src/hotspot/share/gc/epsilon/epsilonMemoryPool.cpp

/*
 * Copyright (c) 2017, 2018, Red Hat, Inc. 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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#include "precompiled.hpp"
#include "gc/epsilon/epsilonHeap.hpp"
#include "gc/epsilon/epsilonMemoryPool.hpp"

EpsilonMemoryPool::EpsilonMemoryPool(EpsilonHeap* heap) :
        _heap(heap),
        CollectedMemoryPool("Epsilon Heap",
                            heap->capacity(),
                            heap->max_capacity(),
                            false) {
  assert(UseEpsilonGC, "sanity");
}

MemoryUsage EpsilonMemoryPool::get_memory_usage() {
  size_t initial_sz = initial_size();
  size_t max_sz     = max_size();
  size_t used       = used_in_bytes();
  size_t committed  = committed_in_bytes();

  return MemoryUsage(initial_sz, used, committed, max_sz);
}