/*
* Copyright (c) 2004, 2010, 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.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.utilities.*;
import sun.jvm.hotspot.code.*;
import sun.jvm.hotspot.ui.classbrowser.*;
/** Finds a given (Address) value in the code cache. Only intended for use
in a debugging system. */
public class FindInCodeCachePanel extends SAPanel {
private Visitor iterator;
private long usedSize;
private long iterated;
private Address value;
private ProgressBarPanel progressBar;
private HistoryComboBox addressField;
private JButton findButton;
private SAEditorPane contentEditor;
class Visitor implements CodeCacheVisitor {
Address base;
StringBuffer result;
boolean searching;
public void prologue(Address start, Address end) {
searching = true;
base = start;
usedSize = end.minus(start);
iterated = 0;
result = new StringBuffer();
clearResultWindow();
}
public void visit(CodeBlob blob) {
Address begin = blob.headerBegin();
Address end = begin.addOffsetTo(blob.getSize());
long addressSize = VM.getVM().getAddressSize();
boolean found = false;
while (!found && begin.lessThan(end)) {
Address val = begin.getAddressAt(0);
if (AddressOps.equal(val, value)) {
reportResult(result, blob);
found = true;
}
begin = begin.addOffsetTo(addressSize);
}
iterated = end.minus(base);;
updateProgressBar(null);
}
public void epilogue() {
}
public void cleanup() {
iterated = 0;
updateProgressBar(result);
searching = false;
result = null;
}
private void search() {
// Parse text
Address val = null;
try {
val = VM.getVM().getDebugger().parseAddress(addressField.getText());
} catch (Exception ex) {
contentEditor.setText("<b>Error parsing address</b>");
return;
}
// make sure we don't start up multiple search threads in parallel
synchronized (iterator) {
if (searching && value.equals(val)) {
return;
}
value = val;
contentEditor.setText("");
findButton.setEnabled(false);
System.out.println("Searching " + value);
java.lang.Thread t = new java.lang.Thread(new Runnable() {
public void run() {
synchronized (iterator) {
try {
VM.getVM().getCodeCache().iterate(iterator);
} finally {
iterator.cleanup();
}
}
}
});
t.start();
}
}
}
public FindInCodeCachePanel() {
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);
iterator = new Visitor();
findButton = new JButton("Find");
ActionListener listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
iterator.search();
}
};
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);
contentEditor = new SAEditorPane();
HyperlinkListener hyperListener = new HyperlinkListener() {
public void hyperlinkUpdate(HyperlinkEvent e) {
if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
String description = e.getDescription();
int index = description.indexOf(':');
if (index != -1) {
String item = description.substring(0, index);
if (item.equals("blob")) {
Address blob = VM.getVM().getDebugger().parseAddress(description.substring(index + 1));
showCodeViewer(blob);
}
}
}
}
};
contentEditor.addHyperlinkListener(hyperListener);
JScrollPane scroller = new JScrollPane(contentEditor);
add(scroller, BorderLayout.CENTER);
}
private void reportResult(StringBuffer result, CodeBlob blob) {
result.append("<a href='blob:");
result.append(blob.contentBegin().toString());
result.append("'>");
result.append(blob.getName());
result.append("@");
result.append(blob.contentBegin());
result.append("</a><br>");
}
private void clearResultWindow() {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
contentEditor.setText("");
}
});
}
private void updateProgressBar(final StringBuffer result) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
progressBar.setValue((double) iterated / (double) usedSize);
if (result != null) {
String s = "<html> <head> </head> <body>\n" + result + " </body> </html>";
contentEditor.setText(s);
findButton.setEnabled(true);
}
}
});
}
}