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annotate src/share/vm/memory/generationSpec.hpp @ 21738:28943e5044b5
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author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 04 Jun 2015 19:49:45 -0700 |
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0 | 1 /* |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_MEMORY_GENERATIONSPEC_HPP |
26 #define SHARE_VM_MEMORY_GENERATIONSPEC_HPP | |
27 | |
28 #include "memory/generation.hpp" | |
29 | |
0 | 30 // The specification of a generation. This class also encapsulates |
31 // some generation-specific behavior. This is done here rather than as a | |
32 // virtual function of Generation because these methods are needed in | |
33 // initialization of the Generations. | |
6197 | 34 class GenerationSpec : public CHeapObj<mtGC> { |
0 | 35 friend class VMStructs; |
36 private: | |
37 Generation::Name _name; | |
38 size_t _init_size; | |
39 size_t _max_size; | |
40 | |
41 public: | |
42 GenerationSpec(Generation::Name name, size_t init_size, size_t max_size) { | |
43 _name = name; | |
44 _init_size = init_size; | |
45 _max_size = max_size; | |
46 } | |
47 | |
48 Generation* init(ReservedSpace rs, int level, GenRemSet* remset); | |
49 | |
50 // Accessors | |
51 Generation::Name name() const { return _name; } | |
52 size_t init_size() const { return _init_size; } | |
53 void set_init_size(size_t size) { _init_size = size; } | |
54 size_t max_size() const { return _max_size; } | |
55 void set_max_size(size_t size) { _max_size = size; } | |
56 | |
57 // Alignment | |
58 void align(size_t alignment) { | |
59 set_init_size(align_size_up(init_size(), alignment)); | |
60 set_max_size(align_size_up(max_size(), alignment)); | |
61 } | |
62 | |
63 // Return the number of regions contained in the generation which | |
64 // might need to be independently covered by a remembered set. | |
65 virtual int n_covered_regions() const { return 1; } | |
66 }; | |
67 | |
68 typedef GenerationSpec* GenerationSpecPtr; | |
69 | |
1972 | 70 #endif // SHARE_VM_MEMORY_GENERATIONSPEC_HPP |