Mercurial > hg > truffle
comparison src/share/vm/memory/classify.hpp @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
---|---|
date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:a61af66fc99e |
---|---|
1 /* | |
2 * Copyright 2003-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 typedef enum oop_type { | |
26 unknown_type, | |
27 instance_type, | |
28 instanceRef_type, | |
29 objArray_type, | |
30 symbol_type, | |
31 klass_type, | |
32 instanceKlass_type, | |
33 method_type, | |
34 constMethod_type, | |
35 methodData_type, | |
36 constantPool_type, | |
37 constantPoolCache_type, | |
38 typeArray_type, | |
39 compiledICHolder_type, | |
40 number_object_types | |
41 } object_type; | |
42 | |
43 | |
44 // Classify objects by type and keep counts. | |
45 // Print the count and space taken for each type. | |
46 | |
47 | |
48 class ClassifyObjectClosure : public ObjectClosure { | |
49 private: | |
50 | |
51 static const char* object_type_name[number_object_types]; | |
52 | |
53 int total_object_count; | |
54 size_t total_object_size; | |
55 int object_count[number_object_types]; | |
56 size_t object_size[number_object_types]; | |
57 | |
58 public: | |
59 ClassifyObjectClosure() { reset(); } | |
60 void reset(); | |
61 void do_object(oop obj); | |
62 static object_type classify_object(oop obj, bool count); | |
63 size_t print(); | |
64 }; | |
65 | |
66 | |
67 // Count objects using the alloc_count field in the object's klass | |
68 // object. | |
69 | |
70 class ClassifyInstanceKlassClosure : public ClassifyObjectClosure { | |
71 private: | |
72 int total_instances; | |
73 public: | |
74 ClassifyInstanceKlassClosure() { reset(); } | |
75 void reset(); | |
76 void print(); | |
77 void do_object(oop obj); | |
78 }; | |
79 | |
80 | |
81 // Clear the alloc_count fields in all classes so that the count can be | |
82 // restarted. | |
83 | |
84 class ClearAllocCountClosure : public ObjectClosure { | |
85 public: | |
86 void do_object(oop obj) { | |
87 if (obj->is_klass()) { | |
88 Klass* k = Klass::cast((klassOop)obj); | |
89 k->set_alloc_count(0); | |
90 } | |
91 } | |
92 }; |