chrome/browser/importer/firefox_profile_lock.cc

   1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/importer/firefox_profile_lock.h"
   6
   7 #include "base/files/file_path.h"
   8 #include "base/threading/thread_restrictions.h"
   9
  10 // This class is based on Firefox code in:
  11 //   profile/dirserviceprovider/src/nsProfileLock.cpp
  12 // The license block is:
  13
  14 /* ***** BEGIN LICENSE BLOCK *****
  15 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  16 *
  17 * The contents of this file are subject to the Mozilla Public License Version
  18 * 1.1 (the "License"); you may not use this file except in compliance with
  19 * the License. You may obtain a copy of the License at
  20 * http://www.mozilla.org/MPL/
  21 *
  22 * Software distributed under the License is distributed on an "AS IS" basis,
  23 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  24 * for the specific language governing rights and limitations under the
  25 * License.
  26 *
  27 * The Original Code is mozilla.org code.
  28 *
  29 * The Initial Developer of the Original Code is
  30 * Netscape Communications Corporation.
  31 * Portions created by the Initial Developer are Copyright (C) 2002
  32 * the Initial Developer. All Rights Reserved.
  33 *
  34 * Contributor(s):
  35 *   Conrad Carlen <ccarlen@netscape.com>
  36 *   Brendan Eich <brendan@mozilla.org>
  37 *   Colin Blake <colin@theblakes.com>
  38 *   Javier Pedemonte <pedemont@us.ibm.com>
  39 *   Mats Palmgren <mats.palmgren@bredband.net>
  40 *
  41 * Alternatively, the contents of this file may be used under the terms of
  42 * either the GNU General Public License Version 2 or later (the "GPL"), or
  43 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  44 * in which case the provisions of the GPL or the LGPL are applicable instead
  45 * of those above. If you wish to allow use of your version of this file only
  46 * under the terms of either the GPL or the LGPL, and not to allow others to
  47 * use your version of this file under the terms of the MPL, indicate your
  48 * decision by deleting the provisions above and replace them with the notice
  49 * and other provisions required by the GPL or the LGPL. If you do not delete
  50 * the provisions above, a recipient may use your version of this file under
  51 * the terms of any one of the MPL, the GPL or the LGPL.
  52 *
  53 * ***** END LICENSE BLOCK ***** */
  54
  55 // static
  56 #if defined(OS_MACOSX)
  57 const base::FilePath::CharType* FirefoxProfileLock::kLockFileName =
  58     FILE_PATH_LITERAL(".parentlock");
  59 const base::FilePath::CharType* FirefoxProfileLock::kOldLockFileName =
  60     FILE_PATH_LITERAL("parent.lock");
  61 #elif defined(OS_POSIX)
  62 // http://www.google.com/codesearch/p?hl=en#e_ObwTAVPyo/profile/dirserviceprovider/src/nsProfileLock.cpp&l=433
  63 const base::FilePath::CharType* FirefoxProfileLock::kLockFileName =
  64     FILE_PATH_LITERAL(".parentlock");
  65 const base::FilePath::CharType* FirefoxProfileLock::kOldLockFileName =
  66     FILE_PATH_LITERAL("lock");
  67 #else
  68 const base::FilePath::CharType* FirefoxProfileLock::kLockFileName =
  69     FILE_PATH_LITERAL("parent.lock");
  70 #endif
  71
  72 FirefoxProfileLock::FirefoxProfileLock(const base::FilePath& path) {
  73   Init();
  74   lock_file_ = path.Append(kLockFileName);
  75   Lock();
  76 }
  77
  78 FirefoxProfileLock::~FirefoxProfileLock() {
  79   // Because this destructor happens in first run on the profile import thread,
  80   // with no UI to jank, it's ok to allow deletion of the lock here.
  81   base::ThreadRestrictions::ScopedAllowIO allow_io;
  82   Unlock();
  83 }