Home | History | Annotate | Line # | Download | only in include
signal.h revision 1.11 
      1 /*	$NetBSD: signal.h,v 1.11 1997/11/29 18:38:20 kleink 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/cdefs.h>
     42 
     43 #if !defined(_ANSI_SOURCE)
     44 #include <sys/types.h>
     45 #endif
     46 
     47 #include <sys/signal.h>
     48 
     49 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
     50 extern __const char *__const sys_signame[_NSIG];
     51 extern __const char *__const sys_siglist[_NSIG];
     52 #endif
     53 
     54 __BEGIN_DECLS
     55 int	raise __P((int));
     56 #ifndef	_ANSI_SOURCE
     57 int	kill __P((pid_t, int));
     58 int	sigaction __P((int, const struct sigaction *, struct sigaction *));
     59 int	sigaddset __P((sigset_t *, int));
     60 int	sigdelset __P((sigset_t *, int));
     61 int	sigemptyset __P((sigset_t *));
     62 int	sigfillset __P((sigset_t *));
     63 int	sigismember __P((const sigset_t *, int));
     64 int	sigpending __P((sigset_t *));
     65 int	sigprocmask __P((int, const sigset_t *, sigset_t *));
     66 int	sigsuspend __P((const sigset_t *));
     67 
     68 #if defined(__GNUC__) && defined(__STDC__)
     69 extern __inline int sigaddset(sigset_t *set, int signo) {
     70 	extern int errno;
     71 
     72 	if (signo <= 0 || signo >= _NSIG) {
     73 		errno = 22;			/* EINVAL */
     74 		return -1;
     75 	}
     76 	*set |= (1 << ((signo)-1));		/* sigmask(signo) */
     77 	return (0);
     78 }
     79 
     80 extern __inline int sigdelset(sigset_t *set, int signo) {
     81 	extern int errno;
     82 
     83 	if (signo <= 0 || signo >= _NSIG) {
     84 		errno = 22;			/* EINVAL */
     85 		return -1;
     86 	}
     87 	*set &= ~(1 << ((signo)-1));		/* sigmask(signo) */
     88 	return (0);
     89 }
     90 
     91 extern __inline int sigismember(const sigset_t *set, int signo) {
     92 	extern int errno;
     93 
     94 	if (signo <= 0 || signo >= _NSIG) {
     95 		errno = 22;			/* EINVAL */
     96 		return -1;
     97 	}
     98 	return ((*set & (1 << ((signo)-1))) != 0);
     99 }
    100 #endif
    101 
    102 /* List definitions after function declarations, or Reiser cpp gets upset. */
    103 #define	sigemptyset(set)	(*(set) = 0, 0)
    104 #define	sigfillset(set)		(*(set) = ~(sigset_t)0, 0)
    105 
    106 #ifndef _POSIX_SOURCE
    107 int	killpg __P((pid_t, int));
    108 int	sigblock __P((int));
    109 int	siginterrupt __P((int, int));
    110 int	sigpause __P((int));
    111 int	sigreturn __P((struct sigcontext *));
    112 int	sigsetmask __P((int));
    113 int	sigstack __P((const struct sigstack *, struct sigstack *));
    114 int	sigvec __P((int, struct sigvec *, struct sigvec *));
    115 void	psignal __P((unsigned int, const char *));
    116 #ifdef __LIBC12_SOURCE__
    117 int	sigaltstack __P((const struct sigaltstack13 *, struct sigaltstack13 *));
    118 int	__sigaltstack14 __P((const stack_t *, stack_t *));
    119 #else
    120 int	sigaltstack __P((const stack_t *, stack_t *)) __RENAME(__sigaltstack14);
    121 #endif
    122 #endif	/* !_POSIX_SOURCE */
    123 #endif	/* !_ANSI_SOURCE */
    124 __END_DECLS
    125 
    126 #endif	/* !_USER_SIGNAL_H */
    127