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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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1832 public: | 1832 public: |
1833 // Constructor. | 1833 // Constructor. |
1834 SemiSpace(Heap* heap, SemiSpaceId semispace) | 1834 SemiSpace(Heap* heap, SemiSpaceId semispace) |
1835 : Space(heap, NEW_SPACE, NOT_EXECUTABLE), | 1835 : Space(heap, NEW_SPACE, NOT_EXECUTABLE), |
1836 start_(NULL), | 1836 start_(NULL), |
1837 age_mark_(NULL), | 1837 age_mark_(NULL), |
1838 id_(semispace), | 1838 id_(semispace), |
1839 anchor_(this), | 1839 anchor_(this), |
1840 current_page_(NULL) { } | 1840 current_page_(NULL) { } |
1841 | 1841 |
1842 // Sets up the semispace using the given chunk. | 1842 // Sets up the semispace using the given chunk. After this, call Commit() |
1843 bool SetUp(Address start, int initial_capacity, int maximum_capacity); | 1843 // to make the semispace usable. |
| 1844 void SetUp(Address start, int initial_capacity, int maximum_capacity); |
1844 | 1845 |
1845 // Tear down the space. Heap memory was not allocated by the space, so it | 1846 // Tear down the space. Heap memory was not allocated by the space, so it |
1846 // is not deallocated here. | 1847 // is not deallocated here. |
1847 void TearDown(); | 1848 void TearDown(); |
1848 | 1849 |
1849 // True if the space has been set up but not torn down. | 1850 // True if the space has been set up but not torn down. |
1850 bool HasBeenSetUp() { return start_ != NULL; } | 1851 bool HasBeenSetUp() { return start_ != NULL; } |
1851 | 1852 |
1852 // Grow the semispace to the new capacity. The new capacity | 1853 // Grow the semispace to the new capacity. The new capacity |
1853 // requested must be larger than the current capacity and less than | 1854 // requested must be larger than the current capacity and less than |
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2650 } | 2651 } |
2651 // Must be small, since an iteration is used for lookup. | 2652 // Must be small, since an iteration is used for lookup. |
2652 static const int kMaxComments = 64; | 2653 static const int kMaxComments = 64; |
2653 }; | 2654 }; |
2654 #endif | 2655 #endif |
2655 | 2656 |
2656 | 2657 |
2657 } } // namespace v8::internal | 2658 } } // namespace v8::internal |
2658 | 2659 |
2659 #endif // V8_SPACES_H_ | 2660 #endif // V8_SPACES_H_ |
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