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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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737 | 737 |
738 // Mark the global table which maps weak objects to dependent code without | 738 // Mark the global table which maps weak objects to dependent code without |
739 // marking its contents. | 739 // marking its contents. |
740 void MarkWeakObjectToCodeTable(); | 740 void MarkWeakObjectToCodeTable(); |
741 | 741 |
742 // Special case for processing weak references in a full collection. We need | 742 // Special case for processing weak references in a full collection. We need |
743 // to artifically keep AllocationSites alive for a time. | 743 // to artifically keep AllocationSites alive for a time. |
744 void MarkAllocationSite(AllocationSite* site); | 744 void MarkAllocationSite(AllocationSite* site); |
745 | 745 |
746 private: | 746 private: |
| 747 class SweeperTask; |
| 748 |
747 explicit MarkCompactCollector(Heap* heap); | 749 explicit MarkCompactCollector(Heap* heap); |
748 ~MarkCompactCollector(); | 750 ~MarkCompactCollector(); |
749 | 751 |
750 bool MarkInvalidatedCode(); | 752 bool MarkInvalidatedCode(); |
751 bool WillBeDeoptimized(Code* code); | 753 bool WillBeDeoptimized(Code* code); |
752 void RemoveDeadInvalidatedCode(); | 754 void RemoveDeadInvalidatedCode(); |
753 void ProcessInvalidatedCode(ObjectVisitor* visitor); | 755 void ProcessInvalidatedCode(ObjectVisitor* visitor); |
754 | 756 |
755 void UnlinkEvacuationCandidates(); | 757 void UnlinkEvacuationCandidates(); |
756 void ReleaseEvacuationCandidates(); | 758 void ReleaseEvacuationCandidates(); |
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784 | 786 |
785 // True if we are collecting slots to perform evacuation from evacuation | 787 // True if we are collecting slots to perform evacuation from evacuation |
786 // candidates. | 788 // candidates. |
787 bool compacting_; | 789 bool compacting_; |
788 | 790 |
789 bool was_marked_incrementally_; | 791 bool was_marked_incrementally_; |
790 | 792 |
791 // True if concurrent or parallel sweeping is currently in progress. | 793 // True if concurrent or parallel sweeping is currently in progress. |
792 bool sweeping_pending_; | 794 bool sweeping_pending_; |
793 | 795 |
| 796 Semaphore pending_sweeper_jobs_semaphore_; |
| 797 |
794 bool sequential_sweeping_; | 798 bool sequential_sweeping_; |
795 | 799 |
796 // A pointer to the current stack-allocated GC tracer object during a full | 800 // A pointer to the current stack-allocated GC tracer object during a full |
797 // collection (NULL before and after). | 801 // collection (NULL before and after). |
798 GCTracer* tracer_; | 802 GCTracer* tracer_; |
799 | 803 |
800 SlotsBufferAllocator slots_buffer_allocator_; | 804 SlotsBufferAllocator slots_buffer_allocator_; |
801 | 805 |
802 SlotsBuffer* migration_slots_buffer_; | 806 SlotsBuffer* migration_slots_buffer_; |
803 | 807 |
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1022 private: | 1026 private: |
1023 MarkCompactCollector* collector_; | 1027 MarkCompactCollector* collector_; |
1024 }; | 1028 }; |
1025 | 1029 |
1026 | 1030 |
1027 const char* AllocationSpaceName(AllocationSpace space); | 1031 const char* AllocationSpaceName(AllocationSpace space); |
1028 | 1032 |
1029 } } // namespace v8::internal | 1033 } } // namespace v8::internal |
1030 | 1034 |
1031 #endif // V8_MARK_COMPACT_H_ | 1035 #endif // V8_MARK_COMPACT_H_ |
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