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[td-1716] enable repeatably close connection to avoid close the connection twice in c# driver #3737

This commit is contained in:
Haojun Liao 2020-10-14 13:24:41 +08:00
parent 4b3254a380
commit 7f70eff949
1 changed files with 13 additions and 1 deletions
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14
src/client/src/tscSql.c
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@ -27,6 +27,7 @@
#include "ttokendef.h"
#include "tutil.h"
#include "tscProfile.h"
#include "ttimer.h"
static bool validImpl(const char* str, size_t maxsize) {
if (str == NULL) {
@ -256,10 +257,21 @@ TAOS *taos_connect_a(char *ip, char *user, char *pass, char *db, uint16_t port,
void taos_close(TAOS *taos) {
STscObj *pObj = (STscObj *)taos;
if (pObj == NULL || pObj->signature != pObj) {
if (pObj == NULL) {
tscDebug("(null) try to free tscObj and close dnodeConn");
return;
}
tscDebug("%p try to free tscObj and close dnodeConn:%p", pObj, pObj->pDnodeConn);
if (pObj->signature != pObj) {
tscDebug("%p already closed or invalid tscObj", pObj);
return;
}
// make sure that the close connection can only be executed once.
pObj->signature = NULL;
taosTmrStopA(&(pObj->pTimer));
SSqlObj* pHb = pObj->pHb;
if (pHb != NULL && atomic_val_compare_exchange_ptr(&pObj->pHb, pHb, 0) == pHb) {
if (pHb->pRpcCtx != NULL) { // wait for rsp from dnode