/*

 * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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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