/* -*- 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_IPCBlobInputStreamThread_h

#define mozilla_dom_IPCBlobInputStreamThread_h

#include "nsIObserverService.h"

#include "nsIEventTarget.h"

#include "nsIObserver.h"

class nsIThread;

namespace mozilla {

namespace dom {

class IPCBlobInputStreamChild;

class IPCBlobInputStreamThread final : public nsIObserver

                                     , public nsIEventTarget

{

public:

  NS_DECL_THREADSAFE_ISUPPORTS

  NS_DECL_NSIOBSERVER

  NS_DECL_NSIEVENTTARGET

  static bool

  IsOnFileEventTarget(nsIEventTarget* aEventTarget);

  static IPCBlobInputStreamThread*

  GetOrCreate();

  void

  MigrateActor(IPCBlobInputStreamChild* aActor);

  bool

  Initialize();

  void

  InitializeOnMainThread();

private:

  ~IPCBlobInputStreamThread() = default;

  void

  MigrateActorInternal(IPCBlobInputStreamChild* aActor);

  nsCOMPtr<nsIThread> mThread;

  // This is populated if MigrateActor() is called before the initialization of

  // the thread.

  nsTArray<RefPtr<IPCBlobInputStreamChild>> mPendingActors;

};

} // dom namespace

} // mozilla namespace

#endif // mozilla_dom_IPCBlobInputStreamThread_h