/*

 * Copyright (c) 2016, 2017, 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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 */

#ifndef SHARE_GC_Z_ZMARKCACHE_HPP

#define SHARE_GC_Z_ZMARKCACHE_HPP

#include "gc/z/zGlobals.hpp"

#include "memory/allocation.hpp"

class ZPage;

class ZMarkCacheEntry {

private:

  ZPage*   _page;

  uint32_t _objects;

  size_t   _bytes;

public:

  ZMarkCacheEntry();

  void inc_live(ZPage* page, size_t bytes);

  void evict();

};

class ZMarkCache : public StackObj {

private:

  const size_t    _shift;

  ZMarkCacheEntry _cache[ZMarkCacheSize];

public:

  ZMarkCache(size_t nstripes);

  ~ZMarkCache();

  void inc_live(ZPage* page, size_t bytes);

};

#endif // SHARE_GC_Z_ZMARKCACHE_HPP