SQLite: Check-in [e14ef0e8]

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Overview

Comment:	Make sure the pager cache is cleared if there is any difficulty starting a new read transaction in WAL mode. Ticket [313723c356483eff2a4c4bdd2c].
Downloads:	Tarball \| ZIP archive \| SQL archive
Timelines:	family \| ancestors \| descendants \| both \| trunk
Files:	files \| file ages \| folders
SHA1:	e14ef0e8b4a27dbd58338214242eb3928404b176
User & Date:	drh 2010-09-18 19:36:41

Context

2010-09-20
08:47		Add a test case to verify that bug [313723c356] has been fixed. check-in: 4ea134a8 user: dan tags: trunk
2010-09-18
19:36		Make sure the pager cache is cleared if there is any difficulty starting a new read transaction in WAL mode. Ticket [313723c356483eff2a4c4bdd2c]. check-in: e14ef0e8 user: drh tags: trunk
19:00		Add new test file e_insert.test. check-in: 8023a309 user: dan tags: trunk

Changes

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Changes to src/pager.c.

  ** transaction in locking_mode=EXCLUSIVE.  So call it now.  If we
  ** are in locking_mode=NORMAL and EndRead() was previously called,
  ** the duplicate call is harmless.
  */
  sqlite3WalEndReadTransaction(pPager->pWal);

  rc = sqlite3WalBeginReadTransaction(pPager->pWal, &changed);
  if( rc==SQLITE_OK && changed ){
    pager_reset(pPager);
  }

  return rc;
}
#endif

  ** transaction in locking_mode=EXCLUSIVE.  So call it now.  If we
  ** are in locking_mode=NORMAL and EndRead() was previously called,
  ** the duplicate call is harmless.
  */
  sqlite3WalEndReadTransaction(pPager->pWal);

  rc = sqlite3WalBeginReadTransaction(pPager->pWal, &changed);
  if( rc!=SQLITE_OK || changed ){
    pager_reset(pPager);
  }

  return rc;
}
#endif