[td-225] refactor codes.

src/client/src/tscFunctionImpl.c

@@ -3945,7 +3945,7 @@ static void ts_comp_finalize(SQLFunctionCtx *pCtx) {
   tsBufFlush(pTSbuf);
   strcpy(pCtx->aOutputBuf, pTSbuf->path);
   
-  tsBufDestory(pTSbuf);
+  tsBufDestroy(pTSbuf);
   doFinalizer(pCtx);
 }
 

src/client/src/tscSQLParser.c

@@ -175,7 +175,6 @@ static int32_t handlePassword(SSqlCmd* pCmd, SSQLToken* pPwd) {
   return TSDB_CODE_SUCCESS;
 }
 
-// todo handle memory leak in error handle function
 int32_t tscToSQLCmd(SSqlObj* pSql, struct SSqlInfo* pInfo) {
   if (pInfo == NULL || pSql == NULL || pSql->signature != pSql) {
     return TSDB_CODE_TSC_APP_ERROR;

src/client/src/tscSubquery.c

@@ -152,8 +152,8 @@ static int64_t doTSBlockIntersect(SSqlObj* pSql, SJoinSupporter* pSupporter1, SJ
   tsBufFlush(output1);
   tsBufFlush(output2);
 
-  tsBufDestory(pSupporter1->pTSBuf);
-  tsBufDestory(pSupporter2->pTSBuf);
+  tsBufDestroy(pSupporter1->pTSBuf);
+  tsBufDestroy(pSupporter2->pTSBuf);
 
   tscDebug("%p input1:%" PRId64 ", input2:%" PRId64 ", final:%" PRId64 " for secondary query after ts blocks "
            "intersecting, skey:%" PRId64 ", ekey:%" PRId64, pSql, numOfInput1, numOfInput2, output1->numOfTotal,
@@ -762,7 +762,7 @@ static void tsCompRetrieveCallback(void* param, TAOS_RES* tres, int32_t numOfRow
       STableMetaInfo* pTableMetaInfo = tscGetMetaInfo(pQueryInfo, 0);
 
       tsBufMerge(pSupporter->pTSBuf, pBuf, pTableMetaInfo->vgroupIndex);
-      tsBufDestory(pBuf);
+      tsBufDestroy(pBuf);
     }
 
     // continue to retrieve ts-comp data from vnode

src/client/src/tscUtil.c

@@ -1544,7 +1544,7 @@ static void freeQueryInfoImpl(SQueryInfo* pQueryInfo) {
     pQueryInfo->groupbyExpr.columnInfo = NULL;
   }
   
-  pQueryInfo->tsBuf = tsBufDestory(pQueryInfo->tsBuf);
+  pQueryInfo->tsBuf = tsBufDestroy(pQueryInfo->tsBuf);
 
   tfree(pQueryInfo->fillVal);
 }

src/query/src/qExecutor.c

@@ -120,6 +120,7 @@ static UNUSED_FUNC void* u_calloc(size_t num, size_t __size) {
 #define GET_TABLEGROUP(q, _index)   ((SArray*) taosArrayGetP((q)->tableqinfoGroupInfo.pGroupList, (_index)))
 
 static void setQueryStatus(SQuery *pQuery, int8_t status);
+static void finalizeQueryResult(SQueryRuntimeEnv *pRuntimeEnv);
 
 #define QUERY_IS_INTERVAL_QUERY(_q) ((_q)->intervalTime > 0)
 
@@ -838,6 +839,7 @@ static char *getDataBlock(SQueryRuntimeEnv *pRuntimeEnv, SArithmeticSupport *sas
     sas->data    = calloc(pQuery->numOfCols, POINTER_BYTES);
 
     if (sas->data == NULL) {
+      finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
       longjmp(pRuntimeEnv->env, TSDB_CODE_QRY_OUT_OF_MEMORY);
     }
 
@@ -900,6 +902,7 @@ static void blockwiseApplyFunctions(SQueryRuntimeEnv *pRuntimeEnv, SDataStatis *
 
   SArithmeticSupport *sasArray = calloc((size_t)pQuery->numOfOutput, sizeof(SArithmeticSupport));
   if (sasArray == NULL) {
+    finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
     longjmp(pRuntimeEnv->env, TSDB_CODE_QRY_OUT_OF_MEMORY);
   }
 
@@ -1146,6 +1149,7 @@ static void rowwiseApplyFunctions(SQueryRuntimeEnv *pRuntimeEnv, SDataStatis *pS
 
   SArithmeticSupport *sasArray = calloc((size_t)pQuery->numOfOutput, sizeof(SArithmeticSupport));
   if (sasArray == NULL) {
+    finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
     longjmp(pRuntimeEnv->env, TSDB_CODE_QRY_OUT_OF_MEMORY);
   }
 
@@ -1597,7 +1601,7 @@ static void teardownQueryRuntimeEnv(SQueryRuntimeEnv *pRuntimeEnv) {
   tsdbCleanupQueryHandle(pRuntimeEnv->pQueryHandle);
   tsdbCleanupQueryHandle(pRuntimeEnv->pSecQueryHandle);
 
-  pRuntimeEnv->pTSBuf = tsBufDestory(pRuntimeEnv->pTSBuf);
+  pRuntimeEnv->pTSBuf = tsBufDestroy(pRuntimeEnv->pTSBuf);
 }
 
 #define IS_QUERY_KILLED(_q) ((_q)->code == TSDB_CODE_TSC_QUERY_CANCELLED)
@@ -2225,8 +2229,10 @@ static int64_t doScanAllDataBlocks(SQueryRuntimeEnv *pRuntimeEnv) {
   SDataBlockInfo blockInfo = SDATA_BLOCK_INITIALIZER;
   while (tsdbNextDataBlock(pQueryHandle)) {
     summary->totalBlocks += 1;
+
     if (IS_QUERY_KILLED(GET_QINFO_ADDR(pRuntimeEnv))) {
-      return 0;
+      finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
+      longjmp(pRuntimeEnv->env, TSDB_CODE_TSC_QUERY_CANCELLED);
     }
 
     tsdbRetrieveDataBlockInfo(pQueryHandle, &blockInfo);
@@ -3281,7 +3287,8 @@ void scanOneTableDataBlocks(SQueryRuntimeEnv *pRuntimeEnv, TSKEY start) {
 
     // check if query is killed or not
     if (IS_QUERY_KILLED(pQInfo)) {
-      return;
+      finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
+      longjmp(pRuntimeEnv->env, TSDB_CODE_TSC_QUERY_CANCELLED);
     }
   }
 
@@ -3926,7 +3933,8 @@ void skipBlocks(SQueryRuntimeEnv *pRuntimeEnv) {
   SDataBlockInfo blockInfo = SDATA_BLOCK_INITIALIZER;
   while (tsdbNextDataBlock(pQueryHandle)) {
     if (IS_QUERY_KILLED(GET_QINFO_ADDR(pRuntimeEnv))) {
-      return;
+      finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
+      longjmp(pRuntimeEnv->env, TSDB_CODE_TSC_QUERY_CANCELLED);
     }
 
     tsdbRetrieveDataBlockInfo(pQueryHandle, &blockInfo);
@@ -4133,7 +4141,10 @@ int32_t doInitQInfo(SQInfo *pQInfo, STSBuf *pTsBuf, void *tsdb, int32_t vgId, bo
   SQueryRuntimeEnv *pRuntimeEnv = &pQInfo->runtimeEnv;
 
   SQuery *pQuery = pQInfo->runtimeEnv.pQuery;
+
   pQuery->precision = tsdbGetCfg(tsdb)->precision;
+  pRuntimeEnv->topBotQuery = isTopBottomQuery(pQuery);
+  pRuntimeEnv->hasTagResults = hasTagValOutput(pQuery);
 
   setScanLimitationByResultBuffer(pQuery);
   changeExecuteScanOrder(pQInfo, false);
@@ -4211,10 +4222,6 @@ int32_t doInitQInfo(SQInfo *pQInfo, STSBuf *pTsBuf, void *tsdb, int32_t vgId, bo
                                               pQuery->fillType, pColInfo);
   }
 
-  // todo refactor
-  pRuntimeEnv->topBotQuery = isTopBottomQuery(pQuery);
-  pRuntimeEnv->hasTagResults = hasTagValOutput(pQuery);
-
   setQueryStatus(pQuery, QUERY_NOT_COMPLETED);
   return TSDB_CODE_SUCCESS;
 }
@@ -4243,7 +4250,8 @@ static int64_t scanMultiTableDataBlocks(SQInfo *pQInfo) {
   while (tsdbNextDataBlock(pQueryHandle)) {
     summary->totalBlocks += 1;
     if (IS_QUERY_KILLED(pQInfo)) {
-      break;
+      finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
+      longjmp(pRuntimeEnv->env, TSDB_CODE_TSC_QUERY_CANCELLED);
     }
 
     tsdbRetrieveDataBlockInfo(pQueryHandle, &blockInfo);
@@ -4527,7 +4535,8 @@ static void sequentialTableProcess(SQInfo *pQInfo) {
 
     while (pQInfo->tableIndex < pQInfo->tableqinfoGroupInfo.numOfTables) {
       if (IS_QUERY_KILLED(pQInfo)) {
-        return;
+        finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
+        longjmp(pRuntimeEnv->env, TSDB_CODE_TSC_QUERY_CANCELLED);
       }
 
       pQuery->current = taosArrayGetP(group, pQInfo->tableIndex);
@@ -4723,7 +4732,8 @@ static void multiTableQueryProcess(SQInfo *pQInfo) {
   // query error occurred or query is killed, abort current execution
   if (pQInfo->code != TSDB_CODE_SUCCESS || IS_QUERY_KILLED(pQInfo)) {
     qDebug("QInfo:%p query killed or error occurred, code:%s, abort", pQInfo, tstrerror(pQInfo->code));
-    return;
+    finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
+    longjmp(pRuntimeEnv->env, TSDB_CODE_TSC_QUERY_CANCELLED);
   }
 
   // close all time window results
@@ -4745,7 +4755,8 @@ static void multiTableQueryProcess(SQInfo *pQInfo) {
 
   if (pQInfo->code != TSDB_CODE_SUCCESS || IS_QUERY_KILLED(pQInfo)) {
     qDebug("QInfo:%p query killed or error occurred, code:%s, abort", pQInfo, tstrerror(pQInfo->code));
-    return;
+    finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
+    longjmp(pRuntimeEnv->env, TSDB_CODE_TSC_QUERY_CANCELLED);
   }
 
   if (QUERY_IS_INTERVAL_QUERY(pQuery) || isSumAvgRateQuery(pQuery)) {
@@ -4784,7 +4795,8 @@ static void tableFixedOutputProcess(SQInfo *pQInfo, STableQueryInfo* pTableInfo)
   finalizeQueryResult(pRuntimeEnv);
 
   if (IS_QUERY_KILLED(pQInfo)) {
-    return;
+    finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
+    longjmp(pRuntimeEnv->env, TSDB_CODE_TSC_QUERY_CANCELLED);
   }
 
   // since the numOfRows must be identical for all sql functions that are allowed to be executed simutaneously.
@@ -4816,10 +4828,6 @@ static void tableMultiOutputProcess(SQInfo *pQInfo, STableQueryInfo* pTableInfo)
     scanOneTableDataBlocks(pRuntimeEnv, pQuery->current->lastKey);
     finalizeQueryResult(pRuntimeEnv);
 
-    if (IS_QUERY_KILLED(pQInfo)) {
-      return;
-    }
-
     pQuery->rec.rows = getNumOfResult(pRuntimeEnv);
     if (pQuery->limit.offset > 0 && pQuery->numOfFilterCols > 0 && pQuery->rec.rows > 0) {
       skipResults(pRuntimeEnv);
@@ -4864,10 +4872,6 @@ static void tableIntervalProcessImpl(SQueryRuntimeEnv *pRuntimeEnv, TSKEY start)
   while (1) {
     scanOneTableDataBlocks(pRuntimeEnv, start);
 
-    if (IS_QUERY_KILLED(GET_QINFO_ADDR(pRuntimeEnv))) {
-      return;
-    }
-
     assert(!Q_STATUS_EQUAL(pQuery->status, QUERY_NOT_COMPLETED));
     finalizeQueryResult(pRuntimeEnv);
 
@@ -5788,7 +5792,7 @@ static bool isValidQInfo(void *param) {
   return (sig == (uint64_t)pQInfo);
 }
 
-static int32_t initQInfo(SQueryTableMsg *pQueryMsg, void *tsdb, int32_t vgId, SQInfo *pQInfo, bool isSTable, void* param, _qinfo_free_fn_t fn) {
+static int32_t initQInfo(SQueryTableMsg *pQueryMsg, void *tsdb, int32_t vgId, SQInfo *pQInfo, bool isSTable, void* param) {
   int32_t code = TSDB_CODE_SUCCESS;
   SQuery *pQuery = pQInfo->runtimeEnv.pQuery;
 
@@ -5813,7 +5817,6 @@ static int32_t initQInfo(SQueryTableMsg *pQueryMsg, void *tsdb, int32_t vgId, SQ
   }
 
   pQInfo->param = param;
-  pQInfo->freeFn = fn;
 
   if (pQInfo->tableqinfoGroupInfo.numOfTables == 0) {
     qDebug("QInfo:%p no table qualified for tag filter, abort query", pQInfo);
@@ -5995,8 +5998,7 @@ typedef struct SQueryMgmt {
   pthread_mutex_t lock;
 } SQueryMgmt;
 
-int32_t qCreateQueryInfo(void* tsdb, int32_t vgId, SQueryTableMsg* pQueryMsg, void* param, _qinfo_free_fn_t fn,
-    qinfo_t* pQInfo) {
+int32_t qCreateQueryInfo(void* tsdb, int32_t vgId, SQueryTableMsg* pQueryMsg, void* param, qinfo_t* pQInfo) {
   assert(pQueryMsg != NULL && tsdb != NULL);
 
   int32_t code = TSDB_CODE_SUCCESS;
@@ -6086,7 +6088,7 @@ int32_t qCreateQueryInfo(void* tsdb, int32_t vgId, SQueryTableMsg* pQueryMsg, vo
     goto _over;
   }
 
-  code = initQInfo(pQueryMsg, tsdb, vgId, *pQInfo, isSTableQuery, param, fn);
+  code = initQInfo(pQueryMsg, tsdb, vgId, *pQInfo, isSTableQuery, param);
 
 _over:
   free(tagCond);
@@ -6105,43 +6107,25 @@ _over:
   if (code != TSDB_CODE_SUCCESS) {
     *pQInfo = NULL;
   } else {
-    SQInfo* pq = (SQInfo*) (*pQInfo);
+//    SQInfo* pq = (SQInfo*) (*pQInfo);
 
-    T_REF_INC(pq);
-    T_REF_INC(pq);
+//    T_REF_INC(pq);
+//    T_REF_INC(pq);
   }
 
   // if failed to add ref for all meters in this query, abort current query
   return code;
 }
 
-static void doDestoryQueryInfo(SQInfo* pQInfo) {
-  assert(pQInfo != NULL);
-  qDebug("QInfo:%p query completed", pQInfo);
-  queryCostStatis(pQInfo);   // print the query cost summary
-  freeQInfo(pQInfo);
-}
-
 void qDestroyQueryInfo(qinfo_t qHandle) {
   SQInfo* pQInfo = (SQInfo*) qHandle;
   if (!isValidQInfo(pQInfo)) {
     return;
   }
 
-  int32_t ref = T_REF_DEC(pQInfo);
-  qDebug("QInfo:%p dec refCount, value:%d", pQInfo, ref);
-
-  if (ref == 0) {
-    _qinfo_free_fn_t freeFp = pQInfo->freeFn;
-    void* param = pQInfo->param;
-
-    doDestoryQueryInfo(pQInfo);
-    if (freeFp != NULL) {
-      assert(param != NULL);
-      freeFp(param);
-    }
-
-  }
+  qDebug("QInfo:%p query completed", pQInfo);
+  queryCostStatis(pQInfo);   // print the query cost summary
+  freeQInfo(pQInfo);
 }
 
 void qTableQuery(qinfo_t qinfo) {
@@ -6154,29 +6138,22 @@ void qTableQuery(qinfo_t qinfo) {
 
   if (IS_QUERY_KILLED(pQInfo)) {
     qDebug("QInfo:%p it is already killed, abort", pQInfo);
-
     sem_post(&pQInfo->dataReady);
-    qDestroyQueryInfo(pQInfo);
     return;
   }
 
   if (pQInfo->tableqinfoGroupInfo.numOfTables == 0) {
     qDebug("QInfo:%p no table exists for query, abort", pQInfo);
-
     sem_post(&pQInfo->dataReady);
-    qDestroyQueryInfo(pQInfo);
     return;
   }
 
-  int32_t ret = setjmp(pQInfo->runtimeEnv.env);
-
   // error occurs, record the error code and return to client
+  int32_t ret = setjmp(pQInfo->runtimeEnv.env);
   if (ret != TSDB_CODE_SUCCESS) {
     pQInfo->code = ret;
-    qDebug("QInfo:%p query abort due to error occurs, code:%s", pQInfo, tstrerror(pQInfo->code));
+    qDebug("QInfo:%p query abort due to error/cancel occurs, code:%s", pQInfo, tstrerror(pQInfo->code));
     sem_post(&pQInfo->dataReady);
-    qDestroyQueryInfo(pQInfo);
-
     return;
   }
 
@@ -6203,7 +6180,6 @@ void qTableQuery(qinfo_t qinfo) {
   }
 
   sem_post(&pQInfo->dataReady);
-  qDestroyQueryInfo(pQInfo);
 }
 
 int32_t qRetrieveQueryResultInfo(qinfo_t qinfo) {
@@ -6247,7 +6223,7 @@ bool qHasMoreResultsToRetrieve(qinfo_t qinfo) {
   }
 
   if (ret) {
-    T_REF_INC(pQInfo);
+//    T_REF_INC(pQInfo);
     qDebug("QInfo:%p has more results waits for client retrieve", pQInfo);
   }
 
@@ -6304,7 +6280,6 @@ int32_t qKillQuery(qinfo_t qinfo) {
   }
 
   setQueryKilled(pQInfo);
-  qDestroyQueryInfo(pQInfo);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -6449,6 +6424,7 @@ void freeqinfoFn(void *qhandle) {
   }
 
   qKillQuery(*handle);
+  qDestroyQueryInfo(*handle);
 }
 
 void* qOpenQueryMgmt(int32_t vgId) {
@@ -6467,7 +6443,11 @@ void* qOpenQueryMgmt(int32_t vgId) {
   return pQueryHandle;
 }
 
-void qSetQueryMgmtClosed(void* pQMgmt) {
+static void queryMgmtKillQueryFn(void* handle) {
+  qKillQuery(handle);
+}
+
+void qQueryMgmtNotifyClosed(void* pQMgmt) {
   if (pQMgmt == NULL) {
     return;
   }
@@ -6479,7 +6459,7 @@ void qSetQueryMgmtClosed(void* pQMgmt) {
   pQueryMgmt->closed = true;
   pthread_mutex_unlock(&pQueryMgmt->lock);
 
-  taosCacheRefresh(pQueryMgmt->qinfoPool, freeqinfoFn);
+  taosCacheRefresh(pQueryMgmt->qinfoPool, queryMgmtKillQueryFn);
 }
 
 void qCleanupQueryMgmt(void* pQMgmt) {

src/query/src/qtokenizer.c

@@ -509,9 +509,10 @@ uint32_t tSQLGetToken(char* z, uint32_t* tokenType) {
       for (i = 1; isdigit(z[i]); i++) {
       }
 
-      /* here is the 1a/2s/3m/9y */
-      if ((z[i] == 'a' || z[i] == 's' || z[i] == 'm' || z[i] == 'h' || z[i] == 'd' || z[i] == 'n' || z[i] == 'y' ||
-          z[i] == 'w' || z[i] == 'A' || z[i] == 'S' || z[i] == 'M' || z[i] == 'H' || z[i] == 'D' || z[i] == 'N' ||
+      /* here is the 1u/1a/2s/3m/9y */
+      if ((z[i] == 'u' || z[i] == 'a' || z[i] == 's' || z[i] == 'm' || z[i] == 'h' || z[i] == 'd' || z[i] == 'n' ||
+           z[i] == 'y' || z[i] == 'w' ||
+           z[i] == 'U' || z[i] == 'A' || z[i] == 'S' || z[i] == 'M' || z[i] == 'H' || z[i] == 'D' || z[i] == 'N' ||
            z[i] == 'Y' || z[i] == 'W') &&
           (isIdChar[(uint8_t)z[i + 1]] == 0)) {
         *tokenType = TK_VARIABLE;

src/query/src/qtsbuf.c

@@ -79,7 +79,7 @@ STSBuf* tsBufCreateFromFile(const char* path, bool autoDelete) {
     pTSBuf->numOfAlloc = header.numOfVnode;
     STSVnodeBlockInfoEx* tmp = realloc(pTSBuf->pData, sizeof(STSVnodeBlockInfoEx) * pTSBuf->numOfAlloc);
     if (tmp == NULL) {
-      tsBufDestory(pTSBuf);
+      tsBufDestroy(pTSBuf);
       return NULL;
     }
     
@@ -92,7 +92,7 @@ STSBuf* tsBufCreateFromFile(const char* path, bool autoDelete) {
   pTSBuf->tsOrder = header.tsOrder;
   if (pTSBuf->tsOrder != TSDB_ORDER_ASC && pTSBuf->tsOrder != TSDB_ORDER_DESC) {
 //    tscError("invalid order info in buf:%d", pTSBuf->tsOrder);
-    tsBufDestory(pTSBuf);
+    tsBufDestroy(pTSBuf);
     return NULL;
   }
   
@@ -100,7 +100,7 @@ STSBuf* tsBufCreateFromFile(const char* path, bool autoDelete) {
   
   STSVnodeBlockInfo* buf = (STSVnodeBlockInfo*)calloc(1, infoSize);
   if (buf == NULL) {
-    tsBufDestory(pTSBuf);
+    tsBufDestroy(pTSBuf);
     return NULL; 
   } 
   
@@ -120,7 +120,7 @@ STSBuf* tsBufCreateFromFile(const char* path, bool autoDelete) {
   
   struct stat fileStat;
   if (fstat(fileno(pTSBuf->f), &fileStat) != 0) {
-    tsBufDestory(pTSBuf);
+    tsBufDestroy(pTSBuf);
     return NULL;
   }
   
@@ -137,7 +137,7 @@ STSBuf* tsBufCreateFromFile(const char* path, bool autoDelete) {
   return pTSBuf;
 }
 
-void* tsBufDestory(STSBuf* pTSBuf) {
+void* tsBufDestroy(STSBuf* pTSBuf) {
   if (pTSBuf == NULL) {
     return NULL;
   }
@@ -920,13 +920,13 @@ static STSBuf* allocResForTSBuf(STSBuf* pTSBuf) {
   pTSBuf->numOfAlloc = INITIAL_VNODEINFO_SIZE;
   pTSBuf->pData = calloc(pTSBuf->numOfAlloc, sizeof(STSVnodeBlockInfoEx));
   if (pTSBuf->pData == NULL) {
-    tsBufDestory(pTSBuf);
+    tsBufDestroy(pTSBuf);
     return NULL;
   }
   
   pTSBuf->tsData.rawBuf = malloc(MEM_BUF_SIZE);
   if (pTSBuf->tsData.rawBuf == NULL) {
-    tsBufDestory(pTSBuf);
+    tsBufDestroy(pTSBuf);
     return NULL;
   }
   
@@ -936,13 +936,13 @@ static STSBuf* allocResForTSBuf(STSBuf* pTSBuf) {
   
   pTSBuf->assistBuf = malloc(MEM_BUF_SIZE);
   if (pTSBuf->assistBuf == NULL) {
-    tsBufDestory(pTSBuf);
+    tsBufDestroy(pTSBuf);
     return NULL;
   }
   
   pTSBuf->block.payload = malloc(MEM_BUF_SIZE);
   if (pTSBuf->block.payload == NULL) {
-    tsBufDestory(pTSBuf);
+    tsBufDestroy(pTSBuf);
     return NULL;
   }