Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.hpp
src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.hpp
- changeset 5860
- 69944b868a32
- parent 5811
- d55c004e1d4d
- child 6198
- 55fb97c4c58d
- child 6493
- 3205e78d8193
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replaced
| 5859:04b18a42c2f3 | 5860:69944b868a32 |
|---|---|
| 36 | 36 |
| 37 // This barrier is specialized to use a logging barrier to support | 37 // This barrier is specialized to use a logging barrier to support |
| 38 // snapshot-at-the-beginning marking. | 38 // snapshot-at-the-beginning marking. |
| 39 | 39 |
| 40 class G1SATBCardTableModRefBS: public CardTableModRefBSForCTRS { | 40 class G1SATBCardTableModRefBS: public CardTableModRefBSForCTRS { |
| 41 protected: | |
| 42 enum G1CardValues { | |
| 43 g1_young_gen = CT_MR_BS_last_reserved << 1 | |
| 44 }; | |
| 45 | |
| 41 public: | 46 public: |
| 47 static int g1_young_card_val() { return g1_young_gen; } | |
| 48 | |
| 42 // Add "pre_val" to a set of objects that may have been disconnected from the | 49 // Add "pre_val" to a set of objects that may have been disconnected from the |
| 43 // pre-marking object graph. | 50 // pre-marking object graph. |
| 44 static void enqueue(oop pre_val); | 51 static void enqueue(oop pre_val); |
| 45 | 52 |
| 46 G1SATBCardTableModRefBS(MemRegion whole_heap, | 53 G1SATBCardTableModRefBS(MemRegion whole_heap, |
| 116 val |= (jbyte)claimed_card_val(); | 123 val |= (jbyte)claimed_card_val(); |
| 117 } | 124 } |
| 118 _byte_map[card_index] = val; | 125 _byte_map[card_index] = val; |
| 119 } | 126 } |
| 120 | 127 |
| 128 void verify_g1_young_region(MemRegion mr) PRODUCT_RETURN; | |
| 129 void g1_mark_as_young(const MemRegion& mr); | |
| 130 | |
| 121 bool mark_card_deferred(size_t card_index); | 131 bool mark_card_deferred(size_t card_index); |
| 122 | 132 |
| 123 bool is_card_deferred(size_t card_index) { | 133 bool is_card_deferred(size_t card_index) { |
| 124 jbyte val = _byte_map[card_index]; | 134 jbyte val = _byte_map[card_index]; |
| 125 return (val & (clean_card_mask_val() | deferred_card_val())) == deferred_card_val(); | 135 return (val & (clean_card_mask_val() | deferred_card_val())) == deferred_card_val(); |
