src/hotspot/share/gc/shared/genMemoryPools.cpp
author stefank
Thu, 22 Feb 2018 18:36:32 +0100
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permissions -rw-r--r--
8198525: Move _size_policy out of GenCollectorPolicy into GenCollectedHeap Reviewed-by: pliden, sjohanss
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/*
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 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "gc/serial/defNewGeneration.hpp"
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#include "gc/shared/generation.hpp"
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#include "gc/shared/genMemoryPools.hpp"
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#include "gc/shared/space.hpp"
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ContiguousSpacePool::ContiguousSpacePool(ContiguousSpace* space,
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                                         const char* name,
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                                         size_t max_size,
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                                         bool support_usage_threshold) :
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  CollectedMemoryPool(name, space->capacity(), max_size,
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                      support_usage_threshold), _space(space) {
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}
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size_t ContiguousSpacePool::used_in_bytes() {
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  return space()->used();
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}
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MemoryUsage ContiguousSpacePool::get_memory_usage() {
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  size_t maxSize   = (available_for_allocation() ? max_size() : 0);
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  size_t used      = used_in_bytes();
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  size_t committed = _space->capacity();
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  return MemoryUsage(initial_size(), used, committed, maxSize);
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}
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SurvivorContiguousSpacePool::SurvivorContiguousSpacePool(DefNewGeneration* young_gen,
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                                                         const char* name,
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                                                         size_t max_size,
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                                                         bool support_usage_threshold) :
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  CollectedMemoryPool(name, young_gen->from()->capacity(), max_size,
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                      support_usage_threshold), _young_gen(young_gen) {
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}
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size_t SurvivorContiguousSpacePool::used_in_bytes() {
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  return _young_gen->from()->used();
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}
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size_t SurvivorContiguousSpacePool::committed_in_bytes() {
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  return _young_gen->from()->capacity();
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}
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MemoryUsage SurvivorContiguousSpacePool::get_memory_usage() {
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  size_t maxSize = (available_for_allocation() ? max_size() : 0);
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  size_t used    = used_in_bytes();
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  size_t committed = committed_in_bytes();
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  return MemoryUsage(initial_size(), used, committed, maxSize);
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}
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GenerationPool::GenerationPool(Generation* gen,
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                               const char* name,
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                               bool support_usage_threshold) :
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  CollectedMemoryPool(name, gen->capacity(), gen->max_capacity(),
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                      support_usage_threshold), _gen(gen) {
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}
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size_t GenerationPool::used_in_bytes() {
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  return _gen->used();
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}
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MemoryUsage GenerationPool::get_memory_usage() {
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  size_t used      = used_in_bytes();
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  size_t committed = _gen->capacity();
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  size_t maxSize   = (available_for_allocation() ? max_size() : 0);
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  return MemoryUsage(initial_size(), used, committed, maxSize);
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}