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 #include "base/basictypes.h" 11 12 namespace sync_file_system { 13 namespace drive_backend { 14 15 class FileTracker; 16 17 class TrackerSet { 18 public: 19 struct TrackerComparator { 20 bool operator()(const FileTracker* left, 21 const FileTracker* right) const; 22 }; 23 24 typedef std::set<FileTracker*, TrackerComparator> RawTrackerSet; 25 typedef RawTrackerSet::iterator iterator; 26 typedef RawTrackerSet::const_iterator const_iterator; 27 28 TrackerSet(); 29 ~TrackerSet(); 30 31 bool has_active() const { return !!active_tracker_; } 32 void Insert(FileTracker* tracker); 33 void Erase(FileTracker* tracker); 34 void Activate(FileTracker* tracker); 35 void Inactivate(FileTracker* tracker); 36 37 const FileTracker* active_tracker() const { return active_tracker_; } 38 FileTracker* active_tracker() { return active_tracker_; } 39 const RawTrackerSet& tracker_set() const { return tracker_set_; } 40 41 iterator begin() { return tracker_set_.begin(); } 42 iterator end() { return tracker_set_.end(); } 43 const_iterator begin() const { return tracker_set_.begin(); } 44 const_iterator end() const { return tracker_set_.end(); } 45 bool empty() const { return tracker_set_.empty(); } 46 size_t size() const { return tracker_set_.size(); } 47 48 private: 49 FileTracker* active_tracker_; 50 RawTrackerSet tracker_set_; 51 }; 52 53 } // namespace drive_backend 54 } // namespace sync_file_system 55 56 #endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_TRACKER_SET_H_ 57
