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DTraceInline.java
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/*
* Copyright (c) 2008, 2015, 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. Oracle designates this
* particular file as subject to the Classpath exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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 com.sun.btrace.samples;
import com.sun.btrace.annotations.*;
import static com.sun.btrace.BTraceUtils.*;
/*
* This sample demonstrates DTrace/BTrace integration.
* A one-liner D-script is started by BTrace client
* because of @DTrace annotation. In this example
* on new Java Thread starts, BTrace action raises a
* DTrace probe. The D-script prints mixed mode stack
* trace on receiving this probe.
*/
@DTrace("btrace$1:::event / copyinstr(arg0) == \"mstack\" / { jstack(); }")
@BTrace
public class DTraceInline {
@OnMethod(
clazz="java.lang.Thread",
method="start"
)
public static void newThread(Thread th) {
println(Threads.name(th));
D.probe("mstack", "");
}
}