diff agent/src/share/classes/sun/jvm/hotspot/ui/FindInCodeCachePanel.java @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/ui/FindInCodeCachePanel.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,221 @@
+/*
+ * Copyright 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.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.instructionsBegin().toString());
+    result.append("'>");
+    result.append(blob.getName());
+    result.append("@");
+    result.append(blob.instructionsBegin());
+    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);
+          }
+        }
+      });
+  }
+}