зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
2.0 KiB
C++
68 строки
2.0 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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#include "VsyncWorkerChild.h"
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#include "mozilla/dom/WorkerPrivate.h"
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#include "mozilla/dom/WorkerRef.h"
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#include "mozilla/dom/WorkerScope.h"
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namespace mozilla::dom {
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VsyncWorkerChild::VsyncWorkerChild() = default;
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VsyncWorkerChild::~VsyncWorkerChild() = default;
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bool VsyncWorkerChild::Initialize(WorkerPrivate* aWorkerPrivate) {
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MOZ_ASSERT(aWorkerPrivate);
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MOZ_ASSERT(!mWorkerRef);
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mWorkerRef =
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IPCWorkerRef::Create(aWorkerPrivate, "VsyncWorkerChild",
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[self = RefPtr{this}]() { self->Destroy(); });
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return !!mWorkerRef;
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}
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void VsyncWorkerChild::Destroy() {
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MOZ_ASSERT_IF(!CanSend(), !mWorkerRef);
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MOZ_ASSERT_IF(!CanSend(), !mObserving);
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Send__delete__(this);
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MOZ_ASSERT(!mWorkerRef);
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MOZ_ASSERT(!mObserving);
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}
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void VsyncWorkerChild::TryObserve() {
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if (CanSend() && !mObserving) {
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mObserving = SendObserve();
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}
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}
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void VsyncWorkerChild::TryUnobserve() {
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if (CanSend() && mObserving) {
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mObserving = !SendUnobserve();
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}
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}
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mozilla::ipc::IPCResult VsyncWorkerChild::RecvNotify(const VsyncEvent& aVsync,
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const float& aVsyncRate) {
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// For MOZ_CAN_RUN_SCRIPT_BOUNDARY purposes: We know IPDL is explicitly
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// keeping our actor alive until it is done processing the messages. We know
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// that the WorkerGlobalScope callee is responsible keeping itself alive
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// during the OnVsync callback.
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WorkerPrivate* workerPrivate = mWorkerRef->Private();
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WorkerGlobalScope* scope = workerPrivate->GlobalScope();
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if (scope) {
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scope->OnVsync(aVsync);
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}
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return IPC_OK();
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}
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void VsyncWorkerChild::ActorDestroy(ActorDestroyReason aActorDestroyReason) {
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mWorkerRef = nullptr;
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mObserving = false;
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}
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} // namespace mozilla::dom
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