dom/storage/StorageActivityService.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   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_dom_StorageActivityService_h
   8 #define mozilla_dom_StorageActivityService_h
   9
  10 #include "nsTHashMap.h"
  11 #include "nsIObserver.h"
  12 #include "nsIStorageActivityService.h"
  13 #include "nsITimer.h"
  14 #include "nsWeakReference.h"
  15
  16 namespace mozilla {
  17
  18 namespace ipc {
  19 class PrincipalInfo;
  20 }  // namespace ipc
  21
  22 namespace dom {
  23
  24 class StorageActivityService final : public nsIStorageActivityService,
  25                                      public nsIObserver,
  26                                      public nsITimerCallback,
  27                                      public nsINamed,
  28                                      public nsSupportsWeakReference {
  29  public:
  30   NS_DECL_ISUPPORTS
  31   NS_DECL_NSISTORAGEACTIVITYSERVICE
  32   NS_DECL_NSIOBSERVER
  33   NS_DECL_NSITIMERCALLBACK
  34   NS_DECL_NSINAMED
  35
  36   // Main-thread only.
  37   static void SendActivity(nsIPrincipal* aPrincipal);
  38
  39   // Thread-safe.
  40   static void SendActivity(const mozilla::ipc::PrincipalInfo& aPrincipalInfo);
  41
  42   // Thread-safe but for parent process only!
  43   static void SendActivity(const nsACString& aOrigin);
  44
  45   // Used by XPCOM. Don't use it, use SendActivity() instead.
  46   static already_AddRefed<StorageActivityService> GetOrCreate();
  47
  48  private:
  49   StorageActivityService();
  50   ~StorageActivityService();
  51
  52   void SendActivityInternal(nsIPrincipal* aPrincipal);
  53
  54   void SendActivityInternal(const nsACString& aOrigin);
  55
  56   void SendActivityToParent(nsIPrincipal* aPrincipal);
  57
  58   void MaybeStartTimer();
  59
  60   void MaybeStopTimer();
  61
  62   // Activities grouped by origin (+OriginAttributes).
  63   nsTHashMap<nsCStringHashKey, PRTime> mActivities;
  64
  65   nsCOMPtr<nsITimer> mTimer;
  66 };
  67
  68 }  // namespace dom
  69 }  // namespace mozilla
  70
  71 #endif  // mozilla_dom_StorageActivityService_h