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more TDB

This commit is contained in:
Hongze Cheng 2022-03-18 09:07:52 +00:00
parent ac620c0dc2
commit 6a8424b671
3 changed files with 39 additions and 37 deletions
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11
source/libs/tdb/src/page/tdbPage.c
View File

@ -49,13 +49,9 @@ int tdbPageCreate(int pageSize, SPage **ppPage, void *(*xMalloc)(void *, size_t)
pPage->pData = ptr;
pPage->pageSize = pageSize;
if (pageSize < 65536) {
pPage->szOffset = 2;
pPage->szPageHdr = sizeof(SPageHdr);
pPage->szFreeCell = sizeof(SFreeCell);
pPage->pPageMethods = &pageMethods;
} else {
pPage->szOffset = 3;
pPage->szPageHdr = sizeof(SPageHdrL);
pPage->szFreeCell = sizeof(SFreeCellL);
pPage->pPageMethods = &pageLargeMethods;
}
TDB_INIT_PAGE_LOCK(pPage);
@ -249,6 +245,9 @@ static inline void setPageCellOffset(SPage *pPage, int idx, int offset) {
}
SPageMethods pageMethods = {
2, // szOffset
sizeof(SPageHdr), // szPageHdr
sizeof(SFreeCell), // szFreeCell
getPageFlags, // getPageFlags
setPageFlags, // setFlagsp
getPageCellNum, // getCellNum

38
source/libs/tdb/src/page/tdbPage.h
View File

@ -24,6 +24,9 @@ typedef u8 SCell;
// PAGE APIS implemented
typedef struct {
int szOffset;
int szPageHdr;
int szFreeCell;
// flags
u16 (*getFlags)(SPage *);
void (*setFlags)(SPage *, u16);
@ -56,26 +59,23 @@ struct SPage {
pthread_spinlock_t lock;
u8 *pData;
int pageSize;
u8 szOffset;
u8 szPageHdr;
u8 szFreeCell;
SPageMethods *pPageMethods;
// Fields below used by pager and am
u8 szAmHdr;
u8 *pPageHdr;
u8 *pAmHdr;
u8 *pCellIdx;
u8 *pFreeStart;
u8 *pFreeEnd;
SPageFtr *pPageFtr;
int kLen; // key length of the page, -1 for unknown
int vLen; // value length of the page, -1 for unknown
int nFree;
int maxLocal;
int minLocal;
int nOverflow;
SCell *apOvfl[4];
int aiOvfl[4];
SPageMethods *pPageMethods;
u8 szAmHdr;
u8 *pPageHdr;
u8 *pAmHdr;
u8 *pCellIdx;
u8 *pFreeStart;
u8 *pFreeEnd;
SPageFtr *pPageFtr;
int kLen; // key length of the page, -1 for unknown
int vLen; // value length of the page, -1 for unknown
int nFree;
int maxLocal;
int minLocal;
int nOverflow;
SCell *apOvfl[4];
int aiOvfl[4];
// Fields used by SPCache
TDB_PCACHE_PAGE
};

27
source/libs/tdb/src/page/tdbPageL.c
View File

@ -67,16 +67,19 @@ static inline void setPageCellOffset(SPage *pPage, int idx, int offset) {
}
SPageMethods pageLargeMethods = {
getPageFlags, // getPageFlags
setPageFlags, // setFlagsp
getPageCellNum, // getCellNum
setPageCellNum, // setCellNum
getPageCellBody, // getCellBody
setPageCellBody, // setCellBody
getPageCellFree, // getCellFree
setPageCellFree, // setCellFree
getPageNFree, // getFreeBytes
setPageNFree, // setFreeBytes
getPageCellOffset, // getCellOffset
setPageCellOffset // setCellOffset
3, // szOffset
sizeof(SPageHdrL), // szPageHdr
sizeof(SFreeCellL), // szFreeCell
getPageFlags, // getPageFlags
setPageFlags, // setFlagsp
getPageCellNum, // getCellNum
setPageCellNum, // setCellNum
getPageCellBody, // getCellBody
setPageCellBody, // setCellBody
getPageCellFree, // getCellFree
setPageCellFree, // setCellFree
getPageNFree, // getFreeBytes
setPageNFree, // setFreeBytes
getPageCellOffset, // getCellOffset
setPageCellOffset // setCellOffset
};