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