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fix(query): check list size before iterate it.

This commit is contained in:
Haojun Liao 2022-11-26 00:12:27 +08:00
parent f9d1726c89
commit c6795b68d2
1 changed files with 5 additions and 5 deletions
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10
source/dnode/vnode/src/meta/metaCache.c
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@ -519,20 +519,20 @@ int32_t metaUidFilterCachePut(SMeta* pMeta, uint64_t suid, const void* pKey, int
// remove the lru cache that are expired due to the tags value update, or creating, or dropping, of child tables // remove the lru cache that are expired due to the tags value update, or creating, or dropping, of child tables
int32_t metaUidCacheClear(SMeta* pMeta, uint64_t suid) { int32_t metaUidCacheClear(SMeta* pMeta, uint64_t suid) {
STagFilterResEntry* pEntry = taosHashGet(pMeta->pCache->sTagFilterResCache.pTableEntry, &suid, sizeof(uint64_t)); STagFilterResEntry* pEntry = taosHashGet(pMeta->pCache->sTagFilterResCache.pTableEntry, &suid, sizeof(uint64_t));
if (pEntry == NULL) { if (pEntry == NULL || listNEles(&pEntry->list) == 0) {
return TSDB_CODE_SUCCESS; return TSDB_CODE_SUCCESS;
} }
int32_t keyLen = sizeof(uint64_t) + 128; int32_t keyLen = sizeof(uint64_t) * 3;
char* p = taosMemoryMalloc(keyLen); uint64_t p[3] = {0};
*(uint64_t*)p = pEntry->suid; p[0] = suid;
SListIter iter = {0}; SListIter iter = {0};
tdListInitIter(&pEntry->list, &iter, TD_LIST_FORWARD); tdListInitIter(&pEntry->list, &iter, TD_LIST_FORWARD);
SListNode* pNode = NULL; SListNode* pNode = NULL;
while ((pNode = tdListNext(&iter)) != NULL) { while ((pNode = tdListNext(&iter)) != NULL) {
memcpy(p + sizeof(suid), pNode->data, 128); memcpy(&p[1], pNode->data, 16);
taosLRUCacheErase(pMeta->pCache->sTagFilterResCache.pUidResCache, p, keyLen); taosLRUCacheErase(pMeta->pCache->sTagFilterResCache.pUidResCache, p, keyLen);
} }