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td-1089: fix memory leak and invalid read

This commit is contained in:
Bomin Zhang 2020-08-08 10:29:50 +08:00
parent 1d7626df1c
commit 941705c5d6
3 changed files with 27 additions and 2 deletions
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1
src/client/inc/tscUtil.h
View File

@ -230,6 +230,7 @@ int32_t tscAddSubqueryInfo(SSqlCmd *pCmd);
void tscInitQueryInfo(SQueryInfo* pQueryInfo);
void tscClearSubqueryInfo(SSqlCmd* pCmd);
void tscFreeVgroupTableInfo(SArray* pVgroupTables);
int tscGetSTableVgroupInfo(SSqlObj* pSql, int32_t clauseIndex);
int tscGetTableMeta(SSqlObj* pSql, STableMetaInfo* pTableMetaInfo);

16
src/client/src/tscSub.c
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@ -230,6 +230,19 @@ static SArray* getTableList( SSqlObj* pSql ) {
return result;
}
static int32_t compareTidTag(const void* p1, const void* p2) {
const STidTags* t1 = (const STidTags*)p1;
const STidTags* t2 = (const STidTags*)p2;
if (t1->vgId != t2->vgId) {
return (t1->vgId > t2->vgId) ? 1 : -1;
}
if (t1->tid != t2->tid) {
return (t1->tid > t2->tid) ? 1 : -1;
}
return 0;
}
static int tscUpdateSubscription(STscObj* pObj, SSub* pSub) {
SSqlObj* pSql = pSub->pSql;
@ -270,7 +283,8 @@ static int tscUpdateSubscription(STscObj* pObj, SSub* pSub) {
pSub->progress = progress;
if (UTIL_TABLE_IS_SUPER_TABLE(pTableMetaInfo)) {
taosArraySort( tables, tscCompareTidTags );
taosArraySort( tables, compareTidTag );
tscFreeVgroupTableInfo(pTableMetaInfo->pVgroupTables);
tscBuildVgroupTableInfo(pSql, pTableMetaInfo, tables);
}
taosArrayDestroy(tables);

12
src/client/src/tscUtil.c
View File

@ -1556,12 +1556,22 @@ void tscClearSubqueryInfo(SSqlCmd* pCmd) {
}
}
void tscFreeVgroupTableInfo(SArray* pVgroupTables) {
if (pVgroupTables != NULL) {
for (size_t i = 0; i < taosArrayGetSize(pVgroupTables); i++) {
SVgroupTableInfo* pInfo = taosArrayGet(pVgroupTables, i);
taosArrayDestroy(pInfo->itemList);
}
taosArrayDestroy(pVgroupTables);
}
}
void clearAllTableMetaInfo(SQueryInfo* pQueryInfo, const char* address, bool removeFromCache) {
tscDebug("%p deref the table meta in cache, numOfTables:%d", address, pQueryInfo->numOfTables);
for(int32_t i = 0; i < pQueryInfo->numOfTables; ++i) {
STableMetaInfo* pTableMetaInfo = tscGetMetaInfo(pQueryInfo, i);
tscFreeVgroupTableInfo(pTableMetaInfo->pVgroupTables);
tscClearTableMetaInfo(pTableMetaInfo, removeFromCache);
free(pTableMetaInfo);
}