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Do not attempt to write to temporary database files that have never

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been opened. (CVS 5007)

FossilOrigin-Name: 7bb9a4165afb96043dfeffad21eb51591a1fd2dd
This commit is contained in:
drh
2008-04-14 23:13:45 +00:00
parent 57ee05248d
commit 4c02a23557
3 changed files with 15 additions and 10 deletions
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9
src/pager.c
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@@ -18,7 +18,7 @@
** file simultaneously, or one process from reading the database while
** another is writing.
**
** @(#) $Id: pager.c,v 1.425 2008/04/14 16:37:10 danielk1977 Exp $
** @(#) $Id: pager.c,v 1.426 2008/04/14 23:13:46 drh Exp $
*/
#ifndef SQLITE_OMIT_DISKIO
#include "sqliteInt.h"
@@ -1502,11 +1502,16 @@ static int pager_playback_one_page(
** locked. (2) we know that the original page content is fully synced
** in the main journal either because the page is not in cache or else
** the page is marked as needSync==0.
**
** 2008-04-14: When attempting to vacuum a corrupt database file, it
** is possible to fail a statement on a database that does not yet exist.
** Do not attempt to write if database file has never been opened.
*/
pPg = pager_lookup(pPager, pgno);
PAGERTRACE4("PLAYBACK %d page %d hash(%08x)\n",
PAGERID(pPager), pgno, pager_datahash(pPager->pageSize, aData));
if( pPager->state>=PAGER_EXCLUSIVE && (pPg==0 || pPg->needSync==0) ){
if( pPager->state>=PAGER_EXCLUSIVE && (pPg==0 || pPg->needSync==0)
&& pPager->fd->pMethods ){
i64 offset = (pgno-1)*(i64)pPager->pageSize;
rc = sqlite3OsWrite(pPager->fd, aData, pPager->pageSize, offset);
if( pPg ){