xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/buffering/tst.switch1.d (revision bb5e3b2f129cc39517b925419c22f69a378ec023)
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  *   Positive test for switch buffer policy.
32  *
33  * SECTION: Buffers and Buffering/switch Policy;
34  *	Buffers and Buffering/Buffer Sizes;
35  *	Options and Tunables/bufsize;
36  *	Options and Tunables/bufpolicy;
37  *	Options and Tunables/switchrate
38  */
39 
40 /*
41  * We assume that a printf() of an integer stores at least 8 bytes, and no more
42  * than 16 bytes.
43  */
44 #pragma D option bufpolicy=switch
45 #pragma D option bufsize=32
46 #pragma D option switchrate=500msec
47 #pragma D option quiet
48 
49 int n;
50 int i;
51 
52 tick-1sec
53 /n < 10/
54 {
55 	printf("%d\n", i);
56 	i++;
57 }
58 
59 tick-1sec
60 /n < 10/
61 {
62 	n++;
63 }
64 
65 tick-1sec
66 /n == 10/
67 {
68 	exit(0);
69 }
70