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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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677 } | 677 } |
678 | 678 |
679 static void TracePathToObject(); | 679 static void TracePathToObject(); |
680 static void TracePathToGlobal(); | 680 static void TracePathToGlobal(); |
681 #endif | 681 #endif |
682 | 682 |
683 // Callback function pased to Heap::Iterate etc. Copies an object if | 683 // Callback function pased to Heap::Iterate etc. Copies an object if |
684 // necessary, the object might be promoted to an old space. The caller must | 684 // necessary, the object might be promoted to an old space. The caller must |
685 // ensure the precondition that the object is (a) a heap object and (b) in | 685 // ensure the precondition that the object is (a) a heap object and (b) in |
686 // the heap's from space. | 686 // the heap's from space. |
687 static void CopyObject(HeapObject** p); | 687 static void ScavengePointer(HeapObject** p); |
| 688 static inline void ScavengeObject(HeapObject** p, HeapObject* object); |
688 | 689 |
689 // Clear a range of remembered set addresses corresponding to the object | 690 // Clear a range of remembered set addresses corresponding to the object |
690 // area address 'start' with size 'size_in_bytes', eg, when adding blocks | 691 // area address 'start' with size 'size_in_bytes', eg, when adding blocks |
691 // to the free list. | 692 // to the free list. |
692 static void ClearRSetRange(Address start, int size_in_bytes); | 693 static void ClearRSetRange(Address start, int size_in_bytes); |
693 | 694 |
694 // Rebuild remembered set in old and map spaces. | 695 // Rebuild remembered set in old and map spaces. |
695 static void RebuildRSets(); | 696 static void RebuildRSets(); |
696 | 697 |
697 // | 698 // |
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874 | 875 |
875 // Update an old object's remembered set | 876 // Update an old object's remembered set |
876 static int UpdateRSet(HeapObject* obj); | 877 static int UpdateRSet(HeapObject* obj); |
877 | 878 |
878 // Rebuild remembered set in an old space. | 879 // Rebuild remembered set in an old space. |
879 static void RebuildRSets(PagedSpace* space); | 880 static void RebuildRSets(PagedSpace* space); |
880 | 881 |
881 // Rebuild remembered set in the large object space. | 882 // Rebuild remembered set in the large object space. |
882 static void RebuildRSets(LargeObjectSpace* space); | 883 static void RebuildRSets(LargeObjectSpace* space); |
883 | 884 |
| 885 // Slow part of scavenge object. |
| 886 static void ScavengeObjectSlow(HeapObject** p, HeapObject* object); |
| 887 |
884 static const int kInitialSymbolTableSize = 2048; | 888 static const int kInitialSymbolTableSize = 2048; |
885 static const int kInitialEvalCacheSize = 64; | 889 static const int kInitialEvalCacheSize = 64; |
886 | 890 |
887 friend class Factory; | 891 friend class Factory; |
888 friend class DisallowAllocationFailure; | 892 friend class DisallowAllocationFailure; |
889 }; | 893 }; |
890 | 894 |
891 | 895 |
892 #ifdef DEBUG | 896 #ifdef DEBUG |
893 // Visitor class to verify interior pointers that do not have remembered set | 897 // Visitor class to verify interior pointers that do not have remembered set |
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1180 int marked_count_; | 1184 int marked_count_; |
1181 | 1185 |
1182 // The count from the end of the previous full GC. Will be zero if there | 1186 // The count from the end of the previous full GC. Will be zero if there |
1183 // was no previous full GC. | 1187 // was no previous full GC. |
1184 int previous_marked_count_; | 1188 int previous_marked_count_; |
1185 }; | 1189 }; |
1186 | 1190 |
1187 } } // namespace v8::internal | 1191 } } // namespace v8::internal |
1188 | 1192 |
1189 #endif // V8_HEAP_H_ | 1193 #endif // V8_HEAP_H_ |
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