Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/ui/tree/RevPtrsTreeNodeAdapter.java @ 11997:cd25d3be91c5
8012144: multiple SIGSEGVs fails on staxf
Summary: Forward port of 7u change to add additional fence() on RMO platforms, with a load_acquire on all platforms
Reviewed-by: dholmes, kvn
author | vladidan |
---|---|
date | Tue, 06 Aug 2013 20:01:40 -0400 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2002, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ package sun.jvm.hotspot.ui.tree; import java.util.*; import java.io.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.utilities.*; /** Who directly points to this node. */ public class RevPtrsTreeNodeAdapter extends FieldTreeNodeAdapter { private static FieldIdentifier fid = new NamedFieldIdentifier("_revPtrs"); private List children; public RevPtrsTreeNodeAdapter(Oop oop) { this(oop, false); } public RevPtrsTreeNodeAdapter(Oop oop, boolean treeTableMode) { super(fid, treeTableMode); children = VM.getVM().getRevPtrs().get(oop); } public int getChildCount() { return children != null ? children.size() : 0; } public SimpleTreeNode getChild(int index) { LivenessPathElement lpe = (LivenessPathElement)children.get(index); IndexableFieldIdentifier ifid = new IndexableFieldIdentifier(index); Oop oop = lpe.getObj(); if (oop != null) { return new OopTreeNodeAdapter(oop, ifid, getTreeTableMode()); } else { NamedFieldIdentifier nfi = (NamedFieldIdentifier)lpe.getField(); return new RootTreeNodeAdapter(nfi.getName(), ifid, getTreeTableMode()); } } public boolean isLeaf() { return false; } public int getIndexOfChild(SimpleTreeNode child) { FieldIdentifier id = ((FieldTreeNodeAdapter) child).getID(); IndexableFieldIdentifier ifid = (IndexableFieldIdentifier)id; return ifid.getIndex(); } public String getName() { return "<<Reverse pointers>>"; } public String getValue() { return ""; } }