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#!/usr/sbin/dtrace -ws
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* ASSERTION:
* Destructive actions may never be speculative.
*
* SECTION: Speculative Tracing/Using a Speculation
* SECTION: dtrace(1M) Utility/ -w option
*/
#pragma D option quiet
BEGIN
{
i = 0;
}
profile:::tick-1sec
/i < 1/
{
var = speculation();
speculate(var);
printf("Speculation ID: %d", var);
stop();
i++;
}
profile:::tick-1sec
/1 == i/
{
exit(0);
}
ERROR
{
exit(0);
}
END
{
exit(0);
}
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