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more TDB

This commit is contained in:
Hongze Cheng 2022-03-09 09:05:03 +00:00
parent 9663634555
commit ea7b4dcc53
2 changed files with 18 additions and 11 deletions
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2
source/libs/tdb/src/db/tdbPage.c
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@ -15,7 +15,7 @@
#include "tdbInt.h" #include "tdbInt.h"
int tdbPageInsertCell(SPage *pPage, int idx, u8 *pCell, int szCell) { int tdbPageInsertCell(SPage *pPage, int idx, SCell *pCell, int szCell) {
// TODO // TODO
return 0; return 0;
} }

27
source/libs/tdb/src/inc/tdbPage.h
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@ -20,6 +20,12 @@
extern "C" { extern "C" {
#endif #endif
typedef u8 SCell;
typedef struct __attribute__((__packed__)) {
u8 cksm[4];
} SPageFooter;
typedef struct __attribute__((__packed__)) { typedef struct __attribute__((__packed__)) {
u16 flags; u16 flags;
u16 nCells; u16 nCells;
@ -38,15 +44,16 @@ struct SPage {
TDB_PCACHE_PAGE TDB_PCACHE_PAGE
// Fields below used by pager and am // Fields below used by pager and am
SPageHdr *pPageHdr; SPageHdr *pPageHdr;
u16 *aCellIdx; SPageFooter *pPageFooter;
int kLen; u16 *aCellIdx;
int vLen; int kLen;
int maxLocal; int vLen;
int minLocal; int maxLocal;
int nOverflow; int minLocal;
void *apOvfl[4]; int nOverflow;
int aiOvfl[4]; void *apOvfl[4];
int aiOvfl[4];
}; };
// Macros // Macros
@ -88,7 +95,7 @@ struct SPage {
#endif #endif
// APIs // APIs
int tdbPageInsertCell(SPage *pPage, int idx, u8 *pCell, int szCell); int tdbPageInsertCell(SPage *pPage, int idx, SCell *pCell, int szCell);
int tdbPageDropCell(SPage *pPage, int idx); int tdbPageDropCell(SPage *pPage, int idx);
#ifdef __cplusplus #ifdef __cplusplus