src/hotspot/share/gc/shared/oopStorageSetParState.hpp

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#ifndef SHARE_GC_SHARED_OOPSTORAGESETPARSTATE_HPP
#define SHARE_GC_SHARED_OOPSTORAGESETPARSTATE_HPP

#include "gc/shared/oopStorageParState.hpp"
#include "gc/shared/oopStorageSet.hpp"
#include "utilities/enumIterator.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/valueObjArray.hpp"

// Base class for OopStorageSet{Strong,Weak}ParState.
template<typename StorageId, bool concurrent, bool is_const>
class OopStorageSetParState {
public:
  using ParState = OopStorage::ParState<concurrent, is_const>;

  ParState* par_state(StorageId id) const {
    return _par_states.at(checked_cast<int>(EnumRange<StorageId>().index(id)));
  }

protected:
  OopStorageSetParState() : _par_states(OopStorageSet::Range<StorageId>().begin()) {}
  ~OopStorageSetParState() = default;

private:
  ValueObjArray<ParState, EnumRange<StorageId>().size()> _par_states;

  NONCOPYABLE(OopStorageSetParState);
};

// Set of strong parallel states.
template<bool concurrent, bool is_const>
class OopStorageSetStrongParState
  : public OopStorageSetParState<OopStorageSet::StrongId, concurrent, is_const>
{
public:
  template<typename Closure>
  void oops_do(Closure* cl);
};

// Set of weak parallel states.
template<bool concurrent, bool is_const>
class OopStorageSetWeakParState
  : public OopStorageSetParState<OopStorageSet::WeakId, concurrent, is_const>
{
public:
  template<typename Closure>
  void oops_do(Closure* cl);

  void report_num_dead();
};

#endif // SHARE_GC_SHARED_OOPSTORAGESETPARSTATE_HPP