Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 1 | // Copyright 2013 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 | #ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_TRACKER_SET_H_ |
| 6 | #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_TRACKER_SET_H_ |
| 7 | |
| 8 | #include <set> |
| 9 | |
| 10 | namespace sync_file_system { |
| 11 | namespace drive_backend { |
| 12 | |
| 13 | class FileTracker; |
| 14 | |
| 15 | class TrackerSet { |
| 16 | public: |
| 17 | struct TrackerComparator { |
| 18 | bool operator()(const FileTracker* left, |
| 19 | const FileTracker* right) const; |
| 20 | }; |
| 21 | |
| 22 | typedef std::set<FileTracker*, TrackerComparator> RawTrackerSet; |
| 23 | typedef RawTrackerSet::iterator iterator; |
| 24 | typedef RawTrackerSet::const_iterator const_iterator; |
| 25 | |
| 26 | TrackerSet(); |
| 27 | ~TrackerSet(); |
| 28 | |
| 29 | bool has_active() const { return !!active_tracker_; } |
| 30 | void Insert(FileTracker* tracker); |
| 31 | void Erase(FileTracker* tracker); |
| 32 | void Activate(FileTracker* tracker); |
| 33 | void Inactivate(FileTracker* tracker); |
| 34 | |
| 35 | const FileTracker* active_tracker() const { return active_tracker_; } |
| 36 | const RawTrackerSet& tracker_set() const { return tracker_set_; } |
| 37 | |
| 38 | iterator begin() { return tracker_set_.begin(); } |
| 39 | iterator end() { return tracker_set_.end(); } |
| 40 | const_iterator begin() const { return tracker_set_.begin(); } |
| 41 | const_iterator end() const { return tracker_set_.end(); } |
| 42 | |
| 43 | private: |
| 44 | FileTracker* active_tracker_; |
| 45 | RawTrackerSet tracker_set_; |
| 46 | }; |
| 47 | |
| 48 | } // namespace drive_backend |
| 49 | } // namespace sync_file_system |
| 50 | |
| 51 | #endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_TRACKER_SET_H_ |