xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/speculation/tst.SpeculationCommit.d (revision 73b80b821da76082173547dd650e417f6916eb8b)
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 /*
28  * ASSERTION: Test the normal behavior of speculate() and commit().
29  *
30  * SECTION: Speculative Tracing/Committing a Speculation;
31  *	Actions and Subroutines/speculation();
32  *	Options and Tunables/cleanrate
33  *
34  */
35 #pragma D option quiet
36 #pragma D option cleanrate=2000hz
37 
38 BEGIN
39 {
40 	self->var = speculation();
41 	printf("Speculation ID: %d\n", self->var);
42 	self->speculate = 0;
43 	self->commit = 0;
44 }
45 
46 BEGIN
47 /1 > self->speculate/
48 {
49 	speculate(self->var);
50 	self->speculate++;
51 	printf("Called speculate on id: %d\n", self->var);
52 }
53 
54 BEGIN
55 /1 <= self->speculate/
56 {
57 	commit(self->var);
58 	self->commit++;
59 }
60 
61 BEGIN
62 /(1 == self->commit)/
63 {
64 	printf("Succesfully tested buffer commit\n");
65 	exit(0);
66 }
67 
68 BEGIN
69 /(0 == self->commit)/
70 {
71 	printf("Failed to commit buffer\n");
72 	exit(1);
73 }
74