1 /*	$OpenBSD: preemption.c,v 1.2 2001/09/20 16:43:15 todd Exp $	*/
2 /*
3  * Copyright (c) 1993, 1994, 1995, 1996 by Chris Provenzano and contributors,
4  * proven@mit.edu All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *	This product includes software developed by Chris Provenzano,
17  *	the University of California, Berkeley, and contributors.
18  * 4. Neither the name of Chris Provenzano, the University, nor the names of
19  *   contributors may be used to endorse or promote products derived
20  *   from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL CHRIS PROVENZANO, THE REGENTS OR
26  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
29  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
31  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  */
34 
35 /* ==== test_pthread_cond.c =========================================
36  * Copyright (c) 1993 by Chris Provenzano, proven@athena.mit.edu
37  *
38  * Description : Test pthread_cond(). Run this after test_create()
39  *
40  *  1.23 94/05/04 proven
41  *      -Started coding this file.
42  */
43 
44 #include <pthread.h>
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include "test.h"
48 
49 void *
50 new_thread(void * new_buf)
51 {
52 	int i;
53 
54 	printf("yielding:");
55 	for (i = 0; i < 10; i++) {
56 		printf(" %d", i);
57 		fflush(stdout);
58 		pthread_yield();
59 	}
60 	printf("\n");
61 	SUCCEED;
62 }
63 
64 int
65 main()
66 {
67 	pthread_t thread;
68 
69 	CHECKr(pthread_create(&thread, NULL, new_thread, NULL));
70 
71 	while(1)
72 		;
73 	PANIC("while");
74 }
75