1 /*
2 * Copyright (c) 2002, 2004, 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 // A GenerationCounter is a holder class for performance counters
26 // that track a generation
27
28 class GenerationCounters: public CHeapObj {
29 friend class VMStructs;
30
31 protected:
32 PerfVariable* _current_size;
33 VirtualSpace* _virtual_space;
34
35 // Constant PerfData types don't need to retain a reference.
36 // However, it's a good idea to document them here.
37 // PerfStringConstant* _name;
38 // PerfConstant* _min_size;
39 // PerfConstant* _max_size;
40 // PerfConstant* _spaces;
41
42 char* _name_space;
43
44 // This constructor is only meant for use with the PSGenerationCounters
45 // constructor. The need for such an constructor should be eliminated
46 // when VirtualSpace and PSVirtualSpace are unified.
47 GenerationCounters() : _name_space(NULL), _current_size(NULL), _virtual_space(NULL) {}
48 public:
49
50 GenerationCounters(const char* name, int ordinal, int spaces,
51 VirtualSpace* v);
52
53 ~GenerationCounters() {
54 if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space);
55 }
56
57 virtual void update_all() {
58 _current_size->set_value(_virtual_space->committed_size());
59 }
60
61 const char* name_space() const { return _name_space; }
62 };
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1 /*
2 * Copyright (c) 2002, 2010, 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_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
27
28 #include "runtime/perfData.hpp"
29 #include "runtime/virtualspace.hpp"
30
31 // A GenerationCounter is a holder class for performance counters
32 // that track a generation
33
34 class GenerationCounters: public CHeapObj {
35 friend class VMStructs;
36
37 protected:
38 PerfVariable* _current_size;
39 VirtualSpace* _virtual_space;
40
41 // Constant PerfData types don't need to retain a reference.
42 // However, it's a good idea to document them here.
43 // PerfStringConstant* _name;
44 // PerfConstant* _min_size;
45 // PerfConstant* _max_size;
46 // PerfConstant* _spaces;
47
48 char* _name_space;
49
50 // This constructor is only meant for use with the PSGenerationCounters
51 // constructor. The need for such an constructor should be eliminated
52 // when VirtualSpace and PSVirtualSpace are unified.
53 GenerationCounters() : _name_space(NULL), _current_size(NULL), _virtual_space(NULL) {}
54 public:
55
56 GenerationCounters(const char* name, int ordinal, int spaces,
57 VirtualSpace* v);
58
59 ~GenerationCounters() {
60 if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space);
61 }
62
63 virtual void update_all() {
64 _current_size->set_value(_virtual_space->committed_size());
65 }
66
67 const char* name_space() const { return _name_space; }
68 };
69
70 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GENERATIONCOUNTERS_HPP
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