src/hotspot/share/gc/g1/g1OopStarChunkedList.hpp
author tschatzl
Mon, 08 Apr 2019 20:37:52 +0200
changeset 54465 c4f16445675a
parent 52897 495c05ee2a9a
permissions -rw-r--r--
8218668: Clean up evacuation of optional collection set Summary: Better integrate optional collection set evacuation into the existing evacuation scheme, fixing a few minor issues with the initial implementation. Reviewed-by: kbarrett, sangheki

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#ifndef SHARE_GC_G1_G1OOPSTARCHUNKEDLIST_HPP
#define SHARE_GC_G1_G1OOPSTARCHUNKEDLIST_HPP

#include "oops/oopsHierarchy.hpp"
#include "utilities/chunkedList.hpp"

class OopClosure;

class G1OopStarChunkedList : public CHeapObj<mtGC> {
  size_t _used_memory;

  ChunkedList<oop*, mtGC>* _roots;
  ChunkedList<narrowOop*, mtGC>* _croots;
  ChunkedList<oop*, mtGC>* _oops;
  ChunkedList<narrowOop*, mtGC>* _coops;

  template <typename T> void delete_list(ChunkedList<T*, mtGC>* c);

  template <typename T>
  size_t chunks_do(ChunkedList<T*, mtGC>* head,
                   OopClosure* cl);

  template <typename T>
  inline void push(ChunkedList<T*, mtGC>** field, T* p);

 public:
  G1OopStarChunkedList() : _used_memory(0), _roots(NULL), _croots(NULL), _oops(NULL), _coops(NULL) {}
  ~G1OopStarChunkedList();

  size_t used_memory() { return _used_memory; }

  size_t oops_do(OopClosure* obj_cl, OopClosure* root_cl);

  inline void push_oop(oop* p);
  inline void push_oop(narrowOop* p);
  inline void push_root(oop* p);
  inline void push_root(narrowOop* p);
};

#endif // SHARE_GC_G1_G1OOPSTARCHUNKEDLIST_HPP