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
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--- /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();
+    }
+}