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add btree debug helper function

This commit is contained in:
Hongze Cheng 2022-03-25 10:28:23 +00:00
parent 4ea8c88810
commit 72f1719a93
1 changed files with 36 additions and 1 deletions
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37
source/libs/tdb/src/db/tdbBtree.c
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@ -1289,4 +1289,39 @@ static int tdbBtcMoveUpward(SBTC *pBtc) {
pBtc->idx = pBtc->idxStack[pBtc->iPage];
return 0;
}
}
#ifndef NODEBUG
typedef struct {
SPgno pgno;
u8 root;
u8 leaf;
SPgno rChild;
int nCells;
int nOvfl;
} SBtPageInfo;
SBtPageInfo btPageInfos[20];
void tdbBtPageInfo(SPage *pPage, int idx) {
u8 flags;
SBtPageInfo *pBtPageInfo;
pBtPageInfo = btPageInfos + idx;
pBtPageInfo->pgno = TDB_PAGE_PGNO(pPage);
flags = TDB_BTREE_PAGE_GET_FLAGS(pPage);
pBtPageInfo->root = TDB_BTREE_PAGE_IS_ROOT(flags);
pBtPageInfo->leaf = TDB_BTREE_PAGE_IS_LEAF(flags);
pBtPageInfo->rChild = 0;
if (!pBtPageInfo->leaf) {
pBtPageInfo->rChild = *(SPgno *)(pPage->pData + 1);
}
pBtPageInfo->nCells = TDB_PAGE_TOTAL_CELLS(pPage) - pPage->nOverflow;
pBtPageInfo->nOvfl = pPage->nOverflow;
}
#endif