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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 <deque> | 8 #include <deque> |
9 | 9 |
10 #include "src/base/bits.h" | 10 #include "src/base/bits.h" |
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623 | 623 |
624 bool UsingEmbedderHeapTracer() { return embedder_heap_tracer(); } | 624 bool UsingEmbedderHeapTracer() { return embedder_heap_tracer(); } |
625 | 625 |
626 void TracePossibleWrapper(JSObject* js_object); | 626 void TracePossibleWrapper(JSObject* js_object); |
627 | 627 |
628 void RegisterExternallyReferencedObject(Object** object); | 628 void RegisterExternallyReferencedObject(Object** object); |
629 | 629 |
630 private: | 630 private: |
631 class EvacuateNewSpaceVisitor; | 631 class EvacuateNewSpaceVisitor; |
632 class EvacuateOldSpaceVisitor; | 632 class EvacuateOldSpaceVisitor; |
| 633 class EvacuateRecordOnlyVisitor; |
633 class EvacuateVisitorBase; | 634 class EvacuateVisitorBase; |
634 class HeapObjectVisitor; | 635 class HeapObjectVisitor; |
635 | 636 |
636 typedef std::vector<Page*> SweepingList; | 637 typedef std::vector<Page*> SweepingList; |
637 | 638 |
638 explicit MarkCompactCollector(Heap* heap); | 639 explicit MarkCompactCollector(Heap* heap); |
639 | 640 |
640 bool WillBeDeoptimized(Code* code); | 641 bool WillBeDeoptimized(Code* code); |
641 void ClearInvalidRememberedSetSlots(); | 642 void ClearInvalidRememberedSetSlots(); |
642 | 643 |
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827 | 828 |
828 // Iterates through all live objects on a page using marking information. | 829 // Iterates through all live objects on a page using marking information. |
829 // Returns whether all objects have successfully been visited. | 830 // Returns whether all objects have successfully been visited. |
830 bool VisitLiveObjects(MemoryChunk* page, HeapObjectVisitor* visitor, | 831 bool VisitLiveObjects(MemoryChunk* page, HeapObjectVisitor* visitor, |
831 IterationMode mode); | 832 IterationMode mode); |
832 | 833 |
833 void VisitLiveObjectsBody(Page* page, ObjectVisitor* visitor); | 834 void VisitLiveObjectsBody(Page* page, ObjectVisitor* visitor); |
834 | 835 |
835 void RecomputeLiveBytes(MemoryChunk* page); | 836 void RecomputeLiveBytes(MemoryChunk* page); |
836 | 837 |
837 void SweepAbortedPages(); | |
838 | |
839 void ReleaseEvacuationCandidates(); | 838 void ReleaseEvacuationCandidates(); |
840 | 839 |
841 // Starts sweeping of a space by contributing on the main thread and setting | 840 // Starts sweeping of a space by contributing on the main thread and setting |
842 // up other pages for sweeping. | 841 // up other pages for sweeping. |
843 void StartSweepSpace(PagedSpace* space); | 842 void StartSweepSpace(PagedSpace* space); |
844 | 843 |
845 #ifdef DEBUG | 844 #ifdef DEBUG |
846 friend class MarkObjectVisitor; | 845 friend class MarkObjectVisitor; |
847 static void VisitObject(HeapObject* obj); | 846 static void VisitObject(HeapObject* obj); |
848 | 847 |
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893 private: | 892 private: |
894 MarkCompactCollector* collector_; | 893 MarkCompactCollector* collector_; |
895 }; | 894 }; |
896 | 895 |
897 | 896 |
898 const char* AllocationSpaceName(AllocationSpace space); | 897 const char* AllocationSpaceName(AllocationSpace space); |
899 } // namespace internal | 898 } // namespace internal |
900 } // namespace v8 | 899 } // namespace v8 |
901 | 900 |
902 #endif // V8_HEAP_MARK_COMPACT_H_ | 901 #endif // V8_HEAP_MARK_COMPACT_H_ |
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