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20 * or visit www.oracle.com if you need additional information or have any |
20 * or visit www.oracle.com if you need additional information or have any |
21 * questions. |
21 * questions. |
22 * |
22 * |
23 */ |
23 */ |
24 |
24 |
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25 #ifndef SHARE_VM_MEMORY_BLOCKOFFSETTABLE_HPP |
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26 #define SHARE_VM_MEMORY_BLOCKOFFSETTABLE_HPP |
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27 |
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28 #include "memory/memRegion.hpp" |
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29 #include "runtime/virtualspace.hpp" |
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30 #include "utilities/globalDefinitions.hpp" |
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31 |
25 // The CollectedHeap type requires subtypes to implement a method |
32 // The CollectedHeap type requires subtypes to implement a method |
26 // "block_start". For some subtypes, notably generational |
33 // "block_start". For some subtypes, notably generational |
27 // systems using card-table-based write barriers, the efficiency of this |
34 // systems using card-table-based write barriers, the efficiency of this |
28 // operation may be important. Implementations of the "BlockOffsetArray" |
35 // operation may be important. Implementations of the "BlockOffsetArray" |
29 // class may be useful in providing such efficient implementations. |
36 // class may be useful in providing such efficient implementations. |
559 void serialize(SerializeOopClosure* soc); |
566 void serialize(SerializeOopClosure* soc); |
560 |
567 |
561 // Debugging support |
568 // Debugging support |
562 virtual size_t last_active_index() const; |
569 virtual size_t last_active_index() const; |
563 }; |
570 }; |
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571 |
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572 #endif // SHARE_VM_MEMORY_BLOCKOFFSETTABLE_HPP |