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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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564 typedef void (*ProcessNonLiveFunction)(HeapObject* object, Isolate* isolate); | 564 typedef void (*ProcessNonLiveFunction)(HeapObject* object, Isolate* isolate); |
565 | 565 |
566 // Pointer to member function, used in IterateLiveObjects. | 566 // Pointer to member function, used in IterateLiveObjects. |
567 typedef int (MarkCompactCollector::*LiveObjectCallback)(HeapObject* obj); | 567 typedef int (MarkCompactCollector::*LiveObjectCallback)(HeapObject* obj); |
568 | 568 |
569 // Set the global flags, it must be called before Prepare to take effect. | 569 // Set the global flags, it must be called before Prepare to take effect. |
570 inline void SetFlags(int flags); | 570 inline void SetFlags(int flags); |
571 | 571 |
572 static void Initialize(); | 572 static void Initialize(); |
573 | 573 |
| 574 void SetUp(); |
| 575 |
574 void TearDown(); | 576 void TearDown(); |
575 | 577 |
576 void CollectEvacuationCandidates(PagedSpace* space); | 578 void CollectEvacuationCandidates(PagedSpace* space); |
577 | 579 |
578 void AddEvacuationCandidate(Page* p); | 580 void AddEvacuationCandidate(Page* p); |
579 | 581 |
580 // Prepares for GC by resetting relocation info in old and map spaces and | 582 // Prepares for GC by resetting relocation info in old and map spaces and |
581 // choosing spaces to compact. | 583 // choosing spaces to compact. |
582 void Prepare(GCTracer* tracer); | 584 void Prepare(GCTracer* tracer); |
583 | 585 |
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709 void ClearMarkbits(); | 711 void ClearMarkbits(); |
710 | 712 |
711 bool abort_incremental_marking() const { return abort_incremental_marking_; } | 713 bool abort_incremental_marking() const { return abort_incremental_marking_; } |
712 | 714 |
713 bool is_compacting() const { return compacting_; } | 715 bool is_compacting() const { return compacting_; } |
714 | 716 |
715 MarkingParity marking_parity() { return marking_parity_; } | 717 MarkingParity marking_parity() { return marking_parity_; } |
716 | 718 |
717 // Concurrent and parallel sweeping support. | 719 // Concurrent and parallel sweeping support. |
718 void SweepInParallel(PagedSpace* space, | 720 void SweepInParallel(PagedSpace* space, |
719 FreeList* private_free_list, | 721 FreeList* private_free_list); |
720 FreeList* free_list); | |
721 | 722 |
722 void WaitUntilSweepingCompleted(); | 723 void WaitUntilSweepingCompleted(); |
723 | 724 |
724 intptr_t StealMemoryFromSweeperThreads(PagedSpace* space); | 725 intptr_t StealMemoryFromSweeperThreads(PagedSpace* space); |
725 | 726 |
726 bool AreSweeperThreadsActivated(); | 727 bool AreSweeperThreadsActivated(); |
727 | 728 |
728 bool IsConcurrentSweepingInProgress(); | 729 bool IsConcurrentSweepingInProgress(); |
729 | 730 |
730 void set_sequential_sweeping(bool sequential_sweeping) { | 731 void set_sequential_sweeping(bool sequential_sweeping) { |
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950 | 951 |
951 Heap* heap_; | 952 Heap* heap_; |
952 MarkingDeque marking_deque_; | 953 MarkingDeque marking_deque_; |
953 CodeFlusher* code_flusher_; | 954 CodeFlusher* code_flusher_; |
954 Object* encountered_weak_collections_; | 955 Object* encountered_weak_collections_; |
955 bool have_code_to_deoptimize_; | 956 bool have_code_to_deoptimize_; |
956 | 957 |
957 List<Page*> evacuation_candidates_; | 958 List<Page*> evacuation_candidates_; |
958 List<Code*> invalidated_code_; | 959 List<Code*> invalidated_code_; |
959 | 960 |
| 961 SmartPointer<FreeList> free_list_old_data_space_; |
| 962 SmartPointer<FreeList> free_list_old_pointer_space_; |
| 963 |
960 friend class Heap; | 964 friend class Heap; |
961 }; | 965 }; |
962 | 966 |
963 | 967 |
964 class MarkBitCellIterator BASE_EMBEDDED { | 968 class MarkBitCellIterator BASE_EMBEDDED { |
965 public: | 969 public: |
966 explicit MarkBitCellIterator(MemoryChunk* chunk) | 970 explicit MarkBitCellIterator(MemoryChunk* chunk) |
967 : chunk_(chunk) { | 971 : chunk_(chunk) { |
968 last_cell_index_ = Bitmap::IndexToCell( | 972 last_cell_index_ = Bitmap::IndexToCell( |
969 Bitmap::CellAlignIndex( | 973 Bitmap::CellAlignIndex( |
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1019 private: | 1023 private: |
1020 MarkCompactCollector* collector_; | 1024 MarkCompactCollector* collector_; |
1021 }; | 1025 }; |
1022 | 1026 |
1023 | 1027 |
1024 const char* AllocationSpaceName(AllocationSpace space); | 1028 const char* AllocationSpaceName(AllocationSpace space); |
1025 | 1029 |
1026 } } // namespace v8::internal | 1030 } } // namespace v8::internal |
1027 | 1031 |
1028 #endif // V8_MARK_COMPACT_H_ | 1032 #endif // V8_MARK_COMPACT_H_ |
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