1c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Copyright (c) 2008 The Chromium Authors. All rights reserved. 2c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// found in the LICENSE file. 4c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 5c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/importer/firefox_profile_lock.h" 6c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 7c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include <windows.h> 8c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 9c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// This class is based on Firefox code in: 10c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// profile/dirserviceprovider/src/nsProfileLock.cpp 11c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// The license block is: 12c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 13c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch/* ***** BEGIN LICENSE BLOCK ***** 14c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Version: MPL 1.1/GPL 2.0/LGPL 2.1 15c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* 16c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* The contents of this file are subject to the Mozilla Public License Version 17c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* 1.1 (the "License"); you may not use this file except in compliance with 18c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* the License. You may obtain a copy of the License at 19c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* http://www.mozilla.org/MPL/ 20c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* 21c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Software distributed under the License is distributed on an "AS IS" basis, 22c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 23c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* for the specific language governing rights and limitations under the 24c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* License. 25c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* 26c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* The Original Code is mozilla.org code. 27c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* 28c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* The Initial Developer of the Original Code is 29c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Netscape Communications Corporation. 30c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Portions created by the Initial Developer are Copyright (C) 2002 31c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* the Initial Developer. All Rights Reserved. 32c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* 33c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Contributor(s): 34c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Conrad Carlen <ccarlen@netscape.com> 35c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Brendan Eich <brendan@mozilla.org> 36c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Colin Blake <colin@theblakes.com> 37c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Javier Pedemonte <pedemont@us.ibm.com> 38c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Mats Palmgren <mats.palmgren@bredband.net> 39c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* 40c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* Alternatively, the contents of this file may be used under the terms of 41c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* either the GNU General Public License Version 2 or later (the "GPL"), or 42c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), 43c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* in which case the provisions of the GPL or the LGPL are applicable instead 44c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* of those above. If you wish to allow use of your version of this file only 45c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* under the terms of either the GPL or the LGPL, and not to allow others to 46c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* use your version of this file under the terms of the MPL, indicate your 47c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* decision by deleting the provisions above and replace them with the notice 48c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* and other provisions required by the GPL or the LGPL. If you do not delete 49c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* the provisions above, a recipient may use your version of this file under 50c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* the terms of any one of the MPL, the GPL or the LGPL. 51c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* 52c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch* ***** END LICENSE BLOCK ***** */ 53c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 54c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochvoid FirefoxProfileLock::Init() { 55c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch lock_handle_ = INVALID_HANDLE_VALUE; 56c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 57c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 58c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochvoid FirefoxProfileLock::Lock() { 59c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (HasAcquired()) 60c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return; 61c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch lock_handle_ = CreateFile(lock_file_.value().c_str(), 62c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_ALWAYS, 63c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch FILE_FLAG_DELETE_ON_CLOSE, NULL); 64c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 65c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 66c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochvoid FirefoxProfileLock::Unlock() { 67c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (!HasAcquired()) 68c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return; 69c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch CloseHandle(lock_handle_); 70c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch lock_handle_ = INVALID_HANDLE_VALUE; 71c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 72c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 73c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochbool FirefoxProfileLock::HasAcquired() { 74c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return (lock_handle_ != INVALID_HANDLE_VALUE); 75c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 76