chrome/browser/sync_file_system/drive_backend/tracker_id_set.h

   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 #ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_TRACKER_ID_SET_H_
   6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_TRACKER_ID_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 TrackerIDSet {
  18  public:
  19   typedef std::set<int64> RawTrackerIDSet;
  20   typedef RawTrackerIDSet::iterator iterator;
  21   typedef RawTrackerIDSet::const_iterator const_iterator;
  22
  23   TrackerIDSet();
  24   ~TrackerIDSet();
  25
  26   bool has_active() const { return !!active_tracker_; }
  27   void Insert(const FileTracker& tracker);
  28   void InsertActiveTracker(int64 tracker_id);
  29   void InsertInactiveTracker(int64 tracker_id);
  30   void Erase(int64 tracker_id);
  31   void Activate(int64 tracker_id);
  32   void Deactivate(int64 tracker_id);
  33
  34   int64 active_tracker() const { return active_tracker_; }
  35   const RawTrackerIDSet& tracker_set() const { return tracker_ids_; }
  36
  37   iterator begin() { return tracker_ids_.begin(); }
  38   iterator end() { return tracker_ids_.end(); }
  39   const_iterator begin() const { return tracker_ids_.begin(); }
  40   const_iterator end() const { return tracker_ids_.end(); }
  41   bool empty() const { return tracker_ids_.empty(); }
  42   size_t size() const { return tracker_ids_.size(); }
  43
  44  private:
  45   int64 active_tracker_;
  46   RawTrackerIDSet tracker_ids_;
  47 };
  48
  49 }  // namespace drive_backend
  50 }  // namespace sync_file_system
  51
  52 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_TRACKER_ID_SET_H_