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/*
* Copyright (C) 2012, 2013 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.
*/
#ifndef CopiedBlockInlines_h
#define CopiedBlockInlines_h
#include "ClassInfo.h"
#include "CopiedBlock.h"
#include "Heap.h"
#include "MarkedBlock.h"
namespace JSC {
inline bool CopiedBlock::shouldReportLiveBytes(SpinLockHolder&, JSCell* owner)
{
// We want to add to live bytes if the owner isn't part of the remembered set or
// if this block was allocated during the last cycle.
// If we always added live bytes we would double count for elements in the remembered
// set across collections.
// If we didn't always add live bytes to new blocks, we'd get too few.
return !Heap::isRemembered(owner) || !m_isOld;
}
inline void CopiedBlock::reportLiveBytes(SpinLockHolder&, JSCell* owner, CopyToken token, unsigned bytes)
{
checkConsistency();
#ifndef NDEBUG
m_liveObjects++;
#endif
m_liveBytes += bytes;
checkConsistency();
ASSERT(m_liveBytes <= CopiedBlock::blockSize);
if (isPinned())
return;
if (!shouldEvacuate()) {
pin();
return;
}
if (!m_workList)
m_workList = adoptPtr(new CopyWorkList(Heap::heap(owner)->blockAllocator()));
m_workList->append(CopyWorklistItem(owner, token));
}
inline void CopiedBlock::reportLiveBytesDuringCopying(unsigned bytes)
{
checkConsistency();
// This doesn't need to be locked because the thread that calls this function owns the current block.
m_isOld = true;
#ifndef NDEBUG
m_liveObjects++;
#endif
m_liveBytes += bytes;
checkConsistency();
ASSERT(m_liveBytes <= CopiedBlock::blockSize);
}
} // namespace JSC
#endif // CopiedBlockInlines_h
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