Source/JavaScriptCore/heap/CopyVisitor.cpp

/*
 * Copyright (C) 2012, 2015 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
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 * 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
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#include "config.h"
#include "CopyVisitor.h"

#include "CopiedSpaceInlines.h"
#include "CopyVisitorInlines.h"

namespace JSC {

CopyVisitor::CopyVisitor(Heap& heap)
    : m_heap(heap)
{
    ASSERT(!m_copiedAllocator.isValid());
    CopiedBlock* block = nullptr;
    m_heap.m_storageSpace.doneFillingBlock(nullptr, &block);
    m_copiedAllocator.setCurrentBlock(block);
}

CopyVisitor::~CopyVisitor()
{
    if (m_copiedAllocator.isValid())
        m_heap.m_storageSpace.doneFillingBlock(m_copiedAllocator.resetCurrentBlock(), nullptr);
    
    WTF::releaseFastMallocFreeMemoryForThisThread();
}

} // namespace JSC