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Side by Side Diff: src/mark-compact.h

Issue 181453002: Reset trunk to 3.24.35.4 (Closed) Base URL: https://v8.googlecode.com/svn/trunk
Patch Set: Created 6 years, 9 months ago
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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
749 explicit MarkCompactCollector(Heap* heap); 747 explicit MarkCompactCollector(Heap* heap);
750 ~MarkCompactCollector(); 748 ~MarkCompactCollector();
751 749
752 bool MarkInvalidatedCode(); 750 bool MarkInvalidatedCode();
753 bool WillBeDeoptimized(Code* code); 751 bool WillBeDeoptimized(Code* code);
754 void RemoveDeadInvalidatedCode(); 752 void RemoveDeadInvalidatedCode();
755 void ProcessInvalidatedCode(ObjectVisitor* visitor); 753 void ProcessInvalidatedCode(ObjectVisitor* visitor);
756 754
757 void UnlinkEvacuationCandidates(); 755 void UnlinkEvacuationCandidates();
758 void ReleaseEvacuationCandidates(); 756 void ReleaseEvacuationCandidates();
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786 784
787 // True if we are collecting slots to perform evacuation from evacuation 785 // True if we are collecting slots to perform evacuation from evacuation
788 // candidates. 786 // candidates.
789 bool compacting_; 787 bool compacting_;
790 788
791 bool was_marked_incrementally_; 789 bool was_marked_incrementally_;
792 790
793 // True if concurrent or parallel sweeping is currently in progress. 791 // True if concurrent or parallel sweeping is currently in progress.
794 bool sweeping_pending_; 792 bool sweeping_pending_;
795 793
796 Semaphore pending_sweeper_jobs_semaphore_;
797
798 bool sequential_sweeping_; 794 bool sequential_sweeping_;
799 795
800 // A pointer to the current stack-allocated GC tracer object during a full 796 // A pointer to the current stack-allocated GC tracer object during a full
801 // collection (NULL before and after). 797 // collection (NULL before and after).
802 GCTracer* tracer_; 798 GCTracer* tracer_;
803 799
804 SlotsBufferAllocator slots_buffer_allocator_; 800 SlotsBufferAllocator slots_buffer_allocator_;
805 801
806 SlotsBuffer* migration_slots_buffer_; 802 SlotsBuffer* migration_slots_buffer_;
807 803
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937 void EvacuateNewSpace(); 933 void EvacuateNewSpace();
938 934
939 void EvacuateLiveObjectsFromPage(Page* p); 935 void EvacuateLiveObjectsFromPage(Page* p);
940 936
941 void EvacuatePages(); 937 void EvacuatePages();
942 938
943 void EvacuateNewSpaceAndCandidates(); 939 void EvacuateNewSpaceAndCandidates();
944 940
945 void SweepSpace(PagedSpace* space, SweeperType sweeper); 941 void SweepSpace(PagedSpace* space, SweeperType sweeper);
946 942
947 // Finalizes the parallel sweeping phase. Marks all the pages that were
948 // swept in parallel.
949 void ParallelSweepSpacesComplete();
950
951 void ParallelSweepSpaceComplete(PagedSpace* space);
952
953 #ifdef DEBUG 943 #ifdef DEBUG
954 friend class MarkObjectVisitor; 944 friend class MarkObjectVisitor;
955 static void VisitObject(HeapObject* obj); 945 static void VisitObject(HeapObject* obj);
956 946
957 friend class UnmarkObjectVisitor; 947 friend class UnmarkObjectVisitor;
958 static void UnmarkObject(HeapObject* obj); 948 static void UnmarkObject(HeapObject* obj);
959 #endif 949 #endif
960 950
961 Heap* heap_; 951 Heap* heap_;
962 MarkingDeque marking_deque_; 952 MarkingDeque marking_deque_;
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1032 private: 1022 private:
1033 MarkCompactCollector* collector_; 1023 MarkCompactCollector* collector_;
1034 }; 1024 };
1035 1025
1036 1026
1037 const char* AllocationSpaceName(AllocationSpace space); 1027 const char* AllocationSpaceName(AllocationSpace space);
1038 1028
1039 } } // namespace v8::internal 1029 } } // namespace v8::internal
1040 1030
1041 #endif // V8_MARK_COMPACT_H_ 1031 #endif // V8_MARK_COMPACT_H_
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