1 /*
   2  * Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 package sun.jvm.hotspot.tools;
  26 
  27 import java.io.*;


  28 import sun.jvm.hotspot.debugger.JVMDebugger;
  29 import sun.jvm.hotspot.runtime.*;
  30 
  31 public class JSnap extends Tool {
  32 


  33     public JSnap() {
  34         super();
  35     }
  36 
  37     public JSnap(JVMDebugger d) {
  38         super(d);
  39     }
  40 
  41     public void run() {
  42         final PrintStream out = System.out;
  43         if (PerfMemory.initialized()) {
  44             PerfDataPrologue prologue = PerfMemory.prologue();
  45             if (prologue.accessible()) {
  46                 PerfMemory.iterate(new PerfMemory.PerfDataEntryVisitor() {
  47                         public boolean visit(PerfDataEntry pde) {
  48                             if (pde.supported()) {
  49                                 out.print(pde.name());
  50                                 out.print('=');
  51                                 out.println(pde.valueAsString());
  52                             }
  53                             // goto next entry
  54                             return true;
  55                         }
  56                     });
  57             } else {
  58                 out.println("PerfMemory is not accessible");
  59             }
  60         } else {
  61             out.println("PerfMemory is not initialized");
  62         }
  63     }
  64 






  65     public static void main(String[] args) {
  66         JSnap js = new JSnap();










  67         js.execute(args);
  68     }
  69 }
--- EOF ---