/*

 * Copyright (c) 2017, 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 * questions.

 */

#ifndef SHARE_GC_Z_ZGRANULEMAP_HPP

#define SHARE_GC_Z_ZGRANULEMAP_HPP

#include "memory/allocation.hpp"

template<typename T>

class ZGranuleMapIterator;

template <typename T>

class ZGranuleMap {

  friend class VMStructs;

  friend class ZGranuleMapIterator<T>;

private:

  const size_t _size;

  T* const     _map;

  size_t index_for_addr(uintptr_t addr) const;

public:

  ~ZGranuleMap();

  T get(uintptr_t addr) const;

  void put(uintptr_t addr, T value);

  void put(uintptr_t addr, size_t size, T value);

};

template <typename T>

class ZGranuleMapIterator : public StackObj {

public:

  const ZGranuleMap<T>* const _map;

  size_t                      _next;

public:

  ZGranuleMapIterator(const ZGranuleMap<T>* map);

  bool next(T* value);

  bool next(T** value);

};

#endif // SHARE_GC_Z_ZGRANULEMAP_HPP