storage/aaGuard.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent tw=79 ft=cpp: */
   3 /*
   4  * Copyright (C) 2007 Sergey Yanovich <ynvich@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifndef AAGUARD_H
  23 #define AAGUARD_H 1
  24
  25 class aaGuard
  26 {
  27 public:
  28   aaGuard(mozIStorageConnection *aConnection)
  29     :mConnection(aConnection) {;}
  30   ~aaGuard() { if (mConnection) mConnection->RollbackTransaction(); }
  31   nsresult Dismiss();
  32 private:
  33   mozIStorageConnection *mConnection;
  34 };
  35
  36 inline nsresult
  37 aaGuard::Dismiss()
  38 {
  39   mozIStorageConnection *tmp = mConnection;
  40   mConnection = nsnull;
  41   return tmp->CommitTransaction();
  42 }
  43
  44 #endif /* AAGUARD_H */