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Test cases and minor code changes to increase coverage of btree.c. (CVS 6456)

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FossilOrigin-Name: def3a016914f683818b5f013ec4efecbb8fd4c0d
This commit is contained in:
danielk1977
2009-04-06 17:50:03 +00:00
parent 1a25f11ccc
commit ef165cedeb
8 changed files with 144 additions and 27 deletions
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14
src/btree.c
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@@ -9,7 +9,7 @@
** May you share freely, never taking more than you give.
**
*************************************************************************
** $Id: btree.c,v 1.590 2009/04/05 12:22:09 drh Exp $
** $Id: btree.c,v 1.591 2009/04/06 17:50:03 danielk1977 Exp $
**
** This file implements a external (disk-based) database using BTrees.
** See the header comment on "btreeInt.h" for additional information.
@@ -2582,16 +2582,18 @@ static int autoVacuumCommit(BtShared *pBt){
const int pgsz = pBt->pageSize;
Pgno nOrig = pagerPagecount(pBt);
if( PTRMAP_ISPAGE(pBt, nOrig) ){
if( PTRMAP_ISPAGE(pBt, nOrig) || nOrig==PENDING_BYTE_PAGE(pBt) ){
/* It is not possible to create a database for which the final page
** is either a pointer-map page or the pending-byte page. If one
** is encountered, this indicates corruption.
*/
return SQLITE_CORRUPT_BKPT;
}
if( nOrig==PENDING_BYTE_PAGE(pBt) ){
nOrig--;
}
nFree = get4byte(&pBt->pPage1->aData[36]);
nPtrmap = (nFree-nOrig+PTRMAP_PAGENO(pBt, nOrig)+pgsz/5)/(pgsz/5);
nFin = nOrig - nFree - nPtrmap;
if( nOrig>PENDING_BYTE_PAGE(pBt) && nFin<=PENDING_BYTE_PAGE(pBt) ){
if( nOrig>PENDING_BYTE_PAGE(pBt) && nFin<PENDING_BYTE_PAGE(pBt) ){
nFin--;
}
while( PTRMAP_ISPAGE(pBt, nFin) || nFin==PENDING_BYTE_PAGE(pBt) ){