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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_HEAP_H_ | 5 #ifndef V8_HEAP_HEAP_H_ |
6 #define V8_HEAP_HEAP_H_ | 6 #define V8_HEAP_HEAP_H_ |
7 | 7 |
8 #include <cmath> | 8 #include <cmath> |
9 #include <map> | 9 #include <map> |
10 | 10 |
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1065 // Iterates over all roots in the heap. | 1065 // Iterates over all roots in the heap. |
1066 void IterateRoots(ObjectVisitor* v, VisitMode mode); | 1066 void IterateRoots(ObjectVisitor* v, VisitMode mode); |
1067 // Iterates over all strong roots in the heap. | 1067 // Iterates over all strong roots in the heap. |
1068 void IterateStrongRoots(ObjectVisitor* v, VisitMode mode); | 1068 void IterateStrongRoots(ObjectVisitor* v, VisitMode mode); |
1069 // Iterates over entries in the smi roots list. Only interesting to the | 1069 // Iterates over entries in the smi roots list. Only interesting to the |
1070 // serializer/deserializer, since GC does not care about smis. | 1070 // serializer/deserializer, since GC does not care about smis. |
1071 void IterateSmiRoots(ObjectVisitor* v); | 1071 void IterateSmiRoots(ObjectVisitor* v); |
1072 // Iterates over all the other roots in the heap. | 1072 // Iterates over all the other roots in the heap. |
1073 void IterateWeakRoots(ObjectVisitor* v, VisitMode mode); | 1073 void IterateWeakRoots(ObjectVisitor* v, VisitMode mode); |
1074 | 1074 |
1075 // Iterate pointers to from semispace of new space found in memory interval | 1075 // Iterate pointers of promoted objects. |
1076 // from start to end within |object|. | 1076 void IteratePromotedObject(HeapObject* target, int size, |
1077 void IteratePointersToFromSpace(HeapObject* target, int size, | 1077 ObjectSlotCallback callback); |
1078 ObjectSlotCallback callback); | |
1079 | 1078 |
1080 void IterateAndMarkPointersToFromSpace(HeapObject* object, Address start, | 1079 void IteratePromotedObjectPointers(HeapObject* object, Address start, |
1081 Address end, bool record_slots, | 1080 Address end, bool record_slots, |
1082 ObjectSlotCallback callback); | 1081 ObjectSlotCallback callback); |
1083 | 1082 |
1084 // =========================================================================== | 1083 // =========================================================================== |
1085 // Store buffer API. ========================================================= | 1084 // Store buffer API. ========================================================= |
1086 // =========================================================================== | 1085 // =========================================================================== |
1087 | 1086 |
1088 // Write barrier support for address[offset] = o. | 1087 // Write barrier support for address[offset] = o. |
1089 INLINE(void RecordWrite(Address address, int offset)); | 1088 INLINE(void RecordWrite(Address address, int offset)); |
1090 | 1089 |
1091 // Write barrier support for address[start : start + len[ = o. | 1090 // Write barrier support for address[start : start + len[ = o. |
1092 INLINE(void RecordWrites(Address address, int start, int len)); | 1091 INLINE(void RecordWrites(Address address, int start, int len)); |
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2230 // Used for testing purposes. | 2229 // Used for testing purposes. |
2231 bool force_oom_; | 2230 bool force_oom_; |
2232 | 2231 |
2233 // Classes in "heap" can be friends. | 2232 // Classes in "heap" can be friends. |
2234 friend class AlwaysAllocateScope; | 2233 friend class AlwaysAllocateScope; |
2235 friend class GCCallbacksScope; | 2234 friend class GCCallbacksScope; |
2236 friend class GCTracer; | 2235 friend class GCTracer; |
2237 friend class HeapIterator; | 2236 friend class HeapIterator; |
2238 friend class IdleScavengeObserver; | 2237 friend class IdleScavengeObserver; |
2239 friend class IncrementalMarking; | 2238 friend class IncrementalMarking; |
2240 friend class IteratePointersToFromSpaceVisitor; | 2239 friend class IteratePromotedObjectsVisitor; |
2241 friend class MarkCompactCollector; | 2240 friend class MarkCompactCollector; |
2242 friend class MarkCompactMarkingVisitor; | 2241 friend class MarkCompactMarkingVisitor; |
2243 friend class NewSpace; | 2242 friend class NewSpace; |
2244 friend class ObjectStatsVisitor; | 2243 friend class ObjectStatsVisitor; |
2245 friend class Page; | 2244 friend class Page; |
2246 friend class Scavenger; | 2245 friend class Scavenger; |
2247 friend class StoreBuffer; | 2246 friend class StoreBuffer; |
2248 | 2247 |
2249 // The allocator interface. | 2248 // The allocator interface. |
2250 friend class Factory; | 2249 friend class Factory; |
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2656 | 2655 |
2657 private: | 2656 private: |
2658 friend class NewSpace; | 2657 friend class NewSpace; |
2659 DISALLOW_COPY_AND_ASSIGN(InlineAllocationObserver); | 2658 DISALLOW_COPY_AND_ASSIGN(InlineAllocationObserver); |
2660 }; | 2659 }; |
2661 | 2660 |
2662 } // namespace internal | 2661 } // namespace internal |
2663 } // namespace v8 | 2662 } // namespace v8 |
2664 | 2663 |
2665 #endif // V8_HEAP_HEAP_H_ | 2664 #endif // V8_HEAP_HEAP_H_ |
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