Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/tools/JSnap.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
---|---|
date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/tools/JSnap.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,60 @@ +/* + * 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.tools; + +import java.io.*; +import sun.jvm.hotspot.runtime.*; + +public class JSnap extends Tool { + public void run() { + final PrintStream out = System.out; + if (PerfMemory.initialized()) { + PerfDataPrologue prologue = PerfMemory.prologue(); + if (prologue.accessible()) { + PerfMemory.iterate(new PerfMemory.PerfDataEntryVisitor() { + public boolean visit(PerfDataEntry pde) { + if (pde.supported()) { + out.print(pde.name()); + out.print('='); + out.println(pde.valueAsString()); + } + // goto next entry + return true; + } + }); + } else { + out.println("PerfMemory is not accessible"); + } + } else { + out.println("PerfMemory is not initialized"); + } + } + + public static void main(String[] args) { + JSnap js = new JSnap(); + js.start(args); + js.stop(); + } +}