Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/bugspot/tree/ObjectTreeNodeAdapter.java @ 210:05712c37c828
6676016: ParallelOldGC leaks memory
Summary: ensure that GCTask threads release resource and handle memory
Reviewed-by: jmasa, chrisphi
author | jcoomes |
---|---|
date | Wed, 18 Jun 2008 18:36:47 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.bugspot.tree; import java.io.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.debugger.cdbg.*; import sun.jvm.hotspot.ui.tree.SimpleTreeNode; /** An adapter class which allows C/C++ objects to be displayed in a tree via the SimpleTreeNode interface. */ public class ObjectTreeNodeAdapter extends FieldTreeNodeAdapter { // Address of object private Address addr; /** The address may be null (for object fields of objcets which are null). The FieldIdentifier should not be null. treeTableMode defaults to false. */ public ObjectTreeNodeAdapter(Address addr, FieldIdentifier id) { this(addr, id, false); } /** The address may be null (for object fields of objcets which are null). The FieldIdentifier should not be null. */ public ObjectTreeNodeAdapter(Address addr, FieldIdentifier id, boolean treeTableMode) { super(id, treeTableMode); this.addr = addr; } public int getChildCount() { if (addr == null) { return 0; } Counter c = new Counter(); getType().iterateObject(addr, c); return c.getNumFields(); } public SimpleTreeNode getChild(int index) { if (addr == null) { return null; } Fetcher f = new Fetcher(index); getType().iterateObject(addr, f); return f.getChild(); } public boolean isLeaf() { return (addr == null); } public int getIndexOfChild(SimpleTreeNode child) { FieldIdentifier id = ((FieldTreeNodeAdapter) child).getID(); Finder f = new Finder(id); getType().iterateObject(addr, f); return f.getIndex(); } public String getValue() { if (addr != null) { return addr.toString(); } return "NULL"; } /** Should be used only once, then have the number of fields fetched. */ static class Counter extends DefaultObjectVisitor { private int numFields; public int getNumFields() { return numFields; } public void doBit(FieldIdentifier f, long val) { ++numFields; } public void doInt(FieldIdentifier f, long val) { ++numFields; } public void doEnum(FieldIdentifier f, long val, String enumName) { ++numFields; } public void doFloat(FieldIdentifier f, float val) { ++numFields; } public void doDouble(FieldIdentifier f, double val) { ++numFields; } public void doPointer(FieldIdentifier f, Address val) { ++numFields; } public void doArray(FieldIdentifier f, Address val) { ++numFields; } public void doRef(FieldIdentifier f, Address val) { ++numFields; } public void doCompound(FieldIdentifier f, Address addr) { ++numFields; } } /** Creates a new SimpleTreeNode for the given field. */ class Fetcher extends DefaultObjectVisitor { private int index; private int curField; private SimpleTreeNode child; public Fetcher(int index) { this.index = index; } public SimpleTreeNode getChild() { return child; } public void doBit(FieldIdentifier f, long val) { if (curField == index) { child = new LongTreeNodeAdapter(val, f, getTreeTableMode()); } ++curField; } public void doInt(FieldIdentifier f, long val) { if (curField == index) { child = new LongTreeNodeAdapter(val, f, getTreeTableMode()); } ++curField; } public void doEnum(FieldIdentifier f, long val, String enumName) { if (curField == index) { child = new EnumTreeNodeAdapter(enumName, val, f, getTreeTableMode()); } ++curField; } public void doFloat(FieldIdentifier f, float val) { if (curField == index) { child = new FloatTreeNodeAdapter(val, f, getTreeTableMode()); } ++curField; } public void doDouble(FieldIdentifier f, double val) { if (curField == index) { child = new DoubleTreeNodeAdapter(val, f, getTreeTableMode()); } ++curField; } public void doPointer(FieldIdentifier f, Address val) { if (curField == index) { child = new AddressTreeNodeAdapter(val, f, getTreeTableMode()); } ++curField; } public void doArray(FieldIdentifier f, Address val) { if (curField == index) { child = new AddressTreeNodeAdapter(val, f, getTreeTableMode()); } ++curField; } public void doRef(FieldIdentifier f, Address val) { if (curField == index) { child = new AddressTreeNodeAdapter(val, f, getTreeTableMode()); } ++curField; } public void doCompound(FieldIdentifier f, Address val) { if (curField == index) { child = new ObjectTreeNodeAdapter(val, f, getTreeTableMode()); } ++curField; } } /** Finds the index of the given FieldIdentifier. */ static class Finder extends DefaultObjectVisitor { private FieldIdentifier id; private int curField; private int index = -1; public Finder(FieldIdentifier id) { this.id = id; } /** Returns -1 if not found */ public int getIndex() { return index; } public void doBit(FieldIdentifier f, long val) { if (f.equals(id)) { index = curField; } ++curField; } public void doInt(FieldIdentifier f, long val) { if (f.equals(id)) { index = curField; } ++curField; } public void doEnum(FieldIdentifier f, long val, String enumName) { if (f.equals(id)) { index = curField; } ++curField; } public void doFloat(FieldIdentifier f, float val) { if (f.equals(id)) { index = curField; } ++curField; } public void doDouble(FieldIdentifier f, double val) { if (f.equals(id)) { index = curField; } ++curField; } public void doPointer(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } public void doArray(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } public void doRef(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } public void doCompound(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } } }