SharedWorkerParent.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_dom_SharedWorkerParent_h

#define mozilla_dom_dom_SharedWorkerParent_h

#include "mozilla/dom/PSharedWorkerParent.h"

#include "mozilla/dom/quota/CheckedUnsafePtr.h"

#include "mozilla/ipc/BackgroundUtils.h"

#include "nsISupportsImpl.h"

namespace mozilla::dom {

class MessagePortIdentifier;

class RemoteWorkerData;

class SharedWorkerManagerWrapper;

/**

 * PBackground actor that relays life-cycle events (freeze/thaw, suspend/resume,

 * close) to the PBackground SharedWorkerManager and relays error/termination

 * back to the child.

*/

class SharedWorkerParent final

    : public mozilla::dom::PSharedWorkerParent,

      public SupportsCheckedUnsafePtr<CheckIf<DiagnosticAssertEnabled>> {

 public:

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(SharedWorkerParent)

  SharedWorkerParent();

  void Initialize(const RemoteWorkerData& aData, uint64_t aWindowID,

                  const MessagePortIdentifier& aPortIdentifier);

  void ManagerCreated(

      already_AddRefed<SharedWorkerManagerWrapper> aWorkerManagerWrapper);

  void ErrorPropagation(nsresult aError);

  mozilla::ipc::IPCResult RecvClose();

  mozilla::ipc::IPCResult RecvSuspend();

  mozilla::ipc::IPCResult RecvResume();

  mozilla::ipc::IPCResult RecvFreeze();

  mozilla::ipc::IPCResult RecvThaw();

  bool IsSuspended() const { return mSuspended; }

  bool IsFrozen() const { return mFrozen; }

  uint64_t WindowID() const { return mWindowID; }

 private:

  ~SharedWorkerParent();

  void ActorDestroy(IProtocol::ActorDestroyReason aReason) override;

  nsCOMPtr<nsIEventTarget> mBackgroundEventTarget;

  RefPtr<SharedWorkerManagerWrapper> mWorkerManagerWrapper;

  enum {

    eInit,

    ePending,

    eActive,

    eClosed,

  } mStatus;

  uint64_t mWindowID;

  bool mSuspended;

  bool mFrozen;

};

}  // namespace mozilla::dom

#endif  // mozilla_dom_dom_SharedWorkerParent_h