/* * 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 <= m_capacity); if (isPinned()) return; if (!shouldEvacuate()) { pin(); return; } if (!m_workList) m_workList = std::make_unique<CopyWorkList>(); 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