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comparison agent/src/share/classes/sun/jvm/hotspot/gc_implementation/parallelScavenge/ParallelScavengeHeap.java @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents c18cbe5936b8
children
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
43 43
44 private static synchronized void initialize(TypeDataBase db) { 44 private static synchronized void initialize(TypeDataBase db) {
45 Type type = db.lookupType("ParallelScavengeHeap"); 45 Type type = db.lookupType("ParallelScavengeHeap");
46 youngGenField = type.getAddressField("_young_gen"); 46 youngGenField = type.getAddressField("_young_gen");
47 oldGenField = type.getAddressField("_old_gen"); 47 oldGenField = type.getAddressField("_old_gen");
48 permGenField = type.getAddressField("_perm_gen");
49 } 48 }
50 49
51 public ParallelScavengeHeap(Address addr) { 50 public ParallelScavengeHeap(Address addr) {
52 super(addr); 51 super(addr);
53 } 52 }
54 53
55 // Fields 54 // Fields
56 private static AddressField youngGenField; 55 private static AddressField youngGenField;
57 private static AddressField oldGenField; 56 private static AddressField oldGenField;
58 private static AddressField permGenField;
59 57
60 // Accessors 58 // Accessors
61 public PSYoungGen youngGen() { 59 public PSYoungGen youngGen() {
62 return (PSYoungGen) VMObjectFactory.newObject(PSYoungGen.class, youngGenField.getValue()); 60 return (PSYoungGen) VMObjectFactory.newObject(PSYoungGen.class, youngGenField.getValue());
63 } 61 }
64 62
65 public PSOldGen oldGen() { 63 public PSOldGen oldGen() {
66 return (PSOldGen) VMObjectFactory.newObject(PSOldGen.class, oldGenField.getValue()); 64 return (PSOldGen) VMObjectFactory.newObject(PSOldGen.class, oldGenField.getValue());
67 }
68
69 public PSPermGen permGen() {
70 return (PSPermGen) VMObjectFactory.newObject(PSPermGen.class, permGenField.getValue());
71 } 65 }
72 66
73 public long capacity() { 67 public long capacity() {
74 return youngGen().capacity() + oldGen().capacity(); 68 return youngGen().capacity() + oldGen().capacity();
75 } 69 }
85 79
86 if (oldGen().isIn(a)) { 80 if (oldGen().isIn(a)) {
87 return true; 81 return true;
88 } 82 }
89 83
90 if (permGen().isIn(a)) {
91 return true;
92 }
93
94 return false; 84 return false;
95 } 85 }
96 86
97 public CollectedHeapName kind() { 87 public CollectedHeapName kind() {
98 return CollectedHeapName.PARALLEL_SCAVENGE_HEAP; 88 return CollectedHeapName.PARALLEL_SCAVENGE_HEAP;
100 90
101 public void printOn(PrintStream tty) { 91 public void printOn(PrintStream tty) {
102 tty.print("ParallelScavengeHeap [ "); 92 tty.print("ParallelScavengeHeap [ ");
103 youngGen().printOn(tty); 93 youngGen().printOn(tty);
104 oldGen().printOn(tty); 94 oldGen().printOn(tty);
105 permGen().printOn(tty);
106 tty.print(" ] "); 95 tty.print(" ] ");
107 } 96 }
108 } 97 }