| /* |
| * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * - Neither the name of Oracle nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /* |
| * This file defines heapdump function to heap dump |
| * in binary format. User can call this function |
| * based on events. For example, a timer thread can |
| * keep checking heap threshold and depending on |
| * specific expected threshold value, it can call |
| * heapdump to dump the keep. File name can contain |
| * timestamp so that multiple heapdumps can be generated |
| * for the same process. |
| */ |
| |
| /** |
| * Function to dump heap in binary format. |
| * |
| * @param file heap dump file name [optional] |
| */ |
| function heapdump(file) { |
| // no file specified, show file open dialog |
| if (file == undefined) { |
| file = fileDialog(); |
| // check whether user cancelled the dialog |
| if (file == null) return; |
| } |
| |
| /* |
| * Get HotSpotDiagnostic MBean and wrap it as convenient |
| * script wrapper using 'mbean' function. Instead of using |
| * MBean proxies 'mbean' function creates a script wrapper |
| * that provides similar convenience but uses explicit |
| * invocation behind the scene. This implies that mbean |
| * wrapper would the same for dynamic MBeans as well. |
| */ |
| var diagBean = mbean("com.sun.management:type=HotSpotDiagnostic"); |
| |
| // dump the heap in the file |
| diagBean.dumpHeap(file, true); |
| } |
