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Check-in [f4288520df]
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Overview
Comment:Rewind the checkpoint journal after each statement to avoid allowing the file to become too large. (CVS 744)
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SHA1: f4288520dfd1587446e50fa7ef23f75f6f63a7cf
User & Date: drh 2002-09-05 19:10:33.000
Context
2002-09-05
23:21
Fix a memory leak that occurred when sqlite_open() failed. (CVS 745) (check-in: a876021304 user: drh tags: trunk)
19:10
Rewind the checkpoint journal after each statement to avoid allowing the file to become too large. (CVS 744) (check-in: f4288520df user: drh tags: trunk)
16:08
Fix for ticket #146: Correctly handle reads of unused disk blocks at the end of the file. (CVS 743) (check-in: f5c2654768 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/pager.c.
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** The pager is used to access a database disk file.  It implements
** atomic commit and rollback through the use of a journal file that
** is separate from the database file.  The pager also implements file
** locking to prevent two processes from writing the same database
** file simultaneously, or one process from reading the database while
** another is writing.
**
** @(#) $Id: pager.c,v 1.52 2002/09/05 16:08:27 drh Exp $
*/
#include "sqliteInt.h"
#include "pager.h"
#include "os.h"
#include <assert.h>
#include <string.h>









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** The pager is used to access a database disk file.  It implements
** atomic commit and rollback through the use of a journal file that
** is separate from the database file.  The pager also implements file
** locking to prevent two processes from writing the same database
** file simultaneously, or one process from reading the database while
** another is writing.
**
** @(#) $Id: pager.c,v 1.53 2002/09/05 19:10:33 drh Exp $
*/
#include "sqliteInt.h"
#include "pager.h"
#include "os.h"
#include <assert.h>
#include <string.h>
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/*
** Commit a checkpoint.
*/
int sqlitepager_ckpt_commit(Pager *pPager){
  if( pPager->ckptInUse ){
    PgHdr *pPg;

    sqliteOsTruncate(&pPager->cpfd, 0);
    pPager->ckptInUse = 0;
    sqliteFree( pPager->aInCkpt );
    pPager->aInCkpt = 0;
    for(pPg=pPager->pAll; pPg; pPg=pPg->pNextAll){
      pPg->inCkpt = 0;
    }








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/*
** Commit a checkpoint.
*/
int sqlitepager_ckpt_commit(Pager *pPager){
  if( pPager->ckptInUse ){
    PgHdr *pPg;
    sqliteOsSeek(&pPager->cpfd, 0);
    sqliteOsTruncate(&pPager->cpfd, 0);
    pPager->ckptInUse = 0;
    sqliteFree( pPager->aInCkpt );
    pPager->aInCkpt = 0;
    for(pPg=pPager->pAll; pPg; pPg=pPg->pNextAll){
      pPg->inCkpt = 0;
    }
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