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