support reopen stream state

source/libs/stream/src/streamBackendRocksdb.c

@@ -299,11 +299,12 @@ _EXIT:
 }
 void streamBackendCleanup(void* arg) {
   SBackendWrapper* pHandle = (SBackendWrapper*)arg;
-  RocksdbCfInst**  pIter = (RocksdbCfInst**)taosHashIterate(pHandle->cfInst, NULL);
+
+  void* pIter = taosHashIterate(pHandle->cfInst, NULL);
   while (pIter != NULL) {
-    RocksdbCfInst* inst = *pIter;
+    RocksdbCfInst* inst = *(RocksdbCfInst**)pIter;
     destroyRocksdbCfInst(inst);
-    taosHashIterate(pHandle->cfInst, pIter);
+    pIter = taosHashIterate(pHandle->cfInst, pIter);
   }
   taosHashCleanup(pHandle->cfInst);
 
@@ -1103,7 +1104,8 @@ int32_t streamStateOpenBackendCf(void* backend, char* name, char** cfs, int32_t
   static int32_t cfLen = sizeof(ginitDict) / sizeof(ginitDict[0]);
   for (int i = 0; i < nCf; i++) {
     char* cf = cfs[i];
-    if (i == 0) continue;
+    if (i == 0) continue;  // skip default column family, not set opt
+
     char funcname[64] = {0};
     if (3 == sscanf(cf, "0x%" PRIx64 "-%d_%s", &streamId, &taskId, funcname)) {
       char idstr[128] = {0};
@@ -1125,7 +1127,6 @@ int32_t streamStateOpenBackendCf(void* backend, char* name, char** cfs, int32_t
         inst->pCompares = taosMemoryCalloc(cfLen, sizeof(rocksdb_comparator_t*));
 
         inst->dbOpt = handle->dbOpt;
-        // rocksdb_writeoptions_disable_WAL(inst->wOpt, 1);
         taosHashPut(handle->cfInst, idstr, strlen(idstr) + 1, &inst, sizeof(void*));
       } else {
         inst = *pInst;
@@ -1136,9 +1137,9 @@ int32_t streamStateOpenBackendCf(void* backend, char* name, char** cfs, int32_t
       inst->pHandle[idx] = cfHandle[i];
     }
   }
-  void** pIter = taosHashIterate(handle->cfInst, NULL);
+  void* pIter = taosHashIterate(handle->cfInst, NULL);
   while (pIter) {
-    RocksdbCfInst* inst = *pIter;
+    RocksdbCfInst* inst = *(RocksdbCfInst**)pIter;
 
     for (int i = 0; i < cfLen; i++) {
       if (inst->cfOpt[i] == NULL) {
@@ -1179,8 +1180,8 @@ int streamStateOpenBackend(void* backend, SStreamState* pState) {
   taosAcquireRef(streamBackendId, pState->streamBackendRid);
   SBackendWrapper*   handle = backend;
   SBackendCfWrapper* pBackendCfWrapper = taosMemoryCalloc(1, sizeof(SBackendCfWrapper));
-  taosThreadMutexLock(&handle->cfMutex);
 
+  taosThreadMutexLock(&handle->cfMutex);
   RocksdbCfInst** ppInst = taosHashGet(handle->cfInst, pState->pTdbState->idstr, strlen(pState->pTdbState->idstr) + 1);
   if (ppInst != NULL && *ppInst != NULL) {
     RocksdbCfInst* inst = *ppInst;