QuotaManagerService.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this file,

 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_quota_QuotaManagerService_h

#define mozilla_dom_quota_QuotaManagerService_h

#include <cstdint>

#include "ErrorList.h"

#include "mozilla/AlreadyAddRefed.h"

#include "mozilla/HalBatteryInformation.h"

#include "mozilla/dom/ipc/IdType.h"

#include "nsIObserver.h"

#include "nsIQuotaManagerService.h"

#include "nsISupports.h"

#define QUOTAMANAGER_SERVICE_CONTRACTID \

  "@mozilla.org/dom/quota-manager-service;1"

class nsIPrincipal;

class nsIQuotaRequest;

class nsIQuotaUsageCallback;

class nsIQuotaUsageRequest;

namespace mozilla {

namespace ipc {

class PBackgroundChild;

}  // namespace ipc

namespace hal {

class BatteryInformation;

namespace dom::quota {

class QuotaChild;

class QuotaManager;

class QuotaManagerService final : public nsIQuotaManagerService,

                                  public nsIObserver,

                                  public hal::BatteryObserver {

  using PBackgroundChild = mozilla::ipc::PBackgroundChild;

  class BackgroundCreateCallback;

  class PendingRequestInfo;

  class UsageRequestInfo;

  class RequestInfo;

  class IdleMaintenanceInfo;

  QuotaChild* mBackgroundActor;

  bool mBackgroundActorFailed;

  bool mIdleObserverRegistered;

 public:

  // Returns a non-owning reference.

  static QuotaManagerService* GetOrCreate();

  // Returns a non-owning reference.

  static QuotaManagerService* Get();

  // No one should call this but the factory.

  static already_AddRefed<QuotaManagerService> FactoryCreate();

  void ClearBackgroundActor();

  // Called when a process is being shot down. Aborts any running operations

  // for the given process.

  void AbortOperationsForProcess(ContentParentId aContentParentId);

 private:

  QuotaManagerService();

  ~QuotaManagerService();

  nsresult Init();

  void Destroy();

  nsresult EnsureBackgroundActor();

  nsresult InitiateRequest(PendingRequestInfo& aInfo);

  void PerformIdleMaintenance();

  void RemoveIdleObserver();

  NS_DECL_ISUPPORTS

  NS_DECL_NSIQUOTAMANAGERSERVICE

  NS_DECL_NSIOBSERVER

  // BatteryObserver override

  void Notify(const hal::BatteryInformation& aBatteryInfo) override;

};

}  // namespace dom::quota

}  // namespace mozilla

#endif /* mozilla_dom_quota_QuotaManagerService_h */