Mercurial > hg > truffle
comparison src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp @ 20265:5255b195f828
8038404: Move object_iterate_mem from Space to CMS since it is only ever used by CMS
Reviewed-by: brutisso, tschatzl, stefank
| author | mgerdin |
|---|---|
| date | Wed, 12 Mar 2014 15:22:45 +0100 |
| parents | 30c99d8e0f02 |
| children | 4c1b88a53c74 |
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| 20264:30c99d8e0f02 | 20265:5255b195f828 |
|---|---|
| 1495 public: | 1495 public: |
| 1496 bool do_bit(size_t offset) { | 1496 bool do_bit(size_t offset) { |
| 1497 guarantee(false, "Should not have a 1 bit"); | 1497 guarantee(false, "Should not have a 1 bit"); |
| 1498 return true; | 1498 return true; |
| 1499 } | 1499 } |
| 1500 }; | |
| 1501 | |
| 1502 // A version of ObjectClosure with "memory" (see _previous_address below) | |
| 1503 class UpwardsObjectClosure: public BoolObjectClosure { | |
| 1504 HeapWord* _previous_address; | |
| 1505 public: | |
| 1506 UpwardsObjectClosure() : _previous_address(NULL) { } | |
| 1507 void set_previous(HeapWord* addr) { _previous_address = addr; } | |
| 1508 HeapWord* previous() { return _previous_address; } | |
| 1509 // A return value of "true" can be used by the caller to decide | |
| 1510 // if this object's end should *NOT* be recorded in | |
| 1511 // _previous_address above. | |
| 1512 virtual bool do_object_bm(oop obj, MemRegion mr) = 0; | |
| 1500 }; | 1513 }; |
| 1501 | 1514 |
| 1502 // This closure is used during the second checkpointing phase | 1515 // This closure is used during the second checkpointing phase |
| 1503 // to rescan the marked objects on the dirty cards in the mod | 1516 // to rescan the marked objects on the dirty cards in the mod |
| 1504 // union table and the card table proper. It's invoked via | 1517 // union table and the card table proper. It's invoked via |