xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/speculation/err.BufSizeVariations1.d (revision e82490700e19f1b8a2cef6102f4726144d281988)
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 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*
28  * Copyright (c) 2012 by Delphix. All rights reserved.
29  */
30 
31 
32 /*
33  * ASSERTION:
34  * Verify the behavior of variations in bufsize.
35  *
36  * SECTION: Speculative Tracing/Options and Tuning;
37  *	Options and Tunables/bufsize
38  *
39  * NOTES: This test behaves differently depending on the values
40  * assigned to bufsize.
41  */
42 
43 #pragma D option quiet
44 #pragma D option bufsize=49
45 
46 BEGIN
47 {
48 	self->speculateFlag = 0;
49 	self->commitFlag = 0;
50 	self->spec = speculation();
51 	printf("Speculative buffer ID: %d\n", self->spec);
52 }
53 
54 BEGIN
55 {
56 	speculate(self->spec);
57 	printf("Lots of data\n");
58 	printf("Has to be crammed into this buffer\n");
59 	printf("Until it overflows\n");
60 	printf("And causes flops\n");
61 	self->speculateFlag++;
62 
63 }
64 
65 BEGIN
66 /1 <= self->speculateFlag/
67 {
68 	commit(self->spec);
69 	self->commitFlag++;
70 }
71 
72 BEGIN
73 /1 <= self->commitFlag/
74 {
75 	printf("Statement was executed\n");
76 	exit(0);
77 }
78 
79 BEGIN
80 /1 > self->commitFlag/
81 {
82 	printf("Statement wasn't executed\n");
83 	exit(1);
84 }
85