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8038404: Move object_iterate_mem from Space to CMS since it is only ever used by CMS

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Reviewed-by: brutisso, tschatzl, stefank
This commit is contained in:
Mikael Gerdin 2014-03-12 15:22:45 +01:00
parent 98d8c51389
commit e72dd1b433
6 changed files with 71 additions and 115 deletions
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13
hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp
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@ -1498,6 +1498,19 @@ class FalseBitMapClosure: public BitMapClosure {
}
};
// A version of ObjectClosure with "memory" (see _previous_address below)
class UpwardsObjectClosure: public BoolObjectClosure {
HeapWord* _previous_address;
public:
UpwardsObjectClosure() : _previous_address(NULL) { }
void set_previous(HeapWord* addr) { _previous_address = addr; }
HeapWord* previous() { return _previous_address; }
// A return value of "true" can be used by the caller to decide
// if this object's end should *NOT* be recorded in
// _previous_address above.
virtual bool do_object_bm(oop obj, MemRegion mr) = 0;
};
// This closure is used during the second checkpointing phase
// to rescan the marked objects on the dirty cards in the mod
// union table and the card table proper. It's invoked via