xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/pid/tst.fork.c (revision 543a8da84d26ec70222ecd1638b72c1e6c763275)
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 #include <unistd.h>
28 
29 int
30 waiting(volatile int *a)
31 {
32 	return (*a);
33 }
34 
35 int
36 go(void)
37 {
38 	int i, j, total = 0;
39 
40 	for (i = 0; i < 10; i++) {
41 		for (j = 0; j < 10; j++) {
42 			total += i * j;
43 		}
44 	}
45 
46 	return (total);
47 }
48 
49 int
50 main(int argc, char **argv)
51 {
52 	volatile int a = 0;
53 
54 	while (waiting(&a) == 0)
55 		continue;
56 
57 	(void) forkall();
58 	(void) go();
59 
60 	return (0);
61 }
62