/*

 *

 * 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#ifndef SHARE_VM_GC_EPSILON_EPSILONMEMORYPOOL_HPP

#define SHARE_VM_GC_EPSILON_EPSILONMEMORYPOOL_HPP

#include "utilities/macros.hpp"

#if INCLUDE_ALL_GCS

#include "gc/epsilon/epsilonHeap.hpp"

#include "services/memoryPool.hpp"

#include "services/memoryUsage.hpp"

#endif // INCLUDE_ALL_GCS

class EpsilonDummyMemoryPool : public CollectedMemoryPool {

public:

  EpsilonDummyMemoryPool();

  MemoryUsage get_memory_usage()      { return MemoryUsage(0, 0, 0, 0); }

  size_t used_in_bytes()              { return 0; }

  size_t max_size() const             { return 0; }

};

class EpsilonMemoryPool : public CollectedMemoryPool {

private:

  const static size_t _undefined_max = (size_t) -1;

  EpsilonHeap* _heap;

public:

  EpsilonMemoryPool(EpsilonHeap* heap);

  size_t committed_in_bytes() {

    return _heap->capacity();

  }

  size_t used_in_bytes() {

    return _heap->used();

  }

  size_t max_size() const {

    return _heap->max_capacity();

  }

  MemoryUsage get_memory_usage();

};

#endif // SHARE_VM_GC_EPSILON_EPSILONMEMORYPOOL_HPP