHdr *)(pPage)->pPageHdr)->nCells)
#define TDB_SPAGE_CCELLS(pPage) (((SPageHdr *)(pPage)->pPageHdr)->cCells)
#define TDB_SPAGE_FCELL(pPage) (((SPageHdr *)(pPage)->pPageHdr)->fCell)
#define TDB_SPAGE_NFREE(pPage) (((SPageHdr *)(pPage)->pPageHdr)->nFree)
#define TDB_SPAGE_CELL_OFFSET_AT(pPage, idx) ((u16 *)((pPage)->aCellIdx))[idx]
/* For large page */
#define TDB_LPAGE_FLAGS(pPage) (((SLPageHdr *)(pPage)->pPageHdr)->flags)
@ -83,12 +87,35 @@ struct SPage {
u8 *ptr = ((SLPageHdr *)(pPage)->pPageHdr)->nCells; \
ptr[0] * 65536 + *(u16 *)(&ptr[1]); \
})
#define TDB_LPAGE_CCELLS(pPage) \
({ \
u8 *ptr = ((SLPageHdr *)(pPage)->pPageHdr)->cCells; \
ptr[0] * 65536 + *(u16 *)(&ptr[1]); \
})
#define TDB_LPAGE_FCELL(pPage) \
({ \
u8 *ptr = ((SLPageHdr *)(pPage)->pPageHdr)->fCell; \
ptr[0] * 65536 + *(u16 *)(&ptr[1]); \
})
#define TDB_LPAGE_NFREE(pPage) \
({ \
u8 *ptr = ((SLPageHdr *)(pPage)->pPageHdr)->nFree; \
ptr[0] * 65536 + *(u16 *)(&ptr[1]); \
})
#define TDB_LPAGE_CELL_OFFSET_AT(pPage, idx) \
({ \
u8 *ptr = (pPage)->aCellIdx + idx * 3; \
ptr[0] * 65536 + *(u16 *)(&ptr[1]); \
})
/* For page */
#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)))
#define TDB_PAGE_FLAGS(pPage) (TDB_IS_LARGE_PAGE(pPage) ? TDB_LPAGE_FLAGS(pPage)) : TDB_SPAGE_FLAGS(pPage))
#define TDB_PAGE_NCELLS(pPage) (TDB_IS_LARGE_PAGE(pPage) ? TDB_LPAGE_NCELLS(pPage)) : TDB_SPAGE_NCELLS(pPage))
#define TDB_PAGE_CCELLS(pPage) (TDB_IS_LARGE_PAGE(pPage) ? TDB_LPAGE_CCELLS(pPage)) : TDB_SPAGE_CCELLS(pPage))
#define TDB_PAGE_FCELL(pPage) (TDB_IS_LARGE_PAGE(pPage) ? TDB_LPAGE_FCELL(pPage)) : TDB_SPAGE_FCELL(pPage))
#define TDB_PAGE_NFREE(pPage) (TDB_IS_LARGE_PAGE(pPage) ? TDB_LPAGE_NFREE(pPage)) : TDB_SPAGE_NFREE(pPage))
#define TDB_PAGE_CELL_OFFSET_AT(pPage, idx) \
(TDB_IS_LARGE_PAGE(pPage) ? TDB_LPAGE_CELL_OFFSET_AT(pPage, idx) : TDB_SPAGE_CELL_OFFSET_AT(pPage, idx))
#define TDB_PAGE_CELL_AT(pPage, idx) ((pPage)->pData + TDB_PAGE_CELL_OFFSET_AT(pPage, idx))
// For page lock