1// Copyright (c) 2011 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// Cross platform methods for FilePathWatcher. See the various platform 6// specific implementation files, too. 7 8#include "base/files/file_path_watcher.h" 9 10#include "base/logging.h" 11#include "base/message_loop/message_loop.h" 12 13#if defined(OS_MACOSX) && !defined(OS_IOS) 14#include "base/mac/mac_util.h" 15#endif 16 17namespace base { 18 19FilePathWatcher::~FilePathWatcher() { 20 impl_->Cancel(); 21} 22 23// static 24void FilePathWatcher::CancelWatch( 25 const scoped_refptr<PlatformDelegate>& delegate) { 26 delegate->CancelOnMessageLoopThread(); 27} 28 29// static 30bool FilePathWatcher::RecursiveWatchAvailable() { 31#if defined(OS_MACOSX) && !defined(OS_IOS) 32 // FSEvents isn't available on iOS and is broken on OSX 10.6 and earlier. 33 // See http://crbug.com/54822#c31 34 return mac::IsOSLionOrLater(); 35#elif defined(OS_WIN) || defined(OS_LINUX) 36 return true; 37#else 38 return false; 39#endif 40} 41 42FilePathWatcher::PlatformDelegate::PlatformDelegate(): cancelled_(false) { 43} 44 45FilePathWatcher::PlatformDelegate::~PlatformDelegate() { 46 DCHECK(is_cancelled()); 47} 48 49bool FilePathWatcher::Watch(const FilePath& path, 50 bool recursive, 51 const Callback& callback) { 52 DCHECK(path.IsAbsolute()); 53 return impl_->Watch(path, recursive, callback); 54} 55 56} // namespace base 57