Sun, 01 Apr 2012 17:04:26 -0400
Merge
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 */
25 #ifndef SHARE_VM_MEMORY_CLASSIFY_HPP
26 #define SHARE_VM_MEMORY_CLASSIFY_HPP
28 #include "oops/oop.inline.hpp"
30 typedef enum oop_type {
31 unknown_type,
32 instance_type,
33 instanceRef_type,
34 objArray_type,
35 symbol_type,
36 klass_type,
37 instanceKlass_type,
38 method_type,
39 constMethod_type,
40 methodData_type,
41 constantPool_type,
42 constantPoolCache_type,
43 typeArray_type,
44 compiledICHolder_type,
45 number_object_types
46 } object_type;
49 // Classify objects by type and keep counts.
50 // Print the count and space taken for each type.
53 class ClassifyObjectClosure : public ObjectClosure {
54 private:
56 static const char* object_type_name[number_object_types];
58 int total_object_count;
59 size_t total_object_size;
60 int object_count[number_object_types];
61 size_t object_size[number_object_types];
63 public:
64 ClassifyObjectClosure() { reset(); }
65 void reset();
66 void do_object(oop obj);
67 static object_type classify_object(oop obj, bool count);
68 size_t print();
69 };
72 // Count objects using the alloc_count field in the object's klass
73 // object.
75 class ClassifyInstanceKlassClosure : public ClassifyObjectClosure {
76 private:
77 int total_instances;
78 public:
79 ClassifyInstanceKlassClosure() { reset(); }
80 void reset();
81 void print();
82 void do_object(oop obj);
83 };
86 // Clear the alloc_count fields in all classes so that the count can be
87 // restarted.
89 class ClearAllocCountClosure : public ObjectClosure {
90 public:
91 void do_object(oop obj) {
92 if (obj->is_klass()) {
93 Klass* k = Klass::cast((klassOop)obj);
94 k->set_alloc_count(0);
95 }
96 }
97 };
99 #endif // SHARE_VM_MEMORY_CLASSIFY_HPP