support reopen stream state

source/libs/stream/src/streamMeta.c

@@ -157,7 +157,20 @@ int32_t streamMetaReopen(SStreamMeta* pMeta, int64_t chkpId) {
   pMeta->streamBackendRid = -1;
   pMeta->streamBackend = NULL;
 
-  pMeta->streamBackend = streamBackendInit(pMeta->path, chkpId);
+  char* path1 = taosMemoryCalloc(1, strlen(pMeta->path) + 64);
+  sprintf(path1, "%s%s%s", pMeta->path, TD_DIRSEP, "state");
+  taosRemoveDir(path1);
+
+  char* path2 = taosMemoryCalloc(1, strlen(pMeta->path) + 64);
+  sprintf(path2, "%s%s%s", pMeta->path, TD_DIRSEP, "received");
+
+  if (taosRenameFile(path2, path1) < 0) {
+    taosMemoryFree(path1);
+    taosMemoryFree(path2);
+    return -1;
+  }
+
+  pMeta->streamBackend = streamBackendInit(pMeta->path, 0);
   pMeta->streamBackendRid = taosAddRef(streamBackendId, pMeta->streamBackend);
 
   taosHashClear(pMeta->pTasks);
@@ -170,8 +183,6 @@ int32_t streamMetaReopen(SStreamMeta* pMeta, int64_t chkpId) {
 
   taosArrayClear(pMeta->checkpointInUse);
 
-  // if (streamLoadTasks(pMeta,int64_t ver))
-
   return 0;
 }
 void streamMetaClose(SStreamMeta* pMeta) {