more

source/libs/tdb/src/db/tdbPCache.c

@@ -120,7 +120,10 @@ static SPgHdr *tdbPCacheFetchImpl(SPCache *pCache, const SPgid *pPgid, bool alcN
   }
 
   if (pPage || !alcNewPage) {
-    if (pPage) tdbPCachePinPage(pPage);
+    if (pPage) {
+      ASSERT(pPage->isLoad == 1);
+      tdbPCachePinPage(pPage);
+    }
     return pPage;
   }
 
@@ -147,7 +150,7 @@ static SPgHdr *tdbPCacheFetchImpl(SPCache *pCache, const SPgid *pPgid, bool alcN
   if (pPage) {
     memcpy(&(pPage->pgid), pPgid, sizeof(*pPgid));
     pPage->pLruNext = NULL;
-    // *(void **)pPage->page.pExtra = 0; (TODO)
+    pPage->isLoad = 0;
     tdbPCacheAddPageToHash(pPage);
   }
 

source/libs/tdb/src/db/tdbPFile.c

@@ -84,6 +84,7 @@ SPgHdr *tdbPFileGet(SPFile *pFile, SPgno pgno) {
   }
   tdbPCacheFetchFinish(pFile->pCache, pPage);
 
+  if (!(pPage->isLoad)) {
     if (pgno > pFile->dbFileSize /*TODO*/) {
       memset(pPage->pData, 0, pFile->pageSize);
     } else {
@@ -92,6 +93,7 @@ SPgHdr *tdbPFileGet(SPFile *pFile, SPgno pgno) {
         return NULL;
       }
     }
+  }
 
   return pPage;
 }

source/libs/tdb/src/inc/tdbPCache.h

@@ -29,6 +29,7 @@ struct SPgHdr {
   SPgid    pgid;
   u8       isAnchor;
   u8       isLocalPage;
+  u8       isLoad;
   i32      nRef;
   SPCache *pCache;
   SPgHdr * pFreeNext;