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Diffstat (limited to '')
-rw-r--r-- | dom/ipc/VsyncParent.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/dom/ipc/VsyncParent.h b/dom/ipc/VsyncParent.h new file mode 100644 index 0000000000..3fe8a8e5f2 --- /dev/null +++ b/dom/ipc/VsyncParent.h @@ -0,0 +1,54 @@ +/* -*- 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_ipc_VsyncParent_h +#define mozilla_dom_ipc_VsyncParent_h + +#include "mozilla/dom/PVsyncParent.h" +#include "mozilla/VsyncDispatcher.h" +#include "nsCOMPtr.h" +#include "mozilla/RefPtr.h" + +class nsIThread; + +namespace mozilla::dom { + +// 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 PVsyncParent; + + NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VsyncParent, override) + + public: + VsyncParent(); + void UpdateVsyncDispatcher(const RefPtr<VsyncDispatcher>& aVsyncDispatcher); + + private: + virtual ~VsyncParent() = default; + + void NotifyVsync(const VsyncEvent& aVsync) override; + virtual void ActorDestroy(ActorDestroyReason aActorDestroyReason) override; + + mozilla::ipc::IPCResult RecvObserve(); + mozilla::ipc::IPCResult RecvUnobserve(); + + void DispatchVsyncEvent(const VsyncEvent& aVsync); + void UpdateVsyncRate(); + + bool IsOnInitialThread(); + void AssertIsOnInitialThread(); + + bool mObservingVsync; + bool mDestroyed; + nsCOMPtr<nsIThread> mInitialThread; + RefPtr<VsyncDispatcher> mVsyncDispatcher; +}; + +} // namespace mozilla::dom + +#endif // mozilla_dom_ipc_VsyncParent_h |