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fix(client): set the initial value for num_of_rows.

This commit is contained in:
Haojun Liao 2023-03-16 22:36:02 +08:00
parent 970155a845
commit 1b219f7a66
3 changed files with 7 additions and 4 deletions
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4
source/client/src/clientJniConnector.c
View File

@ -581,8 +581,8 @@ JNIEXPORT jint JNICALL Java_com_taosdata_jdbc_TSDBJNIConnector_fetchBlockImp(JNI
return JNI_RESULT_SET_NULL; return JNI_RESULT_SET_NULL;
} }
void *data; void *data = NULL;
int32_t numOfRows; int32_t numOfRows = 0;
int error_code = taos_fetch_raw_block(tres, &numOfRows, &data); int error_code = taos_fetch_raw_block(tres, &numOfRows, &data);
if (numOfRows == 0) { if (numOfRows == 0) {
if (error_code == JNI_SUCCESS) { if (error_code == JNI_SUCCESS) {

3
source/client/src/clientMain.c
View File

@ -611,6 +611,9 @@ int taos_fetch_block_s(TAOS_RES *res, int *numOfRows, TAOS_ROW *rows) {
} }
int taos_fetch_raw_block(TAOS_RES *res, int *numOfRows, void **pData) { int taos_fetch_raw_block(TAOS_RES *res, int *numOfRows, void **pData) {
*numOfRows = 0;
*pData = NULL;
if (res == NULL || TD_RES_TMQ_META(res)) { if (res == NULL || TD_RES_TMQ_META(res)) {
return 0; return 0;
} }

4
source/client/src/clientTmqConnector.c
View File

@ -361,8 +361,8 @@ JNIEXPORT jint JNICALL Java_com_taosdata_jdbc_tmq_TMQConnector_fetchRawBlockImp(
TAOS_RES *tres = (TAOS_RES *)res; TAOS_RES *tres = (TAOS_RES *)res;
void *data; void *data = NULL;
int32_t numOfRows; int32_t numOfRows = 0;
int error_code = taos_fetch_raw_block(tres, &numOfRows, &data); int error_code = taos_fetch_raw_block(tres, &numOfRows, &data);
if (numOfRows == 0) { if (numOfRows == 0) {
if (error_code == JNI_SUCCESS) { if (error_code == JNI_SUCCESS) {