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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 // 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_SPACES_H_ | 5 #ifndef V8_HEAP_SPACES_H_ |
6 #define V8_HEAP_SPACES_H_ | 6 #define V8_HEAP_SPACES_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 | 9 |
10 #include "src/allocation.h" | 10 #include "src/allocation.h" |
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2854 // same page, so FromSpaceStart() might be above FromSpaceEnd(). | 2854 // same page, so FromSpaceStart() might be above FromSpaceEnd(). |
2855 Address FromSpacePageLow() { return from_space_.page_low(); } | 2855 Address FromSpacePageLow() { return from_space_.page_low(); } |
2856 Address FromSpacePageHigh() { return from_space_.page_high(); } | 2856 Address FromSpacePageHigh() { return from_space_.page_high(); } |
2857 Address FromSpaceStart() { return from_space_.space_start(); } | 2857 Address FromSpaceStart() { return from_space_.space_start(); } |
2858 Address FromSpaceEnd() { return from_space_.space_end(); } | 2858 Address FromSpaceEnd() { return from_space_.space_end(); } |
2859 | 2859 |
2860 // Get the extent of the active semispace's pages' memory. | 2860 // Get the extent of the active semispace's pages' memory. |
2861 Address ToSpaceStart() { return to_space_.space_start(); } | 2861 Address ToSpaceStart() { return to_space_.space_start(); } |
2862 Address ToSpaceEnd() { return to_space_.space_end(); } | 2862 Address ToSpaceEnd() { return to_space_.space_end(); } |
2863 | 2863 |
| 2864 SemiSpace* from_space() { return &from_space_; } |
| 2865 |
2864 inline bool ToSpaceContainsSlow(Address a); | 2866 inline bool ToSpaceContainsSlow(Address a); |
2865 inline bool FromSpaceContainsSlow(Address a); | 2867 inline bool FromSpaceContainsSlow(Address a); |
2866 inline bool ToSpaceContains(Object* o); | 2868 inline bool ToSpaceContains(Object* o); |
2867 inline bool FromSpaceContains(Object* o); | 2869 inline bool FromSpaceContains(Object* o); |
2868 | 2870 |
2869 // Try to switch the active semispace to a new, empty, page. | 2871 // Try to switch the active semispace to a new, empty, page. |
2870 // Returns false if this isn't possible or reasonable (i.e., there | 2872 // Returns false if this isn't possible or reasonable (i.e., there |
2871 // are no pages, or the current page is already empty), or true | 2873 // are no pages, or the current page is already empty), or true |
2872 // if successful. | 2874 // if successful. |
2873 bool AddFreshPage(); | 2875 bool AddFreshPage(); |
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3197 count = 0; | 3199 count = 0; |
3198 } | 3200 } |
3199 // Must be small, since an iteration is used for lookup. | 3201 // Must be small, since an iteration is used for lookup. |
3200 static const int kMaxComments = 64; | 3202 static const int kMaxComments = 64; |
3201 }; | 3203 }; |
3202 #endif | 3204 #endif |
3203 } // namespace internal | 3205 } // namespace internal |
3204 } // namespace v8 | 3206 } // namespace v8 |
3205 | 3207 |
3206 #endif // V8_HEAP_SPACES_H_ | 3208 #endif // V8_HEAP_SPACES_H_ |
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