class Generation; class CardTableRS; class CardTableBarrierSet; class DefNewGeneration; class KlassRemSet; class Method; class nmethod;
#if INCLUDE_SERIALGC
// Super closure class for scanning DefNewGeneration. // // - Derived: The derived type provides necessary barrier // after an oop has been updated. template <typename Derived> class FastScanClosure : public BasicOopIterateClosure { private:
DefNewGeneration* _young_gen;
HeapWord* _young_gen_end;
// Closure for scanning DefNewGeneration when iterating over the old generation. // // This closure performs barrier store calls on pointers into the DefNewGeneration. class DefNewYoungerGenClosure : public FastScanClosure<DefNewYoungerGenClosure> { private:
Generation* _old_gen;
HeapWord* _old_gen_start;
CardTableRS* _rs;
// Closure for scanning DefNewGeneration when *not* iterating over the old generation. // // This closures records changes to oops in CLDs. class DefNewScanClosure : public FastScanClosure<DefNewScanClosure> {
ClassLoaderData* _scanned_cld;
// Closure for scanning DefNewGeneration's weak references. // -- weak references are processed all at once, // with no notion of which generation they were in. class ScanWeakRefClosure: public OopClosure { protected:
DefNewGeneration* _g;
HeapWord* _boundary; template <class T> inlinevoid do_oop_work(T* p); public:
ScanWeakRefClosure(DefNewGeneration* g); virtualvoid do_oop(oop* p); virtualvoid do_oop(narrowOop* p);
};
#endif// INCLUDE_SERIALGC
#endif// SHARE_GC_SHARED_GENOOPCLOSURES_HPP
Messung V0.5 in Prozent
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(vorverarbeitet am 2026-06-10)
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