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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_HEAP_MARK_COMPACT_H_ | 5 #ifndef V8_HEAP_MARK_COMPACT_H_ |
6 #define V8_HEAP_MARK_COMPACT_H_ | 6 #define V8_HEAP_MARK_COMPACT_H_ |
7 | 7 |
8 #include "src/base/bits.h" | 8 #include "src/base/bits.h" |
9 #include "src/heap/spaces.h" | 9 #include "src/heap/spaces.h" |
10 | 10 |
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697 // Special case for processing weak references in a full collection. We need | 697 // Special case for processing weak references in a full collection. We need |
698 // to artificially keep AllocationSites alive for a time. | 698 // to artificially keep AllocationSites alive for a time. |
699 void MarkAllocationSite(AllocationSite* site); | 699 void MarkAllocationSite(AllocationSite* site); |
700 | 700 |
701 // Mark objects in implicit references groups if their parent object | 701 // Mark objects in implicit references groups if their parent object |
702 // is marked. | 702 // is marked. |
703 void MarkImplicitRefGroups(MarkObjectFunction mark_object); | 703 void MarkImplicitRefGroups(MarkObjectFunction mark_object); |
704 | 704 |
705 MarkingDeque* marking_deque() { return &marking_deque_; } | 705 MarkingDeque* marking_deque() { return &marking_deque_; } |
706 | 706 |
707 void EnsureMarkingDequeIsCommittedAndInitialize(); | 707 void EnsureMarkingDequeIsCommittedAndInitialize(size_t max_size = 4 * MB); |
708 | 708 |
709 void InitializeMarkingDeque(); | 709 void InitializeMarkingDeque(); |
710 | 710 |
711 void UncommitMarkingDeque(); | 711 void UncommitMarkingDeque(); |
712 | 712 |
713 // The following four methods can just be called after marking, when the | 713 // The following four methods can just be called after marking, when the |
714 // whole transitive closure is known. They must be called before sweeping | 714 // whole transitive closure is known. They must be called before sweeping |
715 // when mark bits are still intact. | 715 // when mark bits are still intact. |
716 bool IsSlotInBlackObject(Page* p, Address slot, HeapObject** out_object); | 716 bool IsSlotInBlackObject(Page* p, Address slot, HeapObject** out_object); |
717 bool IsSlotInBlackObjectSlow(Page* p, Address slot); | 717 bool IsSlotInBlackObjectSlow(Page* p, Address slot); |
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1005 private: | 1005 private: |
1006 MarkCompactCollector* collector_; | 1006 MarkCompactCollector* collector_; |
1007 }; | 1007 }; |
1008 | 1008 |
1009 | 1009 |
1010 const char* AllocationSpaceName(AllocationSpace space); | 1010 const char* AllocationSpaceName(AllocationSpace space); |
1011 } | 1011 } |
1012 } // namespace v8::internal | 1012 } // namespace v8::internal |
1013 | 1013 |
1014 #endif // V8_HEAP_MARK_COMPACT_H_ | 1014 #endif // V8_HEAP_MARK_COMPACT_H_ |
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