/* * Copyright (C) 2019 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include "ActiveDOMObject.h" #include "EventLoop.h" namespace WebCore { class WorkerGlobalScope; class WorkletGlobalScope; class WorkerEventLoop final : public EventLoop, private ContextDestructionObserver { public: // Explicitly take WorkerGlobalScope and WorkletGlobalScope for documentation purposes. static Ref<WorkerEventLoop> create(WorkerGlobalScope&); #if ENABLE(CSS_PAINTING_API) static Ref<WorkerEventLoop> create(WorkletGlobalScope&); #endif virtual ~WorkerEventLoop(); // FIXME: This should be removed once MicrotaskQueue is integrated with EventLoopTaskGroup. void clearMicrotaskQueue(); private: explicit WorkerEventLoop(ScriptExecutionContext&); void scheduleToRun() final; bool isContextThread() const; MicrotaskQueue& microtaskQueue() final; std::unique_ptr<MicrotaskQueue> m_microtaskQueue; }; } // namespace WebCore