[email protected] | 6d2d92a | 2014-06-11 07:15:24 | [diff] [blame] | 1 | // Copyright 2014 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 "base/files/file_path_watcher.h" |
| 6 | #include "base/files/file_path_watcher_kqueue.h" |
| 7 | |
| 8 | #if !defined(OS_IOS) |
| 9 | #include "base/files/file_path_watcher_fsevents.h" |
| 10 | #endif |
| 11 | |
| 12 | namespace base { |
| 13 | |
| 14 | namespace { |
| 15 | |
| 16 | class FilePathWatcherImpl : public FilePathWatcher::PlatformDelegate { |
| 17 | public: |
dcheng | 5648818 | 2014-10-21 10:54:51 | [diff] [blame] | 18 | bool Watch(const FilePath& path, |
| 19 | bool recursive, |
| 20 | const FilePathWatcher::Callback& callback) override { |
[email protected] | 6d2d92a | 2014-06-11 07:15:24 | [diff] [blame] | 21 | // Use kqueue for non-recursive watches and FSEvents for recursive ones. |
| 22 | DCHECK(!impl_.get()); |
| 23 | if (recursive) { |
| 24 | if (!FilePathWatcher::RecursiveWatchAvailable()) |
| 25 | return false; |
| 26 | #if !defined(OS_IOS) |
| 27 | impl_ = new FilePathWatcherFSEvents(); |
| 28 | #endif // OS_IOS |
| 29 | } else { |
| 30 | impl_ = new FilePathWatcherKQueue(); |
| 31 | } |
| 32 | DCHECK(impl_.get()); |
| 33 | return impl_->Watch(path, recursive, callback); |
| 34 | } |
| 35 | |
dcheng | 5648818 | 2014-10-21 10:54:51 | [diff] [blame] | 36 | void Cancel() override { |
dcheng | c041fef | 2014-09-20 03:31:22 | [diff] [blame] | 37 | if (impl_.get()) |
[email protected] | 6d2d92a | 2014-06-11 07:15:24 | [diff] [blame] | 38 | impl_->Cancel(); |
| 39 | set_cancelled(); |
| 40 | } |
| 41 | |
dcheng | 5648818 | 2014-10-21 10:54:51 | [diff] [blame] | 42 | void CancelOnMessageLoopThread() override { |
dcheng | c041fef | 2014-09-20 03:31:22 | [diff] [blame] | 43 | if (impl_.get()) |
[email protected] | 6d2d92a | 2014-06-11 07:15:24 | [diff] [blame] | 44 | impl_->Cancel(); |
| 45 | set_cancelled(); |
| 46 | } |
| 47 | |
| 48 | protected: |
dcheng | 5648818 | 2014-10-21 10:54:51 | [diff] [blame] | 49 | ~FilePathWatcherImpl() override {} |
[email protected] | 6d2d92a | 2014-06-11 07:15:24 | [diff] [blame] | 50 | |
| 51 | scoped_refptr<PlatformDelegate> impl_; |
| 52 | }; |
| 53 | |
| 54 | } // namespace |
| 55 | |
| 56 | FilePathWatcher::FilePathWatcher() { |
| 57 | impl_ = new FilePathWatcherImpl(); |
| 58 | } |
| 59 | |
| 60 | } // namespace base |