storage/VacuumManager.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_storage_VacuumManager_h__
   8 #define mozilla_storage_VacuumManager_h__
   9
  10 #include "nsCOMPtr.h"
  11 #include "nsIObserver.h"
  12 #include "mozIStorageVacuumParticipant.h"
  13 #include "nsCategoryCache.h"
  14 #include "mozilla/Attributes.h"
  15
  16 namespace mozilla {
  17 namespace storage {
  18
  19 class VacuumManager final : public nsIObserver {
  20  public:
  21   NS_DECL_ISUPPORTS
  22   NS_DECL_NSIOBSERVER
  23
  24   VacuumManager();
  25
  26   /**
  27    * Obtains the VacuumManager object.
  28    */
  29   static already_AddRefed<VacuumManager> getSingleton();
  30
  31  private:
  32   ~VacuumManager();
  33
  34   static VacuumManager* gVacuumManager;
  35
  36   // Cache of components registered in "vacuum-participant" category.
  37   nsCategoryCache<mozIStorageVacuumParticipant> mParticipants;
  38 };
  39
  40 }  // namespace storage
  41 }  // namespace mozilla
  42
  43 #endif