dom/serviceworkers/ServiceWorkerProxy.h
author Dimi Lee <dlee@mozilla.com>
Sat, 08 Aug 2020 06:00:00 +0000
changeset 543991 fa0dbdf15f291e814b4854d515d7ef3e4548b7fb
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1658010 - Add null pointer check before notifying content block event r=xeonchen Differential Revision: https://phabricator.services.mozilla.com/D86421

/* -*- 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 moz_dom_ServiceWorkerProxy_h
#define moz_dom_ServiceWorkerProxy_h

#include "nsProxyRelease.h"
#include "ServiceWorkerDescriptor.h"

namespace mozilla {
namespace dom {

class ServiceWorkerCloneData;
class ServiceWorkerInfo;
class ServiceWorkerParent;

class ServiceWorkerProxy final {
  // Background thread only
  ServiceWorkerParent* mActor;

  // Written on background thread and read on main thread
  nsCOMPtr<nsISerialEventTarget> mEventTarget;

  // Main thread only
  ServiceWorkerDescriptor mDescriptor;
  nsMainThreadPtrHandle<ServiceWorkerInfo> mInfo;

  ~ServiceWorkerProxy();

  // Background thread methods
  void MaybeShutdownOnBGThread();

  void SetStateOnBGThread(ServiceWorkerState aState);

  // Main thread methods
  void InitOnMainThread();

  void MaybeShutdownOnMainThread();

  void StopListeningOnMainThread();

 public:
  explicit ServiceWorkerProxy(const ServiceWorkerDescriptor& aDescriptor);

  void Init(ServiceWorkerParent* aActor);

  void RevokeActor(ServiceWorkerParent* aActor);

  void PostMessage(RefPtr<ServiceWorkerCloneData>&& aData,
                   const ClientInfo& aClientInfo, const ClientState& aState);

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ServiceWorkerProxy);
};

}  // namespace dom
}  // namespace mozilla

#endif  // moz_dom_ServiceWorkerProxy_h