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Overview
Comment:Return immediately if sqlite3PagerWrite() is called when the pager is in PAGER_ERROR state.
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SHA1: a6695b008487aeb7badf572fa32bfcba3c9fab03
User & Date: dan 2015-10-30 14:28:16.049
Context
2015-10-30
16:14
Add new API function sqlite3_db_cacheflush(). (check-in: ad80d30733 user: dan tags: trunk)
14:28
Return immediately if sqlite3PagerWrite() is called when the pager is in PAGER_ERROR state. (Closed-Leaf check-in: a6695b0084 user: dan tags: cacheflush)
09:13
Test that calling sqlite3_db_cacheflush() does not interfere with savepoints. (check-in: 0e09e4a269 user: dan tags: cacheflush)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/pager.c.
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** If an error occurs, SQLITE_NOMEM or an IO error code is returned
** as appropriate. Otherwise, SQLITE_OK.
*/
int sqlite3PagerWrite(PgHdr *pPg){
  Pager *pPager = pPg->pPager;
  assert( (pPg->flags & PGHDR_MMAP)==0 );
  assert( pPager->eState>=PAGER_WRITER_LOCKED );
  assert( pPager->eState!=PAGER_ERROR );
  assert( assert_pager_state(pPager) );


  if( (pPg->flags & PGHDR_WRITEABLE)!=0 && pPager->dbSize>=pPg->pgno ){
    if( pPager->nSavepoint ) return subjournalPageIfRequired(pPg);
    return SQLITE_OK;
  }else if( pPager->sectorSize > (u32)pPager->pageSize ){
    return pagerWriteLargeSector(pPg);
  }else{
    return pager_write(pPg);
  }








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** If an error occurs, SQLITE_NOMEM or an IO error code is returned
** as appropriate. Otherwise, SQLITE_OK.
*/
int sqlite3PagerWrite(PgHdr *pPg){
  Pager *pPager = pPg->pPager;
  assert( (pPg->flags & PGHDR_MMAP)==0 );
  assert( pPager->eState>=PAGER_WRITER_LOCKED );

  assert( assert_pager_state(pPager) );
  if( pPager->errCode ){
    return pPager->errCode;
  }else if( (pPg->flags & PGHDR_WRITEABLE)!=0 && pPager->dbSize>=pPg->pgno ){
    if( pPager->nSavepoint ) return subjournalPageIfRequired(pPg);
    return SQLITE_OK;
  }else if( pPager->sectorSize > (u32)pPager->pageSize ){
    return pagerWriteLargeSector(pPg);
  }else{
    return pager_write(pPg);
  }
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