1 /* 2 * Copyright (c) 2017, 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 #include "precompiled.hpp" 26 #include "gc/shared/generation.hpp" 27 #include "gc/shared/genMemoryPools.hpp" 28 #include "gc/shared/space.hpp" 29 #if INCLUDE_SERIALGC 30 #include "gc/serial/defNewGeneration.hpp" 31 #endif 32 33 ContiguousSpacePool::ContiguousSpacePool(ContiguousSpace* space, 34 const char* name, 35 size_t max_size, 36 bool support_usage_threshold) : 37 CollectedMemoryPool(name, space->capacity(), max_size, 38 support_usage_threshold), _space(space) { 39 } 40 41 size_t ContiguousSpacePool::used_in_bytes() { 42 return space()->used(); 43 } 44 45 MemoryUsage ContiguousSpacePool::get_memory_usage() { 46 size_t maxSize = (available_for_allocation() ? max_size() : 0); 47 size_t used = used_in_bytes(); 48 size_t committed = _space->capacity(); 49 50 return MemoryUsage(initial_size(), used, committed, maxSize); 51 } 52 53 #if INCLUDE_SERIALGC 54 55 SurvivorContiguousSpacePool::SurvivorContiguousSpacePool(DefNewGeneration* young_gen, 56 const char* name, 57 size_t max_size, 58 bool support_usage_threshold) : 59 CollectedMemoryPool(name, young_gen->from()->capacity(), max_size, 60 support_usage_threshold), _young_gen(young_gen) { 61 } 62 63 size_t SurvivorContiguousSpacePool::used_in_bytes() { 64 return _young_gen->from()->used(); 65 } 66 67 size_t SurvivorContiguousSpacePool::committed_in_bytes() { 68 return _young_gen->from()->capacity(); 69 } 70 71 MemoryUsage SurvivorContiguousSpacePool::get_memory_usage() { 72 size_t maxSize = (available_for_allocation() ? max_size() : 0); 73 size_t used = used_in_bytes(); 74 size_t committed = committed_in_bytes(); 75 76 return MemoryUsage(initial_size(), used, committed, maxSize); 77 } 78 79 #endif // INCLUDE_SERIALGC 80 81 GenerationPool::GenerationPool(Generation* gen, 82 const char* name, 83 bool support_usage_threshold) : 84 CollectedMemoryPool(name, gen->capacity(), gen->max_capacity(), 85 support_usage_threshold), _gen(gen) { 86 } 87 88 size_t GenerationPool::used_in_bytes() { 89 return _gen->used(); 90 } 91 92 MemoryUsage GenerationPool::get_memory_usage() { 93 size_t used = used_in_bytes(); 94 size_t committed = _gen->capacity(); 95 size_t maxSize = (available_for_allocation() ? max_size() : 0); 96 97 return MemoryUsage(initial_size(), used, committed, maxSize); 98 }