projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 81345200 A |
1 | /* |
| 2 | * Copyright (C) 2013 Apple Inc. All rights reserved. | |
| 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. ``AS IS'' AND ANY | |
| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef GCIncomingRefCountedSetInlines_h | |
| 27 | #define GCIncomingRefCountedSetInlines_h | |
| 28 | ||
| 29 | #include "GCIncomingRefCountedSet.h" | |
| 30 | #include "VM.h" | |
| 31 | ||
| 32 | namespace JSC { | |
| 33 | ||
| 34 | template<typename T> | |
| 35 | GCIncomingRefCountedSet<T>::GCIncomingRefCountedSet() | |
| 36 | : m_bytes(0) | |
| 37 | { | |
| 38 | } | |
| 39 | ||
| 40 | template<typename T> | |
| 41 | GCIncomingRefCountedSet<T>::~GCIncomingRefCountedSet() | |
| 42 | { | |
| 43 | for (size_t i = m_vector.size(); i--;) | |
| 44 | m_vector[i]->filterIncomingReferences(removeAll); | |
| 45 | } | |
| 46 | ||
| 47 | template<typename T> | |
| 48 | bool GCIncomingRefCountedSet<T>::addReference(JSCell* cell, T* object) | |
| 49 | { | |
| 50 | if (!object->addIncomingReference(cell)) { | |
| 51 | ASSERT(object->isDeferred()); | |
| 52 | ASSERT(object->numberOfIncomingReferences()); | |
| 53 | return false; | |
| 54 | } | |
| 55 | m_vector.append(object); | |
| 56 | m_bytes += object->gcSizeEstimateInBytes(); | |
| 57 | ASSERT(object->isDeferred()); | |
| 58 | ASSERT(object->numberOfIncomingReferences()); | |
| 59 | return true; | |
| 60 | } | |
| 61 | ||
| 62 | template<typename T> | |
| 63 | void GCIncomingRefCountedSet<T>::sweep() | |
| 64 | { | |
| 65 | for (size_t i = 0; i < m_vector.size(); ++i) { | |
| 66 | T* object = m_vector[i]; | |
| 67 | size_t size = object->gcSizeEstimateInBytes(); | |
| 68 | ASSERT(object->isDeferred()); | |
| 69 | ASSERT(object->numberOfIncomingReferences()); | |
| 70 | if (!object->filterIncomingReferences(removeDead)) | |
| 71 | continue; | |
| 72 | m_bytes -= size; | |
| 73 | m_vector[i--] = m_vector.last(); | |
| 74 | m_vector.removeLast(); | |
| 75 | } | |
| 76 | } | |
| 77 | ||
| 78 | template<typename T> | |
| 79 | bool GCIncomingRefCountedSet<T>::removeAll(JSCell*) | |
| 80 | { | |
| 81 | return false; | |
| 82 | } | |
| 83 | ||
| 84 | template<typename T> | |
| 85 | bool GCIncomingRefCountedSet<T>::removeDead(JSCell* cell) | |
| 86 | { | |
| 87 | return Heap::isMarked(cell); | |
| 88 | } | |
| 89 | ||
| 90 | } // namespace JSC | |
| 91 | ||
| 92 | #endif // GCIncomingRefCountedSetInlines_h |