projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 14957cd0 | 1 | /* |
| 81345200 | 2 | * Copyright (C) 2012, 2013 Apple Inc. All rights reserved. |
| 14957cd0 A |
3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions | |
| 6 | * are met: | |
| 7 | * 1. Redistributions of source code must retain the above copyright | |
| 8 | * notice, this list of conditions and the following disclaimer. | |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 | * notice, this list of conditions and the following disclaimer in the | |
| 11 | * documentation and/or other materials provided with the distribution. | |
| 12 | * | |
| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | |
| 14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
| 15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | |
| 17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
| 23 | * THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 | */ | |
| 25 | ||
| 93a37866 A |
26 | #ifndef CopiedBlockInlines_h |
| 27 | #define CopiedBlockInlines_h | |
| 14957cd0 | 28 | |
| 81345200 | 29 | #include "ClassInfo.h" |
| 93a37866 A |
30 | #include "CopiedBlock.h" |
| 31 | #include "Heap.h" | |
| 81345200 | 32 | #include "MarkedBlock.h" |
| 14957cd0 A |
33 | |
| 34 | namespace JSC { | |
| 93a37866 | 35 | |
| 81345200 | 36 | inline bool CopiedBlock::shouldReportLiveBytes(SpinLockHolder&, JSCell* owner) |
| 14957cd0 | 37 | { |
| 81345200 A |
38 | // We want to add to live bytes if the owner isn't part of the remembered set or |
| 39 | // if this block was allocated during the last cycle. | |
| 40 | // If we always added live bytes we would double count for elements in the remembered | |
| 41 | // set across collections. | |
| 42 | // If we didn't always add live bytes to new blocks, we'd get too few. | |
| 43 | return !Heap::isRemembered(owner) || !m_isOld; | |
| 44 | } | |
| 45 | ||
| 46 | inline void CopiedBlock::reportLiveBytes(SpinLockHolder&, JSCell* owner, CopyToken token, unsigned bytes) | |
| 47 | { | |
| 48 | checkConsistency(); | |
| 49 | #ifndef NDEBUG | |
| 50 | m_liveObjects++; | |
| 93a37866 A |
51 | #endif |
| 52 | m_liveBytes += bytes; | |
| 81345200 A |
53 | checkConsistency(); |
| 54 | ASSERT(m_liveBytes <= CopiedBlock::blockSize); | |
| 55 | ||
| 56 | if (isPinned()) | |
| 57 | return; | |
| 6fe7ccc8 | 58 | |
| 93a37866 A |
59 | if (!shouldEvacuate()) { |
| 60 | pin(); | |
| 61 | return; | |
| 62 | } | |
| 6fe7ccc8 | 63 | |
| 93a37866 A |
64 | if (!m_workList) |
| 65 | m_workList = adoptPtr(new CopyWorkList(Heap::heap(owner)->blockAllocator())); | |
| 14957cd0 | 66 | |
| 81345200 A |
67 | m_workList->append(CopyWorklistItem(owner, token)); |
| 68 | } | |
| 69 | ||
| 70 | inline void CopiedBlock::reportLiveBytesDuringCopying(unsigned bytes) | |
| 71 | { | |
| 72 | checkConsistency(); | |
| 73 | // This doesn't need to be locked because the thread that calls this function owns the current block. | |
| 74 | m_isOld = true; | |
| 75 | #ifndef NDEBUG | |
| 76 | m_liveObjects++; | |
| 77 | #endif | |
| 78 | m_liveBytes += bytes; | |
| 79 | checkConsistency(); | |
| 80 | ASSERT(m_liveBytes <= CopiedBlock::blockSize); | |
| 14957cd0 A |
81 | } |
| 82 | ||
| 83 | } // namespace JSC | |
| 93a37866 A |
84 | |
| 85 | #endif // CopiedBlockInlines_h |