1 /*
2 * Copyright (c) 2012, 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.
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23 */
24
25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCHEAPSUMMARY_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCHEAPSUMMARY_HPP
27
28 #include "memory/allocation.hpp"
29
30 class VirtualSpaceSummary : public StackObj {
31 HeapWord* _start;
32 HeapWord* _committed_end;
33 HeapWord* _reserved_end;
34 public:
35 VirtualSpaceSummary() :
36 _start(NULL), _committed_end(NULL), _reserved_end(NULL) { }
37 VirtualSpaceSummary(HeapWord* start, HeapWord* committed_end, HeapWord* reserved_end) :
38 _start(start), _committed_end(committed_end), _reserved_end(reserved_end) { }
39
40 HeapWord* start() const { return _start; }
41 HeapWord* committed_end() const { return _committed_end; }
42 HeapWord* reserved_end() const { return _reserved_end; }
43 size_t committed_size() const { return (uintptr_t)_committed_end - (uintptr_t)_start; }
44 size_t reserved_size() const { return (uintptr_t)_reserved_end - (uintptr_t)_start; }
45 };
46
47 class SpaceSummary : public StackObj {
48 HeapWord* _start;
49 HeapWord* _end;
50 size_t _used;
51 public:
52 SpaceSummary() :
53 _start(NULL), _end(NULL), _used(0) { }
54 SpaceSummary(HeapWord* start, HeapWord* end, size_t used) :
55 _start(start), _end(end), _used(used) { }
56
57 HeapWord* start() const { return _start; }
58 HeapWord* end() const { return _end; }
59 size_t used() const { return _used; }
60 size_t size() const { return (uintptr_t)_end - (uintptr_t)_start; }
61 };
62
63 class MetaspaceSizes : public StackObj {
64 size_t _capacity;
65 size_t _used;
66 size_t _reserved;
67
68 public:
69 MetaspaceSizes() : _capacity(0), _used(0), _reserved(0) {}
70 MetaspaceSizes(size_t capacity, size_t used, size_t reserved) :
71 _capacity(capacity), _used(used), _reserved(reserved) {}
72
73 size_t capacity() const { return _capacity; }
74 size_t used() const { return _used; }
75 size_t reserved() const { return _reserved; }
76 };
77
78 class GCHeapSummary;
79 class PSHeapSummary;
80
81 class GCHeapSummaryVisitor {
82 public:
83 virtual void visit(const GCHeapSummary* heap_summary) const = 0;
84 virtual void visit(const PSHeapSummary* heap_summary) const {}
85 };
86
87 class GCHeapSummary : public StackObj {
88 VirtualSpaceSummary _heap;
89 size_t _used;
90
91 public:
92 GCHeapSummary() :
93 _heap(), _used(0) { }
94 GCHeapSummary(VirtualSpaceSummary& heap_space, size_t used) :
95 _heap(heap_space), _used(used) { }
96
97 const VirtualSpaceSummary& heap() const { return _heap; }
98 size_t used() const { return _used; }
99
100 virtual void accept(GCHeapSummaryVisitor* visitor) const {
101 visitor->visit(this);
102 }
103 };
104
105 class PSHeapSummary : public GCHeapSummary {
106 VirtualSpaceSummary _old;
107 SpaceSummary _old_space;
108 VirtualSpaceSummary _young;
109 SpaceSummary _eden;
110 SpaceSummary _from;
111 SpaceSummary _to;
112 public:
113 PSHeapSummary(VirtualSpaceSummary& heap_space, size_t heap_used, VirtualSpaceSummary old, SpaceSummary old_space, VirtualSpaceSummary young, SpaceSummary eden, SpaceSummary from, SpaceSummary to) :
114 GCHeapSummary(heap_space, heap_used), _old(old), _old_space(old_space), _young(young), _eden(eden), _from(from), _to(to) { }
115 const VirtualSpaceSummary& old() const { return _old; }
116 const SpaceSummary& old_space() const { return _old_space; }
117 const VirtualSpaceSummary& young() const { return _young; }
118 const SpaceSummary& eden() const { return _eden; }
119 const SpaceSummary& from() const { return _from; }
120 const SpaceSummary& to() const { return _to; }
121
122 virtual void accept(GCHeapSummaryVisitor* visitor) const {
123 visitor->visit(this);
124 }
125 };
126
127 class MetaspaceSummary : public StackObj {
128 size_t _capacity_until_GC;
129 MetaspaceSizes _meta_space;
130 MetaspaceSizes _data_space;
131 MetaspaceSizes _class_space;
132
133 public:
134 MetaspaceSummary() : _capacity_until_GC(0), _meta_space(), _data_space(), _class_space() {}
135 MetaspaceSummary(size_t capacity_until_GC, const MetaspaceSizes& meta_space, const MetaspaceSizes& data_space, const MetaspaceSizes& class_space) :
136 _capacity_until_GC(capacity_until_GC), _meta_space(meta_space), _data_space(data_space), _class_space(class_space) { }
137
138 size_t capacity_until_GC() const { return _capacity_until_GC; }
139 const MetaspaceSizes& meta_space() const { return _meta_space; }
140 const MetaspaceSizes& data_space() const { return _data_space; }
141 const MetaspaceSizes& class_space() const { return _class_space; }
142 };
143
144 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCHEAPSUMMARY_HPP