--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/ui/FindInHeapPanel.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,217 @@
+/*
+ * Copyright 2002-2004 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.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 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);
+          }
+        });
+    }
+  }
+}