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fix(tdb/cd): free cell decoder's mem w.r.t. btree prev

This commit is contained in:
Minglei Jin 2024-12-26 18:27:43 +08:00
parent bb2185b8de
commit d5f1aab4fe
1 changed files with 19 additions and 6 deletions
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25
source/libs/tdb/src/db/tdbBtree.c
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@ -2023,16 +2023,29 @@ int tdbBtreePrev(SBTC *pBtc, void **ppKey, int *kLen, void **ppVal, int *vLen) {
memcpy(pKey, cd.pKey, (size_t)cd.kLen);
if (ppVal) {
// TODO: vLen may be zero
pVal = tdbRealloc(*ppVal, cd.vLen);
if (pVal == NULL) {
tdbFree(pKey);
return terrno;
if (cd.vLen > 0) {
pVal = tdbRealloc(*ppVal, cd.vLen);
if (pVal == NULL) {
tdbFree(pKey);
return terrno;
}
memcpy(pVal, cd.pVal, (size_t)cd.vLen);
if (TDB_CELLDECODER_FREE_VAL(&cd)) {
tdbTrace("tdb/btree-next decoder: %p pVal free: %p", &cd, cd.pVal);
tdbFree(cd.pVal);
}
} else {
pVal = NULL;
}
*ppVal = pVal;
*vLen = cd.vLen;
memcpy(pVal, cd.pVal, (size_t)cd.vLen);
} else {
if (TDB_CELLDECODER_FREE_VAL(&cd)) {
tdbTrace("tdb/btree-next2 decoder: %p pVal free: %p", &cd, cd.pVal);
tdbFree(cd.pVal);
}
}
ret = tdbBtcMoveToPrev(pBtc);