more snapshot writer

source/dnode/vnode/src/meta/metaSnapshot.c

@@ -114,13 +114,13 @@ int32_t metaSnapWriterOpen(SMeta* pMeta, int64_t sver, int64_t ever, SMetaSnapWr
   return code;
 }
 
-int32_t metaSnapWrite(SMetaSnapWriter* pWriter, uint8_t* pData, uint32_t nData) {
+int32_t metaSnapWriterClose(SMetaSnapWriter** ppWriter, int8_t rollback) {
   int32_t code = 0;
   // TODO
   return code;
 }
 
-int32_t metaSnapWriterClose(SMetaSnapWriter** ppWriter, int8_t rollback) {
+int32_t metaSnapWrite(SMetaSnapWriter* pWriter, uint8_t* pData, uint32_t nData) {
   int32_t code = 0;
   // TODO
   return code;

source/dnode/vnode/src/vnd/vnodeSnapshot.c

@@ -168,8 +168,18 @@ int32_t vnodeSnapWrite(SVSnapWriter *pWriter, uint8_t *pData, uint32_t nData) {
       code = metaSnapWriterOpen(pVnode->pMeta, pWriter->sver, pWriter->ever, &pWriter->pMetaSnapWriter);
       if (code) goto _err;
     }
+
+    code = metaSnapWrite(pWriter->pMetaSnapWriter, pData + sizeof(SSnapDataHdr), nData - sizeof(SSnapDataHdr));
+    if (code) goto _err;
   } else {
     // tsdb
+    if (pWriter->pTsdbSnapWriter == NULL) {
+      code = tsdbSnapWriterOpen(pVnode->pTsdb, pWriter->sver, pWriter->ever, &pWriter->pTsdbSnapWriter);
+      if (code) goto _err;
+    }
+
+    code = tsdbSnapWrite(pWriter->pTsdbSnapWriter, pData + sizeof(SSnapDataHdr), nData - sizeof(SSnapDataHdr));
+    if (code) goto _err;
   }
 
   return code;