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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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663 MarkingDeque* marking_deque() { return &marking_deque_; } | 663 MarkingDeque* marking_deque() { return &marking_deque_; } |
664 | 664 |
665 void EnsureMarkingDequeIsCommittedAndInitialize(); | 665 void EnsureMarkingDequeIsCommittedAndInitialize(); |
666 | 666 |
667 void InitializeMarkingDeque(); | 667 void InitializeMarkingDeque(); |
668 | 668 |
669 void UncommitMarkingDeque(); | 669 void UncommitMarkingDeque(); |
670 | 670 |
671 void OverApproximateWeakClosure(); | 671 void OverApproximateWeakClosure(); |
672 | 672 |
| 673 // The following four methods can just be called after marking, when the |
| 674 // whole transitive closure is known. They must be called before sweeping |
| 675 // when mark bits are still intact. |
| 676 bool IsSlotInBlackObject(Page* p, Address slot); |
| 677 bool IsSlotInBlackObjectSlow(Page* p, Address slot); |
| 678 bool IsSlotInLiveObject(HeapObject** address, HeapObject* object); |
| 679 void VerifyIsSlotInLiveObject(HeapObject** address, HeapObject* object); |
| 680 |
673 private: | 681 private: |
674 class SweeperTask; | 682 class SweeperTask; |
675 | 683 |
676 explicit MarkCompactCollector(Heap* heap); | 684 explicit MarkCompactCollector(Heap* heap); |
677 ~MarkCompactCollector(); | 685 ~MarkCompactCollector(); |
678 | 686 |
679 bool MarkInvalidatedCode(); | 687 bool MarkInvalidatedCode(); |
680 bool WillBeDeoptimized(Code* code); | 688 bool WillBeDeoptimized(Code* code); |
681 void RemoveDeadInvalidatedCode(); | 689 void RemoveDeadInvalidatedCode(); |
682 void ProcessInvalidatedCode(ObjectVisitor* visitor); | 690 void ProcessInvalidatedCode(ObjectVisitor* visitor); |
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958 private: | 966 private: |
959 MarkCompactCollector* collector_; | 967 MarkCompactCollector* collector_; |
960 }; | 968 }; |
961 | 969 |
962 | 970 |
963 const char* AllocationSpaceName(AllocationSpace space); | 971 const char* AllocationSpaceName(AllocationSpace space); |
964 } | 972 } |
965 } // namespace v8::internal | 973 } // namespace v8::internal |
966 | 974 |
967 #endif // V8_HEAP_MARK_COMPACT_H_ | 975 #endif // V8_HEAP_MARK_COMPACT_H_ |
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