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Merge pull request #4370 from taosdata/bugfix/td-2198 

[TD-2198]<fix>: cq can be created more than once
This commit is contained in:
haojun Liao 2020-11-30 13:21:01 +08:00 committed by GitHub
parent 1ccb87854d 6b3c07142a
commit c9a725dff4
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 7 deletions
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22
src/cq/src/cqMain.c
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@ -241,8 +241,12 @@ static void doCreateStream(void *param, TAOS_RES *result, int32_t code) {
SCqObj* pObj = (SCqObj*)param;
SCqContext* pContext = pObj->pContext;
SSqlObj* pSql = (SSqlObj*)result;
pContext->dbConn = pSql->pTscObj;
if (atomic_val_compare_exchange_ptr(&(pContext->dbConn), NULL, pSql->pTscObj) != NULL) {
taos_close(pSql->pTscObj);
}
pthread_mutex_lock(&pContext->mutex);
cqCreateStream(pContext, pObj);
pthread_mutex_unlock(&pContext->mutex);
}
static void cqProcessCreateTimer(void *param, void *tmrId) {
@ -253,7 +257,9 @@ static void cqProcessCreateTimer(void *param, void *tmrId) {
cDebug("vgId:%d, try connect to TDengine", pContext->vgId);
taos_connect_a(NULL, pContext->user, pContext->pass, pContext->db, 0, doCreateStream, param, NULL);
} else {
pthread_mutex_lock(&pContext->mutex);
cqCreateStream(pContext, pObj);
pthread_mutex_unlock(&pContext->mutex);
}
}
@ -267,12 +273,14 @@ static void cqCreateStream(SCqContext *pContext, SCqObj *pObj) {
}
pObj->tmrId = 0;
pObj->pStream = taos_open_stream(pContext->dbConn, pObj->sqlStr, cqProcessStreamRes, 0, pObj, NULL);
if (pObj->pStream) {
pContext->num++;
cInfo("vgId:%d, id:%d CQ:%s is openned", pContext->vgId, pObj->tid, pObj->sqlStr);
} else {
cError("vgId:%d, id:%d CQ:%s, failed to open", pContext->vgId, pObj->tid, pObj->sqlStr);
if (pObj->pStream == NULL) {
pObj->pStream = taos_open_stream(pContext->dbConn, pObj->sqlStr, cqProcessStreamRes, 0, pObj, NULL);
if (pObj->pStream) {
pContext->num++;
cInfo("vgId:%d, id:%d CQ:%s is openned", pContext->vgId, pObj->tid, pObj->sqlStr);
} else {
cError("vgId:%d, id:%d CQ:%s, failed to open", pContext->vgId, pObj->tid, pObj->sqlStr);
}
}
}