Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/bugspot/tree/ObjectTreeNodeAdapter.java @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
author | coleenp |
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date | Thu, 27 Jan 2011 16:11:27 -0800 |
parents | c18cbe5936b8 |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.bugspot.tree; | |
26 | |
27 import java.io.*; | |
28 import sun.jvm.hotspot.debugger.*; | |
29 import sun.jvm.hotspot.debugger.cdbg.*; | |
30 import sun.jvm.hotspot.ui.tree.SimpleTreeNode; | |
31 | |
32 /** An adapter class which allows C/C++ objects to be displayed in a | |
33 tree via the SimpleTreeNode interface. */ | |
34 | |
35 public class ObjectTreeNodeAdapter extends FieldTreeNodeAdapter { | |
36 // Address of object | |
37 private Address addr; | |
38 | |
39 /** The address may be null (for object fields of objcets which are | |
40 null). The FieldIdentifier should not be null. treeTableMode | |
41 defaults to false. */ | |
42 public ObjectTreeNodeAdapter(Address addr, FieldIdentifier id) { | |
43 this(addr, id, false); | |
44 } | |
45 | |
46 /** The address may be null (for object fields of objcets which are | |
47 null). The FieldIdentifier should not be null. */ | |
48 public ObjectTreeNodeAdapter(Address addr, FieldIdentifier id, boolean treeTableMode) { | |
49 super(id, treeTableMode); | |
50 this.addr = addr; | |
51 } | |
52 | |
53 public int getChildCount() { | |
54 if (addr == null) { | |
55 return 0; | |
56 } | |
57 | |
58 Counter c = new Counter(); | |
59 getType().iterateObject(addr, c); | |
60 return c.getNumFields(); | |
61 } | |
62 | |
63 public SimpleTreeNode getChild(int index) { | |
64 if (addr == null) { | |
65 return null; | |
66 } | |
67 | |
68 Fetcher f = new Fetcher(index); | |
69 getType().iterateObject(addr, f); | |
70 return f.getChild(); | |
71 } | |
72 | |
73 public boolean isLeaf() { | |
74 return (addr == null); | |
75 } | |
76 | |
77 public int getIndexOfChild(SimpleTreeNode child) { | |
78 FieldIdentifier id = ((FieldTreeNodeAdapter) child).getID(); | |
79 Finder f = new Finder(id); | |
80 getType().iterateObject(addr, f); | |
81 return f.getIndex(); | |
82 } | |
83 | |
84 public String getValue() { | |
85 if (addr != null) { | |
86 return addr.toString(); | |
87 } | |
88 return "NULL"; | |
89 } | |
90 | |
91 /** Should be used only once, then have the number of fields | |
92 fetched. */ | |
93 static class Counter extends DefaultObjectVisitor { | |
94 private int numFields; | |
95 | |
96 public int getNumFields() { | |
97 return numFields; | |
98 } | |
99 | |
100 public void doBit(FieldIdentifier f, long val) { ++numFields; } | |
101 public void doInt(FieldIdentifier f, long val) { ++numFields; } | |
102 public void doEnum(FieldIdentifier f, long val, String enumName) { ++numFields; } | |
103 public void doFloat(FieldIdentifier f, float val) { ++numFields; } | |
104 public void doDouble(FieldIdentifier f, double val) { ++numFields; } | |
105 public void doPointer(FieldIdentifier f, Address val) { ++numFields; } | |
106 public void doArray(FieldIdentifier f, Address val) { ++numFields; } | |
107 public void doRef(FieldIdentifier f, Address val) { ++numFields; } | |
108 public void doCompound(FieldIdentifier f, Address addr) { ++numFields; } | |
109 } | |
110 | |
111 /** Creates a new SimpleTreeNode for the given field. */ | |
112 class Fetcher extends DefaultObjectVisitor { | |
113 private int index; | |
114 private int curField; | |
115 private SimpleTreeNode child; | |
116 | |
117 public Fetcher(int index) { | |
118 this.index = index; | |
119 } | |
120 | |
121 public SimpleTreeNode getChild() { | |
122 return child; | |
123 } | |
124 | |
125 public void doBit(FieldIdentifier f, long val) { | |
126 if (curField == index) { | |
127 child = new LongTreeNodeAdapter(val, f, getTreeTableMode()); | |
128 } | |
129 ++curField; | |
130 } | |
131 | |
132 public void doInt(FieldIdentifier f, long val) { | |
133 if (curField == index) { | |
134 child = new LongTreeNodeAdapter(val, f, getTreeTableMode()); | |
135 } | |
136 ++curField; | |
137 } | |
138 | |
139 public void doEnum(FieldIdentifier f, long val, String enumName) { | |
140 if (curField == index) { | |
141 child = new EnumTreeNodeAdapter(enumName, val, f, getTreeTableMode()); | |
142 } | |
143 ++curField; | |
144 } | |
145 | |
146 public void doFloat(FieldIdentifier f, float val) { | |
147 if (curField == index) { | |
148 child = new FloatTreeNodeAdapter(val, f, getTreeTableMode()); | |
149 } | |
150 ++curField; | |
151 } | |
152 | |
153 public void doDouble(FieldIdentifier f, double val) { | |
154 if (curField == index) { | |
155 child = new DoubleTreeNodeAdapter(val, f, getTreeTableMode()); | |
156 } | |
157 ++curField; | |
158 } | |
159 | |
160 public void doPointer(FieldIdentifier f, Address val) { | |
161 if (curField == index) { | |
162 child = new AddressTreeNodeAdapter(val, f, getTreeTableMode()); | |
163 } | |
164 ++curField; | |
165 } | |
166 | |
167 public void doArray(FieldIdentifier f, Address val) { | |
168 if (curField == index) { | |
169 child = new AddressTreeNodeAdapter(val, f, getTreeTableMode()); | |
170 } | |
171 ++curField; | |
172 } | |
173 | |
174 public void doRef(FieldIdentifier f, Address val) { | |
175 if (curField == index) { | |
176 child = new AddressTreeNodeAdapter(val, f, getTreeTableMode()); | |
177 } | |
178 ++curField; | |
179 } | |
180 | |
181 public void doCompound(FieldIdentifier f, Address val) { | |
182 if (curField == index) { | |
183 child = new ObjectTreeNodeAdapter(val, f, getTreeTableMode()); | |
184 } | |
185 ++curField; | |
186 } | |
187 } | |
188 | |
189 /** Finds the index of the given FieldIdentifier. */ | |
190 static class Finder extends DefaultObjectVisitor { | |
191 private FieldIdentifier id; | |
192 private int curField; | |
193 private int index = -1; | |
194 | |
195 public Finder(FieldIdentifier id) { | |
196 this.id = id; | |
197 } | |
198 | |
199 /** Returns -1 if not found */ | |
200 public int getIndex() { | |
201 return index; | |
202 } | |
203 | |
204 public void doBit(FieldIdentifier f, long val) { if (f.equals(id)) { index = curField; } ++curField; } | |
205 public void doInt(FieldIdentifier f, long val) { if (f.equals(id)) { index = curField; } ++curField; } | |
206 public void doEnum(FieldIdentifier f, long val, | |
207 String enumName) { if (f.equals(id)) { index = curField; } ++curField; } | |
208 public void doFloat(FieldIdentifier f, float val) { if (f.equals(id)) { index = curField; } ++curField; } | |
209 public void doDouble(FieldIdentifier f, double val) { if (f.equals(id)) { index = curField; } ++curField; } | |
210 public void doPointer(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } | |
211 public void doArray(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } | |
212 public void doRef(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } | |
213 public void doCompound(FieldIdentifier f, | |
214 Address val) { if (f.equals(id)) { index = curField; } ++curField; } | |
215 } | |
216 } |