Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp
src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp
- changeset 887
- 00b023ae2d78
- parent 578
- b5489bb705c9
- child 1370
- 05f89f00a864
- child 1424
- 148e5441d916
equal
deleted
inserted
replaced
| 878:b5e603f2e024 | 887:00b023ae2d78 |
|---|---|
| 323 }; | 323 }; |
| 324 | 324 |
| 325 // For objects in CMS generation, this closure marks | 325 // For objects in CMS generation, this closure marks |
| 326 // given objects (transitively) as being reachable/live. | 326 // given objects (transitively) as being reachable/live. |
| 327 // This is currently used during the (weak) reference object | 327 // This is currently used during the (weak) reference object |
| 328 // processing phase of the CMS final checkpoint step. | 328 // processing phase of the CMS final checkpoint step, as |
| 329 // well as during the concurrent precleaning of the discovered | |
| 330 // reference lists. | |
| 329 class CMSKeepAliveClosure: public OopClosure { | 331 class CMSKeepAliveClosure: public OopClosure { |
| 330 private: | 332 private: |
| 331 CMSCollector* _collector; | 333 CMSCollector* _collector; |
| 332 const MemRegion _span; | 334 const MemRegion _span; |
| 333 CMSMarkStack* _mark_stack; | 335 CMSMarkStack* _mark_stack; |
| 334 CMSBitMap* _bit_map; | 336 CMSBitMap* _bit_map; |
| 337 bool _concurrent_precleaning; | |
| 335 protected: | 338 protected: |
| 336 DO_OOP_WORK_DEFN | 339 DO_OOP_WORK_DEFN |
| 337 public: | 340 public: |
| 338 CMSKeepAliveClosure(CMSCollector* collector, MemRegion span, | 341 CMSKeepAliveClosure(CMSCollector* collector, MemRegion span, |
| 339 CMSBitMap* bit_map, CMSMarkStack* mark_stack): | 342 CMSBitMap* bit_map, CMSMarkStack* mark_stack, |
| 343 bool cpc): | |
| 340 _collector(collector), | 344 _collector(collector), |
| 341 _span(span), | 345 _span(span), |
| 342 _bit_map(bit_map), | 346 _bit_map(bit_map), |
| 343 _mark_stack(mark_stack) { | 347 _mark_stack(mark_stack), |
| 348 _concurrent_precleaning(cpc) { | |
| 344 assert(!_span.is_empty(), "Empty span could spell trouble"); | 349 assert(!_span.is_empty(), "Empty span could spell trouble"); |
| 345 } | 350 } |
| 351 bool concurrent_precleaning() const { return _concurrent_precleaning; } | |
| 346 virtual void do_oop(oop* p); | 352 virtual void do_oop(oop* p); |
| 347 virtual void do_oop(narrowOop* p); | 353 virtual void do_oop(narrowOop* p); |
| 348 inline void do_oop_nv(oop* p) { CMSKeepAliveClosure::do_oop_work(p); } | 354 inline void do_oop_nv(oop* p) { CMSKeepAliveClosure::do_oop_work(p); } |
| 349 inline void do_oop_nv(narrowOop* p) { CMSKeepAliveClosure::do_oop_work(p); } | 355 inline void do_oop_nv(narrowOop* p) { CMSKeepAliveClosure::do_oop_work(p); } |
| 350 }; | 356 }; |
