1 /*
2 * Copyright (c) 2003, 2005, 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 class instanceKlass;
26
27 // VM monitoring and management support for the Class Loading subsystem
28 class ClassLoadingService : public AllStatic {
29 private:
30 // Counters for classes loaded from class files
31 static PerfCounter* _classes_loaded_count;
32 static PerfCounter* _classes_unloaded_count;
33 static PerfCounter* _classbytes_loaded;
34 static PerfCounter* _classbytes_unloaded;
35
36 // Counters for classes loaded from shared archive
37 static PerfCounter* _shared_classes_loaded_count;
38 static PerfCounter* _shared_classes_unloaded_count;
39 static PerfCounter* _shared_classbytes_loaded;
40 static PerfCounter* _shared_classbytes_unloaded;
41
42 static PerfVariable* _class_methods_size;
43
44 static size_t compute_class_size(instanceKlass* k);
116
117 public:
118 LoadedClassesEnumerator(Thread* cur_thread);
119
120 int num_loaded_classes() { return _klass_handle_array->length(); }
121 KlassHandle get_klass(int index) { return _klass_handle_array->at(index); }
122
123 static void add_loaded_class(klassOop k) {
124 // FIXME: For now - don't include array klasses
125 // The spec is unclear at this point to count array klasses or not
126 // and also indirect creation of array of super class and secondaries
127 //
128 // for (klassOop l = k; l != NULL; l = Klass::cast(l)->array_klass_or_null()) {
129 // KlassHandle h(_current_thread, l);
130 // _loaded_classes->append(h);
131 // }
132 KlassHandle h(_current_thread, k);
133 _loaded_classes->append(h);
134 }
135 };
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1 /*
2 * Copyright (c) 2003, 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_SERVICES_CLASSLOADINGSERVICE_HPP
26 #define SHARE_VM_SERVICES_CLASSLOADINGSERVICE_HPP
27
28 #include "runtime/handles.hpp"
29 #include "runtime/perfData.hpp"
30 #include "utilities/growableArray.hpp"
31
32 class instanceKlass;
33
34 // VM monitoring and management support for the Class Loading subsystem
35 class ClassLoadingService : public AllStatic {
36 private:
37 // Counters for classes loaded from class files
38 static PerfCounter* _classes_loaded_count;
39 static PerfCounter* _classes_unloaded_count;
40 static PerfCounter* _classbytes_loaded;
41 static PerfCounter* _classbytes_unloaded;
42
43 // Counters for classes loaded from shared archive
44 static PerfCounter* _shared_classes_loaded_count;
45 static PerfCounter* _shared_classes_unloaded_count;
46 static PerfCounter* _shared_classbytes_loaded;
47 static PerfCounter* _shared_classbytes_unloaded;
48
49 static PerfVariable* _class_methods_size;
50
51 static size_t compute_class_size(instanceKlass* k);
123
124 public:
125 LoadedClassesEnumerator(Thread* cur_thread);
126
127 int num_loaded_classes() { return _klass_handle_array->length(); }
128 KlassHandle get_klass(int index) { return _klass_handle_array->at(index); }
129
130 static void add_loaded_class(klassOop k) {
131 // FIXME: For now - don't include array klasses
132 // The spec is unclear at this point to count array klasses or not
133 // and also indirect creation of array of super class and secondaries
134 //
135 // for (klassOop l = k; l != NULL; l = Klass::cast(l)->array_klass_or_null()) {
136 // KlassHandle h(_current_thread, l);
137 // _loaded_classes->append(h);
138 // }
139 KlassHandle h(_current_thread, k);
140 _loaded_classes->append(h);
141 }
142 };
143
144 #endif // SHARE_VM_SERVICES_CLASSLOADINGSERVICE_HPP
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