| /* |
| * Copyright (c) 2005, 2013, 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.tools; |
| |
| import sun.jvm.hotspot.utilities.HeapHprofBinWriter; |
| import sun.jvm.hotspot.debugger.JVMDebugger; |
| |
| import java.io.IOException; |
| |
| /* |
| * This tool is used by the JDK jmap utility to dump the heap of the target |
| * process/core as a HPROF binary file. It can also be used as a standalone |
| * tool if required. |
| */ |
| public class HeapDumper extends Tool { |
| |
| private static String DEFAULT_DUMP_FILE = "heap.bin"; |
| |
| private String dumpFile; |
| |
| public HeapDumper() { |
| this.dumpFile = DEFAULT_DUMP_FILE; |
| } |
| |
| public HeapDumper(String dumpFile) { |
| this.dumpFile = dumpFile; |
| } |
| |
| public HeapDumper(String dumpFile, JVMDebugger d) { |
| super(d); |
| this.dumpFile = dumpFile; |
| } |
| |
| @Override |
| public String getName() { |
| return "heapDumper"; |
| } |
| |
| protected void printFlagsUsage() { |
| System.out.println(" <no option>\tto dump heap to " + |
| DEFAULT_DUMP_FILE); |
| System.out.println(" -f <file>\tto dump heap to <file>"); |
| super.printFlagsUsage(); |
| } |
| |
| // use HeapHprofBinWriter to write the heap dump |
| public void run() { |
| System.out.println("Dumping heap to " + dumpFile + " ..."); |
| try { |
| new HeapHprofBinWriter().write(dumpFile); |
| System.out.println("Heap dump file created"); |
| } catch (IOException ioe) { |
| System.err.println(ioe.getMessage()); |
| } |
| } |
| |
| // JDK jmap utility will always invoke this tool as: |
| // HeapDumper -f <file> <args...> |
| public static void main(String args[]) { |
| HeapDumper dumper = new HeapDumper(); |
| dumper.runWithArgs(args); |
| } |
| |
| public void runWithArgs(String... args) { |
| if (args.length > 2) { |
| if (args[0].equals("-f")) { |
| this.dumpFile = args[1]; |
| String[] newargs = new String[args.length-2]; |
| System.arraycopy(args, 2, newargs, 0, args.length-2); |
| args = newargs; |
| } |
| } |
| |
| execute(args); |
| } |
| |
| } |