layout/ipc/VsyncParent.h
author Mike Hommey <mh+mozilla@glandium.org>
Wed, 16 Jan 2019 21:44:54 +0000
changeset 514172 e0fd6ca971ae522dd9398d49f564fe3f7263112b
parent 508869 be8b9297085042370ded2cd12b210b7ebeb895a8
child 518310 cb8d1788b8028e816c8fbfdae6bd70c5c824ad25
permissions -rw-r--r--
Bug 1520377 - Replace/Inline subconfigure.{prefix_lines,execute_and_prefix}. r=nalexander Use an I/O wrapper on the configure output handler to add the "js/src>" prefix. Depends on D16643 Differential Revision: https://phabricator.services.mozilla.com/D16644

/* -*- 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_layout_ipc_VsyncParent_h
#define mozilla_layout_ipc_VsyncParent_h

#include "mozilla/layout/PVsyncParent.h"
#include "mozilla/VsyncDispatcher.h"
#include "nsCOMPtr.h"
#include "mozilla/RefPtr.h"

class nsIThread;

namespace mozilla {

namespace ipc {
class BackgroundParentImpl;
}  // namespace ipc

namespace layout {

// Use PBackground thread in the main process to send vsync notifications to
// content process. This actor will be released when its parent protocol calls
// DeallocPVsyncParent().
class VsyncParent final : public PVsyncParent, public VsyncObserver {
  friend class mozilla::ipc::BackgroundParentImpl;

 private:
  static already_AddRefed<VsyncParent> Create();

  VsyncParent();
  virtual ~VsyncParent();

  virtual bool NotifyVsync(const VsyncEvent& aVsync) override;
  virtual mozilla::ipc::IPCResult RecvRequestVsyncRate() override;

  virtual mozilla::ipc::IPCResult RecvObserve() override;
  virtual mozilla::ipc::IPCResult RecvUnobserve() override;
  virtual void ActorDestroy(ActorDestroyReason aActorDestroyReason) override;

  void DispatchVsyncEvent(const VsyncEvent& aVsync);

  bool mObservingVsync;
  bool mDestroyed;
  nsCOMPtr<nsIThread> mBackgroundThread;
  RefPtr<RefreshTimerVsyncDispatcher> mVsyncDispatcher;
};

}  // namespace layout
}  // namespace mozilla

#endif  // mozilla_layout_ipc_VsyncParent_h