0
|
1 /*
|
|
2 * Copyright 2003 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 package sun.jvm.hotspot.gc_implementation.parallelScavenge;
|
|
26
|
|
27 import java.io.*;
|
|
28 import java.util.*;
|
|
29
|
|
30 import sun.jvm.hotspot.debugger.*;
|
|
31 import sun.jvm.hotspot.gc_interface.*;
|
|
32 import sun.jvm.hotspot.runtime.*;
|
|
33 import sun.jvm.hotspot.types.*;
|
|
34
|
|
35 public class ParallelScavengeHeap extends CollectedHeap {
|
|
36 static {
|
|
37 VM.registerVMInitializedObserver(new Observer() {
|
|
38 public void update(Observable o, Object data) {
|
|
39 initialize(VM.getVM().getTypeDataBase());
|
|
40 }
|
|
41 });
|
|
42 }
|
|
43
|
|
44 private static synchronized void initialize(TypeDataBase db) {
|
|
45 Type type = db.lookupType("ParallelScavengeHeap");
|
|
46 youngGenField = type.getAddressField("_young_gen");
|
|
47 oldGenField = type.getAddressField("_old_gen");
|
|
48 permGenField = type.getAddressField("_perm_gen");
|
|
49 }
|
|
50
|
|
51 public ParallelScavengeHeap(Address addr) {
|
|
52 super(addr);
|
|
53 }
|
|
54
|
|
55 // Fields
|
|
56 private static AddressField youngGenField;
|
|
57 private static AddressField oldGenField;
|
|
58 private static AddressField permGenField;
|
|
59
|
|
60 // Accessors
|
|
61 public PSYoungGen youngGen() {
|
|
62 return (PSYoungGen) VMObjectFactory.newObject(PSYoungGen.class, youngGenField.getValue());
|
|
63 }
|
|
64
|
|
65 public PSOldGen oldGen() {
|
|
66 return (PSOldGen) VMObjectFactory.newObject(PSOldGen.class, oldGenField.getValue());
|
|
67 }
|
|
68
|
|
69 public PSPermGen permGen() {
|
|
70 return (PSPermGen) VMObjectFactory.newObject(PSPermGen.class, permGenField.getValue());
|
|
71 }
|
|
72
|
|
73 public long capacity() {
|
|
74 return youngGen().capacity() + oldGen().capacity();
|
|
75 }
|
|
76
|
|
77 public long used() {
|
|
78 return youngGen().used() + oldGen().used();
|
|
79 }
|
|
80
|
|
81 public boolean isIn(Address a) {
|
|
82 if (youngGen().isIn(a)) {
|
|
83 return true;
|
|
84 }
|
|
85
|
|
86 if (oldGen().isIn(a)) {
|
|
87 return true;
|
|
88 }
|
|
89
|
|
90 if (permGen().isIn(a)) {
|
|
91 return true;
|
|
92 }
|
|
93
|
|
94 return false;
|
|
95 }
|
|
96
|
|
97 public CollectedHeapName kind() {
|
|
98 return CollectedHeapName.PARALLEL_SCAVENGE_HEAP;
|
|
99 }
|
|
100
|
|
101 public void printOn(PrintStream tty) {
|
|
102 tty.print("ParallelScavengeHeap [ ");
|
|
103 youngGen().printOn(tty);
|
|
104 oldGen().printOn(tty);
|
|
105 permGen().printOn(tty);
|
|
106 tty.print(" ] ");
|
|
107 }
|
|
108 }
|