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1 /*
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2 * Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 # include "incls/_precompiled.incl"
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26 # include "incls/_psMemoryPool.cpp.incl"
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27
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28 PSGenerationPool::PSGenerationPool(PSOldGen* gen,
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29 const char* name,
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30 PoolType type,
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31 bool support_usage_threshold) :
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32 CollectedMemoryPool(name, type, gen->capacity_in_bytes(),
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33 gen->reserved().byte_size(), support_usage_threshold), _gen(gen) {
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34 }
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35
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36 PSGenerationPool::PSGenerationPool(PSPermGen* gen,
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37 const char* name,
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38 PoolType type,
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39 bool support_usage_threshold) :
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40 CollectedMemoryPool(name, type, gen->capacity_in_bytes(),
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41 gen->reserved().byte_size(), support_usage_threshold), _gen(gen) {
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42 }
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43
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44 MemoryUsage PSGenerationPool::get_memory_usage() {
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45 size_t maxSize = (available_for_allocation() ? max_size() : 0);
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46 size_t used = used_in_bytes();
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47 size_t committed = _gen->capacity_in_bytes();
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48
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49 return MemoryUsage(initial_size(), used, committed, maxSize);
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50 }
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51
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52 // The max size of EdenMutableSpacePool =
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53 // max size of the PSYoungGen - capacity of two survivor spaces
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54 //
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55 // Max size of PS eden space is changing due to ergonomic.
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56 // PSYoungGen, PSOldGen, Eden, Survivor spaces are all resizable.
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57 //
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58 EdenMutableSpacePool::EdenMutableSpacePool(PSYoungGen* gen,
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59 MutableSpace* space,
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60 const char* name,
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61 PoolType type,
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62 bool support_usage_threshold) :
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63 CollectedMemoryPool(name, type, space->capacity_in_bytes(),
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64 (gen->max_size() - gen->from_space()->capacity_in_bytes() - gen->to_space()->capacity_in_bytes()),
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65 support_usage_threshold),
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66 _gen(gen), _space(space) {
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67 }
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68
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69 MemoryUsage EdenMutableSpacePool::get_memory_usage() {
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70 size_t maxSize = (available_for_allocation() ? max_size() : 0);
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71 size_t used = used_in_bytes();
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72 size_t committed = _space->capacity_in_bytes();
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73
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74 return MemoryUsage(initial_size(), used, committed, maxSize);
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75 }
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76
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77 // The max size of SurvivorMutableSpacePool =
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78 // current capacity of the from-space
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79 //
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80 // PS from and to survivor spaces could have different sizes.
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81 //
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82 SurvivorMutableSpacePool::SurvivorMutableSpacePool(PSYoungGen* gen,
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83 const char* name,
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84 PoolType type,
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85 bool support_usage_threshold) :
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86 CollectedMemoryPool(name, type, gen->from_space()->capacity_in_bytes(),
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87 gen->from_space()->capacity_in_bytes(),
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88 support_usage_threshold), _gen(gen) {
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89 }
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90
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91 MemoryUsage SurvivorMutableSpacePool::get_memory_usage() {
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92 size_t maxSize = (available_for_allocation() ? max_size() : 0);
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93 size_t used = used_in_bytes();
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94 size_t committed = committed_in_bytes();
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95 return MemoryUsage(initial_size(), used, committed, maxSize);
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96 }
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