/*

 * Copyright (c) 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

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

 * questions.

 *

 */

#include "precompiled.hpp"

#include "gc/serial/defNewGeneration.hpp"

#include "gc/shared/generation.hpp"

#include "gc/shared/genMemoryPools.hpp"

#include "gc/shared/space.hpp"

ContiguousSpacePool::ContiguousSpacePool(ContiguousSpace* space,

                                         const char* name,

                                         size_t max_size,

                                         bool support_usage_threshold) :

  CollectedMemoryPool(name, space->capacity(), max_size,

                      support_usage_threshold), _space(space) {

}

size_t ContiguousSpacePool::used_in_bytes() {

  return space()->used();

}

MemoryUsage ContiguousSpacePool::get_memory_usage() {

  size_t maxSize   = (available_for_allocation() ? max_size() : 0);

  size_t used      = used_in_bytes();

  size_t committed = _space->capacity();

  return MemoryUsage(initial_size(), used, committed, maxSize);

}

SurvivorContiguousSpacePool::SurvivorContiguousSpacePool(DefNewGeneration* young_gen,

                                                         const char* name,

                                                         size_t max_size,

                                                         bool support_usage_threshold) :

  CollectedMemoryPool(name, young_gen->from()->capacity(), max_size,

                      support_usage_threshold), _young_gen(young_gen) {

}

size_t SurvivorContiguousSpacePool::used_in_bytes() {

  return _young_gen->from()->used();

}

size_t SurvivorContiguousSpacePool::committed_in_bytes() {

  return _young_gen->from()->capacity();

}

MemoryUsage SurvivorContiguousSpacePool::get_memory_usage() {

  size_t maxSize = (available_for_allocation() ? max_size() : 0);

  size_t used    = used_in_bytes();

  size_t committed = committed_in_bytes();

  return MemoryUsage(initial_size(), used, committed, maxSize);

}

GenerationPool::GenerationPool(Generation* gen,

                               const char* name,

                               bool support_usage_threshold) :

  CollectedMemoryPool(name, gen->capacity(), gen->max_capacity(),

                      support_usage_threshold), _gen(gen) {

}

size_t GenerationPool::used_in_bytes() {

  return _gen->used();

}

MemoryUsage GenerationPool::get_memory_usage() {

  size_t used      = used_in_bytes();

  size_t committed = _gen->capacity();

  size_t maxSize   = (available_for_allocation() ? max_size() : 0);

  return MemoryUsage(initial_size(), used, committed, maxSize);

}