[TD-3992]<fix>: taosdemo subscribe. (#6035)

Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

src/kit/taosdemo/taosdemo.c

@@ -1630,35 +1630,41 @@ static void printfQueryMeta() {
   printf("database name:           \033[33m%s\033[0m\n", g_queryInfo.dbName);
 
   printf("\n");
+
+  if ((SUBSCRIBE_TEST == g_args.test_mode) || (QUERY_TEST == g_args.test_mode)) {
     printf("specified table query info:                   \n");
-  printf("query interval: \033[33m%"PRIu64" ms\033[0m\n",
-      g_queryInfo.specifiedQueryInfo.queryInterval);
-  printf("top query times:\033[33m%"PRIu64"\033[0m\n", g_args.query_times);
-  printf("concurrent:     \033[33m%"PRIu64"\033[0m\n",
-      g_queryInfo.specifiedQueryInfo.concurrent);
     printf("sqlCount:       \033[33m%"PRIu64"\033[0m\n",
       g_queryInfo.specifiedQueryInfo.sqlCount);
+    if (g_queryInfo.specifiedQueryInfo.sqlCount > 0) {
       printf("specified tbl query times:\n");
       printf("                \033[33m%"PRIu64"\033[0m\n",
       g_queryInfo.specifiedQueryInfo.queryTimes);
-
-  if (SUBSCRIBE_TEST == g_args.test_mode) {
-    printf("mod:            \033[33m%d\033[0m\n",
-        g_queryInfo.specifiedQueryInfo.mode);
+      printf("query interval: \033[33m%"PRIu64" ms\033[0m\n",
+        g_queryInfo.specifiedQueryInfo.queryInterval);
+      printf("top query times:\033[33m%"PRIu64"\033[0m\n", g_args.query_times);
+      printf("concurrent:     \033[33m%"PRIu64"\033[0m\n",
+      g_queryInfo.specifiedQueryInfo.concurrent);
+      printf("mod:            \033[33m%s\033[0m\n",
+        (g_queryInfo.specifiedQueryInfo.mode)?"async":"sync");
       printf("interval:       \033[33m%"PRIu64"\033[0m\n",
         g_queryInfo.specifiedQueryInfo.subscribeInterval);
       printf("restart:        \033[33m%d\033[0m\n",
         g_queryInfo.specifiedQueryInfo.subscribeRestart);
       printf("keepProgress:   \033[33m%d\033[0m\n",
         g_queryInfo.specifiedQueryInfo.subscribeKeepProgress);
-  }
 
       for (uint64_t i = 0; i < g_queryInfo.specifiedQueryInfo.sqlCount; i++) {
         printf("  sql[%"PRIu64"]: \033[33m%s\033[0m\n",
             i, g_queryInfo.specifiedQueryInfo.sql[i]);
       }
       printf("\n");
+    }
+
     printf("super table query info:\n");
+    printf("sqlCount:       \033[33m%"PRIu64"\033[0m\n",
+      g_queryInfo.superQueryInfo.sqlCount);
+
+    if (g_queryInfo.superQueryInfo.sqlCount > 0) {
       printf("query interval: \033[33m%"PRIu64"\033[0m\n",
         g_queryInfo.superQueryInfo.queryInterval);
       printf("threadCnt:      \033[33m%d\033[0m\n",
@@ -1670,24 +1676,22 @@ static void printfQueryMeta() {
       printf("stb query times:\033[33m%"PRIu64"\033[0m\n",
         g_queryInfo.superQueryInfo.queryTimes);
 
-  if (SUBSCRIBE_TEST == g_args.test_mode) {
-    printf("mod:            \033[33m%d\033[0m\n",
-        g_queryInfo.superQueryInfo.mode);
+      printf("mod:            \033[33m%s\033[0m\n",
+        (g_queryInfo.superQueryInfo.mode)?"async":"sync");
       printf("interval:       \033[33m%"PRIu64"\033[0m\n",
         g_queryInfo.superQueryInfo.subscribeInterval);
       printf("restart:        \033[33m%d\033[0m\n",
         g_queryInfo.superQueryInfo.subscribeRestart);
       printf("keepProgress:   \033[33m%d\033[0m\n",
         g_queryInfo.superQueryInfo.subscribeKeepProgress);
-  }
 
-  printf("sqlCount:       \033[33m%"PRIu64"\033[0m\n",
-      g_queryInfo.superQueryInfo.sqlCount);
       for (int i = 0; i < g_queryInfo.superQueryInfo.sqlCount; i++) {
         printf("  sql[%d]: \033[33m%s\033[0m\n",
             i, g_queryInfo.superQueryInfo.sql[i]);
       }
       printf("\n");
+    }
+  }
 
   SHOW_PARSE_RESULT_END();
 }
@@ -2847,7 +2851,7 @@ static void* createTable(void *sarg)
 }
 
 static int startMultiThreadCreateChildTable(
-        char* cols, int threads, int64_t startFrom, int64_t ntables,
+        char* cols, int threads, uint64_t startFrom, uint64_t ntables,
         char* db_name, SSuperTable* superTblInfo) {
 
   pthread_t *pids = malloc(threads * sizeof(pthread_t));
@@ -2862,13 +2866,13 @@ static int startMultiThreadCreateChildTable(
     threads = 1;
   }
 
-  int64_t a = ntables / threads;
+  uint64_t a = ntables / threads;
   if (a < 1) {
     threads = ntables;
     a = 1;
   }
 
-  int64_t b = 0;
+  uint64_t b = 0;
   b = ntables % threads;
 
   for (int64_t i = 0; i < threads; i++) {
@@ -4212,7 +4216,7 @@ static bool getMetaFromQueryJsonFile(cJSON* root) {
     }
   }
 
-  // sub_table_query
+  // super_table_query
   cJSON *superQuery = cJSON_GetObjectItem(root, "super_table_query");
   if (!superQuery) {
     g_queryInfo.superQueryInfo.threadCnt = 1;
@@ -5679,13 +5683,13 @@ static void startMultiThreadInsertData(int threads, char* db_name,
 
   taos_close(taos);
 
-  int a = ntables / threads;
+  uint64_t a = ntables / threads;
   if (a < 1) {
     threads = ntables;
     a = 1;
   }
 
-  int b = 0;
+  uint64_t b = 0;
   if (threads != 0) {
     b = ntables % threads;
   }
@@ -6380,7 +6384,7 @@ static int queryTestProcess() {
       b = ntables % threads;
     }
 
-    int startFrom = 0;
+    uint64_t startFrom = 0;
     for (int i = 0; i < threads; i++) {
       threadInfo *t_info = infosOfSub + i;
       t_info->threadID = i;
@@ -6436,13 +6440,14 @@ static void subscribe_callback(TAOS_SUB* tsub, TAOS_RES *res, void* param, int c
   }
 
   getResult(res, (char*)param);
-  taos_free_result(res);
+  // tao_unscribe() will free result.
 }
 
-static TAOS_SUB* subscribeImpl(TAOS *taos, char *sql, char* topic, char* resultFileName) {
+static TAOS_SUB* subscribeImpl(
+        TAOS *taos, char *sql, char* topic, char* resultFileName) {
   TAOS_SUB* tsub = NULL;
 
-  if (g_queryInfo.specifiedQueryInfo.mode) {
+  if (ASYNC_QUERY_MODE == g_queryInfo.specifiedQueryInfo.mode) {
     tsub = taos_subscribe(taos,
             g_queryInfo.specifiedQueryInfo.subscribeRestart,
             topic, sql, subscribe_callback, (void*)resultFileName,
@@ -6466,6 +6471,9 @@ static void *superSubscribe(void *sarg) {
   char subSqlstr[1024];
   TAOS_SUB*    tsub[MAX_QUERY_SQL_COUNT] = {0};
 
+  if (g_queryInfo.superQueryInfo.sqlCount == 0)
+    return NULL;
+
   if (pThreadInfo->taos == NULL) {
     TAOS * taos = NULL;
     taos = taos_connect(g_queryInfo.host,
@@ -6524,7 +6532,7 @@ static void *superSubscribe(void *sarg) {
   TAOS_RES* res = NULL;
   while(1) {
     for (int i = 0; i < g_queryInfo.superQueryInfo.sqlCount; i++) {
-      if (1 == g_queryInfo.superQueryInfo.mode) {
+      if (ASYNC_QUERY_MODE == g_queryInfo.superQueryInfo.mode) {
         continue;
       }
 
@@ -6554,6 +6562,9 @@ static void *specifiedSubscribe(void *sarg) {
   threadInfo *pThreadInfo = (threadInfo *)sarg;
   TAOS_SUB*    tsub[MAX_QUERY_SQL_COUNT] = {0};
 
+  if (g_queryInfo.specifiedQueryInfo.sqlCount == 0)
+    return NULL;
+
   if (pThreadInfo->taos == NULL) {
     TAOS * taos = NULL;
     taos = taos_connect(g_queryInfo.host,
@@ -6591,7 +6602,7 @@ static void *specifiedSubscribe(void *sarg) {
     for (int i = 0; i < g_queryInfo.specifiedQueryInfo.sqlCount; i++) {
       sprintf(topic, "taosdemo-subscribe-%d", i);
       char tmpFile[MAX_FILE_NAME_LEN*2] = {0};
-      if (g_queryInfo.superQueryInfo.result[i][0] != 0) {
+      if (g_queryInfo.specifiedQueryInfo.result[i][0] != 0) {
         sprintf(tmpFile, "%s-%d",
                 g_queryInfo.specifiedQueryInfo.result[i], pThreadInfo->threadID);
       }
@@ -6610,7 +6621,7 @@ static void *specifiedSubscribe(void *sarg) {
   TAOS_RES* res = NULL;
   while(1) {
     for (int i = 0; i < g_queryInfo.specifiedQueryInfo.sqlCount; i++) {
-      if (SYNC_QUERY_MODE == g_queryInfo.specifiedQueryInfo.mode) {
+      if (ASYNC_QUERY_MODE == g_queryInfo.specifiedQueryInfo.mode) {
         continue;
       }
 
@@ -6710,21 +6721,21 @@ static int subscribeTestProcess() {
       exit(-1);
     }
 
-    int ntables = g_queryInfo.superQueryInfo.childTblCount;
+    uint64_t ntables = g_queryInfo.superQueryInfo.childTblCount;
     int threads = g_queryInfo.superQueryInfo.threadCnt;
 
-    int a = ntables / threads;
+    uint64_t a = ntables / threads;
     if (a < 1) {
       threads = ntables;
       a = 1;
     }
 
-    int b = 0;
+    uint64_t b = 0;
     if (threads != 0) {
       b = ntables % threads;
     }
 
-    int startFrom = 0;
+    uint64_t startFrom = 0;
     for (int i = 0; i < threads; i++) {
       threadInfo *t_info = infosOfSub + i;
       t_info->threadID = i;