firefox_profile_lock_win.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2008 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/importer/firefox_profile_lock.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This class is based on Firefox code in: 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// profile/dirserviceprovider/src/nsProfileLock.cpp 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The license block is: 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* ***** BEGIN LICENSE BLOCK ***** 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Version: MPL 1.1/GPL 2.0/LGPL 2.1 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* The contents of this file are subject to the Mozilla Public License Version 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* 1.1 (the "License"); you may not use this file except in compliance with 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* the License. You may obtain a copy of the License at 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* http://www.mozilla.org/MPL/ 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Software distributed under the License is distributed on an "AS IS" basis, 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* for the specific language governing rights and limitations under the 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* License. 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* The Original Code is mozilla.org code. 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* The Initial Developer of the Original Code is 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Netscape Communications Corporation. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Portions created by the Initial Developer are Copyright (C) 2002 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* the Initial Developer. All Rights Reserved. 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Contributor(s): 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Conrad Carlen <ccarlen@netscape.com> 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Brendan Eich <brendan@mozilla.org> 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Colin Blake <colin@theblakes.com> 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Javier Pedemonte <pedemont@us.ibm.com> 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Mats Palmgren <mats.palmgren@bredband.net> 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* Alternatively, the contents of this file may be used under the terms of 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* either the GNU General Public License Version 2 or later (the "GPL"), or 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* in which case the provisions of the GPL or the LGPL are applicable instead 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* of those above. If you wish to allow use of your version of this file only 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* under the terms of either the GPL or the LGPL, and not to allow others to 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* use your version of this file under the terms of the MPL, indicate your 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* decision by deleting the provisions above and replace them with the notice 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* and other provisions required by the GPL or the LGPL. If you do not delete 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* the provisions above, a recipient may use your version of this file under 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* the terms of any one of the MPL, the GPL or the LGPL. 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)* ***** END LICENSE BLOCK ***** */ 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FirefoxProfileLock::Init() { 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lock_handle_ = INVALID_HANDLE_VALUE; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FirefoxProfileLock::Lock() { 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (HasAcquired()) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lock_handle_ = CreateFile(lock_file_.value().c_str(), 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_ALWAYS, 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FILE_FLAG_DELETE_ON_CLOSE, NULL); 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FirefoxProfileLock::Unlock() { 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!HasAcquired()) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CloseHandle(lock_handle_); 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lock_handle_ = INVALID_HANDLE_VALUE; 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool FirefoxProfileLock::HasAcquired() { 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (lock_handle_ != INVALID_HANDLE_VALUE); 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 76