xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/buffering/tst.switch1.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 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*
28  * ASSERTION:
29  *   Positive test for switch buffer policy.
30  *
31  * SECTION: Buffers and Buffering/switch Policy;
32  *	Buffers and Buffering/Buffer Sizes;
33  *	Options and Tunables/bufsize;
34  *	Options and Tunables/bufpolicy;
35  *	Options and Tunables/switchrate
36  */
37 
38 /*
39  * We assume that a printf() of an integer stores at least 8 bytes, and no more
40  * than 16 bytes.
41  */
42 #pragma D option bufpolicy=switch
43 #pragma D option bufsize=32
44 #pragma D option switchrate=500msec
45 #pragma D option quiet
46 
47 int n;
48 int i;
49 
50 tick-1sec
51 /n < 10/
52 {
53 	printf("%d\n", i);
54 	i++;
55 }
56 
57 tick-1sec
58 /n < 10/
59 {
60 	n++;
61 }
62 
63 tick-1sec
64 /n == 10/
65 {
66 	exit(0);
67 }
68