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Overview
Comment:Take care not to invoke the xShmClose method of the VFS with a NULL shared memory object.
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SHA1: 1465d3842c52aa7471f63deb47fe5b256d4e01c2
User & Date: drh 2010-05-04 16:33:38.000
Context
2010-05-04
17:20
Relax an over-zealous assert() in sqlite3WalUndo(). (check-in: 8f9d22d58c user: drh tags: trunk)
16:33
Take care not to invoke the xShmClose method of the VFS with a NULL shared memory object. (check-in: 1465d3842c user: drh tags: trunk)
15:20
Add a test case to verify that log files containing pages that are not a power-of-two bytes in size are handled correctly. (check-in: c2bf693f93 user: dan tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/wal.c.
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  /* Open file handle on the write-ahead log file. */
  if( rc==SQLITE_OK ){
    flags = (SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_MAIN_JOURNAL);
    rc = sqlite3OsOpen(pVfs, zWal, pRet->pFd, flags, &flags);
  }

  if( rc!=SQLITE_OK ){
    pVfs->xShmClose(pVfs, pRet->pWIndex, 0);
    sqlite3OsClose(pRet->pFd);
    sqlite3_free(pRet);
  }else{
    *ppWal = pRet;
  }
  return rc;
}








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609
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  /* Open file handle on the write-ahead log file. */
  if( rc==SQLITE_OK ){
    flags = (SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_MAIN_JOURNAL);
    rc = sqlite3OsOpen(pVfs, zWal, pRet->pFd, flags, &flags);
  }

  if( rc!=SQLITE_OK ){
    if( pRet->pWIndex ) pVfs->xShmClose(pVfs, pRet->pWIndex, 0);
    sqlite3OsClose(pRet->pFd);
    sqlite3_free(pRet);
  }else{
    *ppWal = pRet;
  }
  return rc;
}
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