blob: 90c7740be797744e0f640e560a743d7630e490d9 [file] [log] [blame]
/*
* Copyright (C) 2014 Yoav Weiss (yoav@yoav.ws)
* Copyright (C) 2015 Akamai Technologies Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#pragma once
#include <wtf/Forward.h>
#include <wtf/Vector.h>
namespace JSC {
class VM;
} // namespace JSC
namespace WebCore {
class EventLoopTask;
class MicrotaskQueue final {
WTF_MAKE_FAST_ALLOCATED;
public:
WEBCORE_EXPORT MicrotaskQueue(JSC::VM&);
WEBCORE_EXPORT ~MicrotaskQueue();
WEBCORE_EXPORT void append(std::unique_ptr<EventLoopTask>&&);
WEBCORE_EXPORT void performMicrotaskCheckpoint();
private:
JSC::VM& vm() const { return m_vm.get(); }
bool m_performingMicrotaskCheckpoint { false };
Vector<std::unique_ptr<EventLoopTask>> m_microtaskQueue;
// For the main thread the VM lives forever. For workers it's lifetime is tied to our owning WorkerGlobalScope. Regardless, we retain the VM here to be safe.
Ref<JSC::VM> m_vm;
};
} // namespace WebCore