80 lines
3.1 KiB
C++
80 lines
3.1 KiB
C++
/*
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* Copyright (C) 2017-2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "DOMGCOutputConstraint.h"
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#include "WebCoreJSClientData.h"
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#include <JavaScriptCore/BlockDirectoryInlines.h>
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#include <JavaScriptCore/HeapInlines.h>
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#include <JavaScriptCore/MarkedBlockInlines.h>
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#include <JavaScriptCore/SubspaceInlines.h>
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#include <JavaScriptCore/VM.h>
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namespace WebCore {
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using namespace JSC;
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DOMGCOutputConstraint::DOMGCOutputConstraint(VM& vm, JSVMClientData& clientData)
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: MarkingConstraint("Domo", "DOM Output", ConstraintVolatility::SeldomGreyed, ConstraintConcurrency::Concurrent, ConstraintParallelism::Parallel)
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, m_vm(vm)
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, m_clientData(clientData)
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, m_lastExecutionVersion(vm.heap.mutatorExecutionVersion())
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{
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}
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DOMGCOutputConstraint::~DOMGCOutputConstraint()
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{
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}
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template<typename Visitor>
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void DOMGCOutputConstraint::executeImplImpl(Visitor& visitor)
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{
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Heap& heap = m_vm.heap;
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if (heap.mutatorExecutionVersion() == m_lastExecutionVersion)
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return;
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m_lastExecutionVersion = heap.mutatorExecutionVersion();
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m_clientData.forEachOutputConstraintSpace(
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[&] (Subspace& subspace) {
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auto func = [] (Visitor& visitor, HeapCell* heapCell, HeapCell::Kind) {
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SetRootMarkReasonScope rootScope(visitor, RootMarkReason::DOMGCOutput);
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JSCell* cell = static_cast<JSCell*>(heapCell);
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cell->methodTable(visitor.vm())->visitOutputConstraints(cell, visitor);
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};
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RefPtr<SharedTask<void(Visitor&)>> task = subspace.template forEachMarkedCellInParallel<Visitor>(func);
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visitor.addParallelConstraintTask(task);
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});
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}
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void DOMGCOutputConstraint::executeImpl(AbstractSlotVisitor& visitor) { executeImplImpl(visitor); }
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void DOMGCOutputConstraint::executeImpl(SlotVisitor& visitor) { executeImplImpl(visitor); }
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} // namespace WebCore
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