1/*
2 * Copyright (c) 2007, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.
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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 *
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24
25#ifndef SHARE_GC_PARALLEL_PSMEMORYPOOL_HPP
26#define SHARE_GC_PARALLEL_PSMEMORYPOOL_HPP
27
28#include "gc/parallel/mutableSpace.hpp"
29#include "gc/parallel/psOldGen.hpp"
30#include "gc/parallel/psYoungGen.hpp"
31#include "services/memoryPool.hpp"
32#include "services/memoryUsage.hpp"
33
34class PSGenerationPool : public CollectedMemoryPool {
35private:
36 PSOldGen* _old_gen;
37
38public:
39 PSGenerationPool(PSOldGen* pool, const char* name, bool support_usage_threshold);
40
41 MemoryUsage get_memory_usage();
42 size_t used_in_bytes() { return _old_gen->used_in_bytes(); }
43 size_t max_size() const { return _old_gen->reserved().byte_size(); }
44};
45
46class EdenMutableSpacePool : public CollectedMemoryPool {
47private:
48 PSYoungGen* _young_gen;
49 MutableSpace* _space;
50
51public:
52 EdenMutableSpacePool(PSYoungGen* young_gen,
53 MutableSpace* space,
54 const char* name,
55 bool support_usage_threshold);
56
57 MutableSpace* space() { return _space; }
58 MemoryUsage get_memory_usage();
59 size_t used_in_bytes() { return space()->used_in_bytes(); }
60 size_t max_size() const {
61 // Eden's max_size = max_size of Young Gen - the current committed size of survivor spaces
62 return _young_gen->max_size() - _young_gen->from_space()->capacity_in_bytes() - _young_gen->to_space()->capacity_in_bytes();
63 }
64};
65
66class SurvivorMutableSpacePool : public CollectedMemoryPool {
67private:
68 PSYoungGen* _young_gen;
69
70public:
71 SurvivorMutableSpacePool(PSYoungGen* young_gen,
72 const char* name,
73 bool support_usage_threshold);
74
75 MemoryUsage get_memory_usage();
76
77 size_t used_in_bytes() {
78 return _young_gen->from_space()->used_in_bytes();
79 }
80 size_t committed_in_bytes() {
81 return _young_gen->from_space()->capacity_in_bytes();
82 }
83 size_t max_size() const {
84 // Return current committed size of the from-space
85 return _young_gen->from_space()->capacity_in_bytes();
86 }
87};
88
89#endif // SHARE_GC_PARALLEL_PSMEMORYPOOL_HPP
90