| /* |
| * Copyright (c) 2002, 2008, 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; |
| |
| import java.util.*; |
| import java.io.*; |
| import java.awt.*; |
| import java.awt.event.*; |
| import javax.swing.*; |
| import javax.swing.text.*; |
| |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.oops.*; |
| import sun.jvm.hotspot.runtime.*; |
| import sun.jvm.hotspot.utilities.*; |
| |
| /** Finds a given (Address) value in the heap. Only intended for use |
| in a debugging system. */ |
| |
| public class FindInHeapPanel extends JPanel { |
| private RawHeapVisitor iterator; |
| private long addressSize; |
| private long usedSize; |
| private long iterated; |
| private Address value; |
| private ProgressBarPanel progressBar; |
| private HistoryComboBox addressField; |
| private JButton findButton; |
| private JTextArea textArea; |
| private ArrayList updates; |
| private double lastFrac; |
| |
| static final double minUpdateFraction = 0.05; |
| |
| public FindInHeapPanel() { |
| super(); |
| |
| setLayout(new BorderLayout()); |
| |
| JPanel topPanel = new JPanel(); |
| topPanel.setLayout(new BoxLayout(topPanel, BoxLayout.Y_AXIS)); |
| |
| JPanel panel = new JPanel(); |
| panel.setLayout(new BoxLayout(panel, BoxLayout.X_AXIS)); |
| panel.add(new JLabel("Address to search for:")); |
| |
| addressField = new HistoryComboBox(); |
| panel.add(addressField); |
| |
| addressSize = VM.getVM().getAddressSize(); |
| |
| iterator = new RawHeapVisitor() { |
| boolean error = false; |
| |
| public void prologue(long used) { |
| usedSize = used; |
| iterated = 0; |
| lastFrac = 0; |
| error = false; |
| updates = new ArrayList(); |
| } |
| |
| public void visitAddress(Address addr) { |
| if (error) return; |
| |
| Address val = addr.getAddressAt(0); |
| if (AddressOps.equal(val, value)) { |
| error = reportResult(addr); |
| } |
| iterated += addressSize; |
| updateProgressBar(); |
| } |
| public void visitCompOopAddress(Address addr) { |
| if (error) return; |
| |
| Address val = addr.getCompOopAddressAt(0); |
| if (AddressOps.equal(val, value)) { |
| error = reportResult(addr); |
| } |
| iterated += addressSize; |
| updateProgressBar(); |
| |
| } |
| public void epilogue() { |
| iterated = 0; |
| updateProgressBar(); |
| findButton.setEnabled(true); |
| } |
| }; |
| |
| findButton = new JButton("Find"); |
| ActionListener listener = new ActionListener() { |
| public void actionPerformed(ActionEvent e) { |
| clearResultWindow(); |
| // Parse text |
| try { |
| Address val = VM.getVM().getDebugger().parseAddress(addressField.getText()); |
| value = val; |
| |
| findButton.setEnabled(false); |
| |
| java.lang.Thread t = new java.lang.Thread(new Runnable() { |
| public void run() { |
| try { |
| VM.getVM().getObjectHeap().iterateRaw(iterator); |
| } finally { |
| SwingUtilities.invokeLater(new Runnable() { |
| public void run() { |
| findButton.setEnabled(true); |
| } |
| }); |
| } |
| } |
| }); |
| t.start(); |
| } catch (Exception ex) { |
| textArea.setText("Error parsing address"); |
| } |
| } |
| }; |
| panel.add(findButton); |
| findButton.addActionListener(listener); |
| addressField.addActionListener(listener); |
| topPanel.add(panel); |
| |
| progressBar = new ProgressBarPanel(ProgressBarPanel.HORIZONTAL, "Search progress:"); |
| topPanel.add(progressBar); |
| |
| add(topPanel, BorderLayout.NORTH); |
| |
| textArea = new JTextArea(); |
| JScrollPane scroller = new JScrollPane(textArea); |
| add(scroller, BorderLayout.CENTER); |
| } |
| |
| private boolean pendingUpdate = false; |
| |
| private boolean reportResult(final Address addr) { |
| synchronized (this) { |
| try { |
| updates.add("found at " + addr + "\n"); |
| if (!pendingUpdate) { |
| pendingUpdate = true; |
| SwingUtilities.invokeLater(new Runnable() { |
| public void run() { |
| updateResultWindow(); |
| } |
| }); |
| } |
| } catch (Throwable t) { |
| t.printStackTrace(); |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| private void clearResultWindow() { |
| SwingUtilities.invokeLater(new Runnable() { |
| public void run() { |
| |
| Document d = textArea.getDocument(); |
| try { |
| d.remove(0, d.getLength()); |
| } catch (BadLocationException e) { |
| } |
| } |
| }); |
| } |
| |
| private synchronized void updateResultWindow() { |
| if (updates.size() > 0) { |
| Iterator i = updates.iterator(); |
| while (i.hasNext()) { |
| textArea.append((String)i.next()); |
| } |
| updates = new ArrayList();; |
| } |
| pendingUpdate = false; |
| } |
| |
| private void invokeInDispatchThread(Runnable runnable) { |
| if (EventQueue.isDispatchThread()) { |
| runnable.run(); |
| } else { |
| SwingUtilities.invokeLater(runnable); |
| } |
| } |
| |
| private void updateProgressBar() { |
| final double frac = (double) iterated / (double) usedSize; |
| if (frac == 0.0 || (frac - lastFrac > minUpdateFraction)) { |
| lastFrac = frac; |
| if (iterated > usedSize) { |
| System.out.println("iterated " + iterated + " usedSize " + usedSize); |
| } |
| SwingUtilities.invokeLater(new Runnable() { |
| public void run() { |
| progressBar.setValue(frac); |
| } |
| }); |
| } |
| } |
| } |