xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/speculation/tst.SpeculationCommit.d (revision 67e3a03ed4a2813074d36330f062ed6e593a4937)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * ASSERTION: Test the normal behavior of speculate() and commit().
31  *
32  * SECTION: Speculative Tracing/Committing a Speculation;
33  *	Actions and Subroutines/speculation();
34  *	Options and Tunables/cleanrate
35  *
36  */
37 #pragma D option quiet
38 #pragma D option cleanrate=2000hz
39 
40 BEGIN
41 {
42 	self->var = speculation();
43 	printf("Speculation ID: %d\n", self->var);
44 	self->speculate = 0;
45 	self->commit = 0;
46 }
47 
48 BEGIN
49 /1 > self->speculate/
50 {
51 	speculate(self->var);
52 	self->speculate++;
53 	printf("Called speculate on id: %d\n", self->var);
54 }
55 
56 BEGIN
57 /1 <= self->speculate/
58 {
59 	commit(self->var);
60 	self->commit++;
61 }
62 
63 BEGIN
64 /(1 == self->commit)/
65 {
66 	printf("Succesfully tested buffer commit\n");
67 	exit(0);
68 }
69 
70 BEGIN
71 /(0 == self->commit)/
72 {
73 	printf("Failed to commit buffer\n");
74 	exit(1);
75 }
76