/*

 * Copyright (c) 2015, 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_G1SURVIVORREGIONS_HPP

#define SHARE_GC_G1_G1SURVIVORREGIONS_HPP

#include "runtime/globals.hpp"

template <typename T>

class GrowableArray;

class HeapRegion;

class G1SurvivorRegions {

private:

  GrowableArray<HeapRegion*>* _regions;

  volatile size_t             _used_bytes;

public:

  G1SurvivorRegions();

  void convert_to_eden();

  void clear();

  uint length() const;

  const GrowableArray<HeapRegion*>* regions() const {

    return _regions;

  }

  // Used bytes of all survivor regions.

  size_t used_bytes() const { return _used_bytes; }

  void add_used_bytes(size_t used_bytes);

};

#endif // SHARE_GC_G1_G1SURVIVORREGIONS_HPP