xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/speculation/err.NegativeBufSize.d (revision 4c87aefe8930bd07275b8dd2e96ea5f24d93a52e)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * ASSERTION:
31  * Verify the behavior of variations in bufsize.
32  *
33  * SECTION: Speculative Tracing/Options and Tuning;
34  *	Options and Tunables/bufsize
35  *
36  * NOTES: This test behaves differently depending on the values
37  * assigned to bufsize.
38  * 1. 0 > bufsize.
39  * 2. 0 == bufsize.
40  * 3. 0 < bufsize <= 7
41  * 4. 8 <= bufsize <= 31
42  * 5. 32 <= bufsize <= 47
43  * 6. 48 <= bufsize <= 71
44  * 7. 72 <= bufsize
45  */
46 
47 #pragma D option quiet
48 #pragma D option bufsize=-72
49 
50 BEGIN
51 {
52 	self->speculateFlag = 0;
53 	self->commitFlag = 0;
54 	self->spec = speculation();
55 	printf("Speculative buffer ID: %d\n", self->spec);
56 }
57 
58 BEGIN
59 {
60 	speculate(self->spec);
61 	printf("Lots of data\n");
62 	printf("Has to be crammed into this buffer\n");
63 	printf("Until it overflows\n");
64 	printf("And causes flops\n");
65 	self->speculateFlag++;
66 
67 }
68 
69 BEGIN
70 /1 <= self->speculateFlag/
71 {
72 	commit(self->spec);
73 	self->commitFlag++;
74 }
75 
76 BEGIN
77 /1 <= self->commitFlag/
78 {
79 	printf("Statement was executed\n");
80 	exit(0);
81 }
82 
83 BEGIN
84 /1 > self->commitFlag/
85 {
86 	printf("Statement wasn't executed\n");
87 	exit(1);
88 }
89