duke@435: /*
coleenp@4037:  * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #include "precompiled.hpp"
stefank@2314: #include "classfile/systemDictionary.hpp"
stefank@2314: #include "classfile/vmSymbols.hpp"
stefank@2314: #include "oops/oop.inline.hpp"
stefank@2314: #include "runtime/handles.inline.hpp"
stefank@2314: #include "runtime/javaCalls.hpp"
stefank@2314: #include "services/lowMemoryDetector.hpp"
stefank@2314: #include "services/management.hpp"
stefank@2314: #include "services/memoryManager.hpp"
stefank@2314: #include "services/psMemoryPool.hpp"
duke@435: 
duke@435: PSGenerationPool::PSGenerationPool(PSOldGen* gen,
duke@435:                                    const char* name,
duke@435:                                    PoolType type,
duke@435:                                    bool support_usage_threshold) :
duke@435:   CollectedMemoryPool(name, type, gen->capacity_in_bytes(),
duke@435:                       gen->reserved().byte_size(), support_usage_threshold), _gen(gen) {
duke@435: }
duke@435: 
duke@435: MemoryUsage PSGenerationPool::get_memory_usage() {
duke@435:   size_t maxSize   = (available_for_allocation() ? max_size() : 0);
duke@435:   size_t used      = used_in_bytes();
duke@435:   size_t committed = _gen->capacity_in_bytes();
duke@435: 
duke@435:   return MemoryUsage(initial_size(), used, committed, maxSize);
duke@435: }
duke@435: 
duke@435: // The max size of EdenMutableSpacePool =
duke@435: //     max size of the PSYoungGen - capacity of two survivor spaces
duke@435: //
duke@435: // Max size of PS eden space is changing due to ergonomic.
duke@435: // PSYoungGen, PSOldGen, Eden, Survivor spaces are all resizable.
duke@435: //
duke@435: EdenMutableSpacePool::EdenMutableSpacePool(PSYoungGen* gen,
duke@435:                                            MutableSpace* space,
duke@435:                                            const char* name,
duke@435:                                            PoolType type,
duke@435:                                            bool support_usage_threshold) :
duke@435:   CollectedMemoryPool(name, type, space->capacity_in_bytes(),
duke@435:                       (gen->max_size() - gen->from_space()->capacity_in_bytes() - gen->to_space()->capacity_in_bytes()),
duke@435:                        support_usage_threshold),
duke@435:   _gen(gen), _space(space) {
duke@435: }
duke@435: 
duke@435: MemoryUsage EdenMutableSpacePool::get_memory_usage() {
duke@435:   size_t maxSize   = (available_for_allocation() ? max_size() : 0);
duke@435:   size_t used = used_in_bytes();
duke@435:   size_t committed = _space->capacity_in_bytes();
duke@435: 
duke@435:   return MemoryUsage(initial_size(), used, committed, maxSize);
duke@435: }
duke@435: 
duke@435: // The max size of SurvivorMutableSpacePool =
duke@435: //     current capacity of the from-space
duke@435: //
duke@435: // PS from and to survivor spaces could have different sizes.
duke@435: //
duke@435: SurvivorMutableSpacePool::SurvivorMutableSpacePool(PSYoungGen* gen,
duke@435:                                                    const char* name,
duke@435:                                                    PoolType type,
duke@435:                                                    bool support_usage_threshold) :
duke@435:   CollectedMemoryPool(name, type, gen->from_space()->capacity_in_bytes(),
duke@435:                       gen->from_space()->capacity_in_bytes(),
duke@435:                       support_usage_threshold), _gen(gen) {
duke@435: }
duke@435: 
duke@435: MemoryUsage SurvivorMutableSpacePool::get_memory_usage() {
duke@435:   size_t maxSize = (available_for_allocation() ? max_size() : 0);
duke@435:   size_t used    = used_in_bytes();
duke@435:   size_t committed = committed_in_bytes();
duke@435:   return MemoryUsage(initial_size(), used, committed, maxSize);
duke@435: }