enhance stream backend for sma

include/libs/stream/streamState.h

@@ -34,7 +34,7 @@ typedef struct {
   TXN          txn;
 } SStreamState;
 
-SStreamState* streamStateOpen(char* path, SStreamTask* pTask);
+SStreamState* streamStateOpen(char* path, SStreamTask* pTask, bool specPath);
 void          streamStateClose(SStreamState* pState);
 int32_t       streamStateBegin(SStreamState* pState);
 int32_t       streamStateCommit(SStreamState* pState);

source/dnode/vnode/src/tq/tq.c

@@ -760,7 +760,7 @@ int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask) {
 
   // expand executor
   if (pTask->taskLevel == TASK_LEVEL__SOURCE) {
-    pTask->pState = streamStateOpen(pTq->pStreamMeta->path, pTask);
+    pTask->pState = streamStateOpen(pTq->pStreamMeta->path, pTask, false);
     if (pTask->pState == NULL) {
       return -1;
     }
@@ -774,7 +774,7 @@ int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask) {
     pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, &handle);
     ASSERT(pTask->exec.executor);
   } else if (pTask->taskLevel == TASK_LEVEL__AGG) {
-    pTask->pState = streamStateOpen(pTq->pStreamMeta->path, pTask);
+    pTask->pState = streamStateOpen(pTq->pStreamMeta->path, pTask, false);
     if (pTask->pState == NULL) {
       return -1;
     }

source/libs/stream/src/streamState.c

@@ -18,14 +18,19 @@
 #include "tcommon.h"
 #include "ttimer.h"
 
-SStreamState* streamStateOpen(char* path, SStreamTask* pTask) {
+SStreamState* streamStateOpen(char* path, SStreamTask* pTask, bool specPath) {
   SStreamState* pState = taosMemoryCalloc(1, sizeof(SStreamState));
   if (pState == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return NULL;
   }
+
   char statePath[300];
-  sprintf(statePath, "%s/%d", path, pTask->taskId);
+  if (!specPath) {
+    sprintf(statePath, "%s/%d", path, pTask->taskId);
+  } else {
+    memcpy(statePath, path, 300);
+  }
   if (tdbOpen(statePath, 4096, 256, &pState->db) < 0) {
     goto _err;
   }

source/libs/wal/src/walMeta.c

@@ -268,7 +268,7 @@ int walRollFileInfo(SWal* pWal) {
 char* walMetaSerialize(SWal* pWal) {
   char buf[30];
   ASSERT(pWal->fileInfoSet);
-  int    sz = pWal->fileInfoSet->size;
+  int    sz = taosArrayGetSize(pWal->fileInfoSet);
   cJSON* pRoot = cJSON_CreateObject();
   cJSON* pMeta = cJSON_CreateObject();
   cJSON* pFiles = cJSON_CreateArray();