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52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_ipc_VsyncMainChild_h
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#define mozilla_dom_ipc_VsyncMainChild_h
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#include "mozilla/dom/VsyncChild.h"
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#include "nsTObserverArray.h"
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namespace mozilla {
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class VsyncObserver;
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namespace dom {
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// The PVsyncChild actor receives a vsync event from the main process and
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// delivers it to the child process. Currently this is restricted to the main
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// thread only. The actor will stay alive until the process dies or its
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// PVsyncParent actor dies.
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class VsyncMainChild final : public VsyncChild {
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NS_INLINE_DECL_REFCOUNTING(VsyncMainChild, override)
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friend class PVsyncChild;
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public:
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VsyncMainChild();
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void AddChildRefreshTimer(VsyncObserver* aVsyncObserver);
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void RemoveChildRefreshTimer(VsyncObserver* aVsyncObserver);
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TimeDuration GetVsyncRate();
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private:
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~VsyncMainChild() override;
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mozilla::ipc::IPCResult RecvNotify(const VsyncEvent& aVsync,
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const float& aVsyncRate) override;
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void ActorDestroy(ActorDestroyReason aActorDestroyReason) override;
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bool mIsShutdown;
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TimeDuration mVsyncRate;
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nsTObserverArray<VsyncObserver*> mObservers;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_ipc_VsyncChild_h
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