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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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138 } | 138 } |
139 | 139 |
140 | 140 |
141 bool Page::IsRSetSet(Address address, int offset) { | 141 bool Page::IsRSetSet(Address address, int offset) { |
142 uint32_t bitmask = 0; | 142 uint32_t bitmask = 0; |
143 Address rset_address = ComputeRSetBitPosition(address, offset, &bitmask); | 143 Address rset_address = ComputeRSetBitPosition(address, offset, &bitmask); |
144 return (Memory::uint32_at(rset_address) & bitmask) != 0; | 144 return (Memory::uint32_at(rset_address) & bitmask) != 0; |
145 } | 145 } |
146 | 146 |
147 | 147 |
| 148 bool Page::GetPageFlag(PageFlag flag) { |
| 149 return (flags & flag) != 0; |
| 150 } |
| 151 |
| 152 |
| 153 void Page::SetPageFlag(PageFlag flag, bool value) { |
| 154 if (value) { |
| 155 flags |= flag; |
| 156 } else { |
| 157 flags &= ~flag; |
| 158 } |
| 159 } |
| 160 |
| 161 |
| 162 bool Page::WasInUseBeforeMC() { |
| 163 return GetPageFlag(WAS_IN_USE_BEFORE_MC); |
| 164 } |
| 165 |
| 166 |
| 167 void Page::SetWasInUseBeforeMC(bool was_in_use) { |
| 168 SetPageFlag(WAS_IN_USE_BEFORE_MC, was_in_use); |
| 169 } |
| 170 |
| 171 |
| 172 bool Page::IsLargeObjectPage() { |
| 173 return !GetPageFlag(IS_NORMAL_PAGE); |
| 174 } |
| 175 |
| 176 |
| 177 void Page::SetIsLargeObjectPage(bool is_large_object_page) { |
| 178 SetPageFlag(IS_NORMAL_PAGE, !is_large_object_page); |
| 179 } |
| 180 |
| 181 |
148 // ----------------------------------------------------------------------------- | 182 // ----------------------------------------------------------------------------- |
149 // MemoryAllocator | 183 // MemoryAllocator |
150 | 184 |
151 bool MemoryAllocator::IsValidChunk(int chunk_id) { | 185 bool MemoryAllocator::IsValidChunk(int chunk_id) { |
152 if (!IsValidChunkId(chunk_id)) return false; | 186 if (!IsValidChunkId(chunk_id)) return false; |
153 | 187 |
154 ChunkInfo& c = chunks_[chunk_id]; | 188 ChunkInfo& c = chunks_[chunk_id]; |
155 return (c.address() != NULL) && (c.size() != 0) && (c.owner() != NULL); | 189 return (c.address() != NULL) && (c.size() != 0) && (c.owner() != NULL); |
156 } | 190 } |
157 | 191 |
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337 | 371 |
338 bool FreeListNode::IsFreeListNode(HeapObject* object) { | 372 bool FreeListNode::IsFreeListNode(HeapObject* object) { |
339 return object->map() == Heap::raw_unchecked_byte_array_map() | 373 return object->map() == Heap::raw_unchecked_byte_array_map() |
340 || object->map() == Heap::raw_unchecked_one_pointer_filler_map() | 374 || object->map() == Heap::raw_unchecked_one_pointer_filler_map() |
341 || object->map() == Heap::raw_unchecked_two_pointer_filler_map(); | 375 || object->map() == Heap::raw_unchecked_two_pointer_filler_map(); |
342 } | 376 } |
343 | 377 |
344 } } // namespace v8::internal | 378 } } // namespace v8::internal |
345 | 379 |
346 #endif // V8_SPACES_INL_H_ | 380 #endif // V8_SPACES_INL_H_ |
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