/* -*- 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 GFX_VR_THREAD_H

 #define GFX_VR_THREAD_H

#include "ThreadSafeRefcountingWithMainThreadDestruction.h"

#include "base/thread.h"                // for Thread

namespace mozilla {

namespace gfx {

class VRListenerThreadHolder final

{

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING_WITH_MAIN_THREAD_DESTRUCTION(VRListenerThreadHolder)

public:

  VRListenerThreadHolder();

  base::Thread* GetThread() const {

    return mThread;

  }

  static VRListenerThreadHolder* GetSingleton();

  static bool IsActive() {

    return GetSingleton() && Loop();

  }

  static void Start();

  static void Shutdown();

  static MessageLoop* Loop();

  static bool IsInVRListenerThread();

private:

  ~VRListenerThreadHolder();

  base::Thread* const mThread;

  static base::Thread* CreateThread();

  static void DestroyThread(base::Thread* aThread);

};

base::Thread* VRListenerThread();

class VRThread final

{

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRThread)

public:

  explicit VRThread(const nsCString& aName);

  void Start();

  void Shutdown();

  void SetLifeTime(uint32_t aLifeTime);

  uint32_t GetLifeTime();

  void CheckLife(TimeStamp aCheckTimestamp);

  void PostTask(already_AddRefed<Runnable> aTask);

  void PostDelayedTask(already_AddRefed<Runnable> aTask, uint32_t aTime);

  const nsCOMPtr<nsIThread> GetThread() const;

  bool IsActive();

protected:

  ~VRThread();

private:

  nsCOMPtr<nsIThread> mThread;

  TimeStamp mLastActiveTime;

  nsCString mName;

  uint32_t mLifeTime;

  Atomic<bool> mStarted;

};

} // namespace gfx

} // namespace mozilla

#endif // GFX_VR_THREAD_H