signal.h revision 1.4 
1/*	$NetBSD: signal.h,v 1.4 1995/01/05 06:01:18 jtc Exp $	*/
2
3/*-
4 * Copyright (c) 1991, 1993
5 *	The Regents of the University of California.  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 University of
18 *	California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 *	@(#)signal.h	8.3 (Berkeley) 3/30/94
36 */
37
38#ifndef _USER_SIGNAL_H
39#define _USER_SIGNAL_H
40
41#include <sys/types.h>
42#include <sys/cdefs.h>
43#include <sys/signal.h>
44
45#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
46extern __const char *__const sys_signame[NSIG];
47extern __const char *__const sys_siglist[NSIG];
48#endif
49
50__BEGIN_DECLS
51int	raise __P((int));
52#ifndef	_ANSI_SOURCE
53int	kill __P((pid_t, int));
54int	sigaction __P((int, const struct sigaction *, struct sigaction *));
55int	sigaddset __P((sigset_t *, int));
56int	sigdelset __P((sigset_t *, int));
57int	sigemptyset __P((sigset_t *));
58int	sigfillset __P((sigset_t *));
59int	sigismember __P((const sigset_t *, int));
60int	sigpending __P((sigset_t *));
61int	sigprocmask __P((int, const sigset_t *, sigset_t *));
62int	sigsuspend __P((const sigset_t *));
63
64#if defined(__GNUC__) && defined(__STDC__)
65extern __inline int sigaddset(sigset_t *set, int signo) {
66	extern int errno;
67
68	if (signo <= 0 || signo >= 32) {
69		errno = 22;			/* EINVAL */
70		return -1;
71	}
72	*set |= (1 << ((signo)-1));		/* sigmask(signo) */
73	return (0);
74}
75
76extern __inline int sigdelset(sigset_t *set, int signo) {
77	extern int errno;
78
79	if (signo <= 0 || signo >= 32) {
80		errno = 22;			/* EINVAL */
81		return -1;
82	}
83	*set &= ~(1 << ((signo)-1));		/* sigmask(signo) */
84	return (0);
85}
86
87extern __inline int sigismember(const sigset_t *set, int signo) {
88	extern int errno;
89
90	if (signo <= 0 || signo >= 32) {
91		errno = 22;			/* EINVAL */
92		return -1;
93	}
94	return ((*set & (1 << ((signo)-1))) != 0);
95}
96#endif
97
98/* List definitions after function declarations, or Reiser cpp gets upset. */
99#define	sigemptyset(set)	(*(set) = 0, 0)
100#define	sigfillset(set)		(*(set) = ~(sigset_t)0, 0)
101#ifndef _POSIX_SOURCE
102int	killpg __P((pid_t, int));
103int	sigblock __P((int));
104int	siginterrupt __P((int, int));
105int	sigpause __P((int));
106int	sigreturn __P((struct sigcontext *));
107int	sigsetmask __P((int));
108int	sigstack __P((const struct sigstack *, struct sigstack *));
109int	sigvec __P((int, struct sigvec *, struct sigvec *));
110void	psignal __P((unsigned int, const char *));
111#endif	/* !_POSIX_SOURCE */
112#endif	/* !_ANSI_SOURCE */
113__END_DECLS
114
115#endif	/* !_USER_SIGNAL_H */
116