ras2.c revision 1.5 
1/* $NetBSD: ras2.c,v 1.5 2004/01/18 16:47:06 martin Exp $ */
2
3/*-
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed by the NetBSD
18 *      Foundation, Inc. and its contributors.
19 * 4. Neither the name of The NetBSD Foundation nor the names of its
20 *    contributors may be used to endorse or promote products derived
21 *    from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36#include <errno.h>
37#include <stdio.h>
38#include <signal.h>
39#include <unistd.h>
40#include <sys/ras.h>
41#include <sys/time.h>
42#include <sys/wait.h>
43
44#define COUNT	10
45
46__volatile int handled = 0;
47__volatile int count = 0;
48struct itimerval itv;
49
50void handler(int);
51
52void
53handler(int sig)
54{
55
56	handled++;
57}
58
59int
60main(void)
61{
62	int rv;
63
64        signal(SIGVTALRM, handler);
65
66        itv.it_interval.tv_sec = 0;
67        itv.it_interval.tv_usec = 0;
68        itv.it_value.tv_sec = 10;
69        itv.it_value.tv_usec = 0;
70        setitimer(ITIMER_VIRTUAL, &itv, NULL);
71
72	if (rasctl((caddr_t)&&start, (caddr_t)&&end - (caddr_t)&&start,
73	    RAS_INSTALL) < 0) {
74		if (errno == EOPNOTSUPP) {
75			printf("RAS is not supported on this architecture\n");
76			return 0;
77		}
78		return (1);
79	}
80
81	if (fork() != 0) {
82		wait(&rv);
83		return (rv);
84	}
85
86	__insn_barrier();
87start:
88	count++;
89	if (count > COUNT)
90		goto end;
91
92	while (!handled) {
93		continue;
94	}
95end:
96	__insn_barrier();
97
98	return (handled != 0);
99}
100