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comparison agent/src/share/classes/sun/jvm/hotspot/oops/OopVisitor.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
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 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.
25 package sun.jvm.hotspot.oops; 25 package sun.jvm.hotspot.oops;
26 26
27 // An OopVisitor can be used to inspect all fields within an object. 27 // An OopVisitor can be used to inspect all fields within an object.
28 // Fields include vm fields, java fields, indexable fields. 28 // Fields include vm fields, java fields, indexable fields.
29 29
30 public interface OopVisitor { 30 public interface OopVisitor extends FieldVisitor {
31 // Called before visiting an object 31 // Called before visiting an object
32 public void prologue(); 32 public void prologue();
33 33
34 // Called after visiting an object 34 // Called after visiting an object
35 public void epilogue(); 35 public void epilogue();
36 36
37 public void setObj(Oop obj); 37 public void setObj(Oop obj);
38 38
39 // Returns the object being visited 39 // Returns the object being visited
40 public Oop getObj(); 40 public Oop getObj();
41
42 // Callback methods for each field type in an object
43 public void doOop(OopField field, boolean isVMField);
44 public void doOop(NarrowOopField field, boolean isVMField);
45 public void doByte(ByteField field, boolean isVMField);
46 public void doChar(CharField field, boolean isVMField);
47 public void doBoolean(BooleanField field, boolean isVMField);
48 public void doShort(ShortField field, boolean isVMField);
49 public void doInt(IntField field, boolean isVMField);
50 public void doLong(LongField field, boolean isVMField);
51 public void doFloat(FloatField field, boolean isVMField);
52 public void doDouble(DoubleField field, boolean isVMField);
53 public void doCInt(CIntField field, boolean isVMField);
54 }; 41 };