1 /* 2 * Copyright (c) 2007, 2013, Oracle and/or its affiliates. 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 #ifndef SHARE_VM_SERVICES_PSMEMORYPOOL_HPP 26 #define SHARE_VM_SERVICES_PSMEMORYPOOL_HPP 27 28 #include "utilities/macros.hpp" 29 #if INCLUDE_ALL_GCS 30 #include "gc_implementation/parallelScavenge/psOldGen.hpp" 31 #include "gc_implementation/parallelScavenge/psYoungGen.hpp" 32 #include "gc_implementation/shared/mutableSpace.hpp" 33 #include "memory/defNewGeneration.hpp" 34 #include "memory/heap.hpp" 35 #include "memory/space.hpp" 36 #include "services/memoryPool.hpp" 37 #include "services/memoryUsage.hpp" 38 #endif // INCLUDE_ALL_GCS 39 40 class PSGenerationPool : public CollectedMemoryPool { 41 private: 42 PSOldGen* _gen; 43 44 public: 45 PSGenerationPool(PSOldGen* pool, const char* name, PoolType type, bool support_usage_threshold); 46 47 MemoryUsage get_memory_usage(); 48 size_t used_in_bytes() { return _gen->used_in_bytes(); } 49 size_t max_size() const { return _gen->reserved().byte_size(); } 50 }; 51 52 class EdenMutableSpacePool : public CollectedMemoryPool { 53 private: 54 PSYoungGen* _gen; 55 MutableSpace* _space; 56 57 public: 58 EdenMutableSpacePool(PSYoungGen* gen, 59 MutableSpace* space, 60 const char* name, 61 PoolType type, 62 bool support_usage_threshold); 63 64 MutableSpace* space() { return _space; } 65 MemoryUsage get_memory_usage(); 66 size_t used_in_bytes() { return space()->used_in_bytes(); } 67 size_t max_size() const { 68 // Eden's max_size = max_size of Young Gen - the current committed size of survivor spaces 69 return _gen->max_size() - _gen->from_space()->capacity_in_bytes() - _gen->to_space()->capacity_in_bytes(); 70 } 71 }; 72 73 class SurvivorMutableSpacePool : public CollectedMemoryPool { 74 private: 75 PSYoungGen* _gen; 76 77 public: 78 SurvivorMutableSpacePool(PSYoungGen* gen, 79 const char* name, 80 PoolType type, 81 bool support_usage_threshold); 82 83 MemoryUsage get_memory_usage(); 84 85 size_t used_in_bytes() { 86 return _gen->from_space()->used_in_bytes(); 87 } 88 size_t committed_in_bytes() { 89 return _gen->from_space()->capacity_in_bytes(); 90 } 91 size_t max_size() const { 92 // Return current committed size of the from-space 93 return _gen->from_space()->capacity_in_bytes(); 94 } 95 }; 96 97 #endif // SHARE_VM_SERVICES_PSMEMORYPOOL_HPP