1 /*
   2  * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc/epsilon/epsilonHeap.hpp"
  27 #include "epsilonMemoryPool.hpp"
  28 
  29 EpsilonMemoryPool::EpsilonMemoryPool(EpsilonHeap* heap) :
  30         _heap(heap),
  31         CollectedMemoryPool("Epsilon Heap",
  32                             heap->capacity(),
  33                             heap->max_capacity(),
  34                             false) {
  35   assert(UseEpsilonGC, "sanity");
  36 }
  37 
  38 MemoryUsage EpsilonMemoryPool::get_memory_usage() {
  39   size_t initial_sz = initial_size();
  40   size_t max_sz     = max_size();
  41   size_t used       = used_in_bytes();
  42   size_t committed  = committed_in_bytes();
  43 
  44   return MemoryUsage(initial_sz, used, committed, max_sz);
  45 }