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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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| 44 #ifdef DEBUG | 44 #ifdef DEBUG |
| 45 if (FLAG_gc_interval >= 0 && | 45 if (FLAG_gc_interval >= 0 && |
| 46 !disallow_allocation_failure_ && | 46 !disallow_allocation_failure_ && |
| 47 Heap::allocation_timeout_-- <= 0) { | 47 Heap::allocation_timeout_-- <= 0) { |
| 48 return Failure::RetryAfterGC(size_in_bytes, space); | 48 return Failure::RetryAfterGC(size_in_bytes, space); |
| 49 } | 49 } |
| 50 Counters::objs_since_last_full.Increment(); | 50 Counters::objs_since_last_full.Increment(); |
| 51 Counters::objs_since_last_young.Increment(); | 51 Counters::objs_since_last_young.Increment(); |
| 52 #endif | 52 #endif |
| 53 if (NEW_SPACE == space) { | 53 if (NEW_SPACE == space) { |
| 54 return new_space_->AllocateRaw(size_in_bytes); | 54 return new_space_.AllocateRaw(size_in_bytes); |
| 55 } | 55 } |
| 56 | 56 |
| 57 Object* result; | 57 Object* result; |
| 58 if (OLD_POINTER_SPACE == space) { | 58 if (OLD_POINTER_SPACE == space) { |
| 59 result = old_pointer_space_->AllocateRaw(size_in_bytes); | 59 result = old_pointer_space_->AllocateRaw(size_in_bytes); |
| 60 } else if (OLD_DATA_SPACE == space) { | 60 } else if (OLD_DATA_SPACE == space) { |
| 61 result = old_data_space_->AllocateRaw(size_in_bytes); | 61 result = old_data_space_->AllocateRaw(size_in_bytes); |
| 62 } else if (CODE_SPACE == space) { | 62 } else if (CODE_SPACE == space) { |
| 63 result = code_space_->AllocateRaw(size_in_bytes); | 63 result = code_space_->AllocateRaw(size_in_bytes); |
| 64 } else if (LO_SPACE == space) { | 64 } else if (LO_SPACE == space) { |
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| 93 Counters::objs_since_last_full.Increment(); | 93 Counters::objs_since_last_full.Increment(); |
| 94 Counters::objs_since_last_young.Increment(); | 94 Counters::objs_since_last_young.Increment(); |
| 95 #endif | 95 #endif |
| 96 Object* result = map_space_->AllocateRaw(size_in_bytes); | 96 Object* result = map_space_->AllocateRaw(size_in_bytes); |
| 97 if (result->IsFailure()) old_gen_exhausted_ = true; | 97 if (result->IsFailure()) old_gen_exhausted_ = true; |
| 98 return result; | 98 return result; |
| 99 } | 99 } |
| 100 | 100 |
| 101 | 101 |
| 102 bool Heap::InNewSpace(Object* object) { | 102 bool Heap::InNewSpace(Object* object) { |
| 103 return new_space_->Contains(object); | 103 return new_space_.Contains(object); |
| 104 } | 104 } |
| 105 | 105 |
| 106 | 106 |
| 107 bool Heap::InFromSpace(Object* object) { | 107 bool Heap::InFromSpace(Object* object) { |
| 108 return new_space_->FromSpaceContains(object); | 108 return new_space_.FromSpaceContains(object); |
| 109 } | 109 } |
| 110 | 110 |
| 111 | 111 |
| 112 bool Heap::InToSpace(Object* object) { | 112 bool Heap::InToSpace(Object* object) { |
| 113 return new_space_->ToSpaceContains(object); | 113 return new_space_.ToSpaceContains(object); |
| 114 } | 114 } |
| 115 | 115 |
| 116 | 116 |
| 117 bool Heap::ShouldBePromoted(Address old_address, int object_size) { | 117 bool Heap::ShouldBePromoted(Address old_address, int object_size) { |
| 118 // An object should be promoted if: | 118 // An object should be promoted if: |
| 119 // - the object has survived a scavenge operation or | 119 // - the object has survived a scavenge operation or |
| 120 // - to space is already 25% full. | 120 // - to space is already 25% full. |
| 121 return old_address < new_space_->age_mark() | 121 return old_address < new_space_.age_mark() |
| 122 || (new_space_->Size() + object_size) >= (new_space_->Capacity() >> 2); | 122 || (new_space_.Size() + object_size) >= (new_space_.Capacity() >> 2); |
| 123 } | 123 } |
| 124 | 124 |
| 125 | 125 |
| 126 void Heap::RecordWrite(Address address, int offset) { | 126 void Heap::RecordWrite(Address address, int offset) { |
| 127 if (new_space_->Contains(address)) return; | 127 if (new_space_.Contains(address)) return; |
| 128 ASSERT(!new_space_->FromSpaceContains(address)); | 128 ASSERT(!new_space_.FromSpaceContains(address)); |
| 129 SLOW_ASSERT(Contains(address + offset)); | 129 SLOW_ASSERT(Contains(address + offset)); |
| 130 Page::SetRSet(address, offset); | 130 Page::SetRSet(address, offset); |
| 131 } | 131 } |
| 132 | 132 |
| 133 | 133 |
| 134 OldSpace* Heap::TargetSpace(HeapObject* object) { | 134 OldSpace* Heap::TargetSpace(HeapObject* object) { |
| 135 // Heap numbers and sequential strings are promoted to old data space, all | 135 // Heap numbers and sequential strings are promoted to old data space, all |
| 136 // other object types are promoted to old pointer space. We do not use | 136 // other object types are promoted to old pointer space. We do not use |
| 137 // object->IsHeapNumber() and object->IsSeqString() because we already | 137 // object->IsHeapNumber() and object->IsSeqString() because we already |
| 138 // know that object has the heap object tag. | 138 // know that object has the heap object tag. |
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| 229 allocation_allowed_ = new_state; | 229 allocation_allowed_ = new_state; |
| 230 return old; | 230 return old; |
| 231 } | 231 } |
| 232 | 232 |
| 233 #endif | 233 #endif |
| 234 | 234 |
| 235 | 235 |
| 236 } } // namespace v8::internal | 236 } } // namespace v8::internal |
| 237 | 237 |
| 238 #endif // V8_HEAP_INL_H_ | 238 #endif // V8_HEAP_INL_H_ |
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