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Annotation of src/include/signal.h, Revision 1.2

1.2     ! niklas      1: /*     $OpenBSD$       */
        !             2: /*     $NetBSD: signal.h,v 1.8 1996/02/29 00:04:57 jtc Exp $   */
1.1       deraadt     3:
                      4: /*-
                      5:  * Copyright (c) 1991, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *     This product includes software developed by the University of
                     19:  *     California, Berkeley and its contributors.
                     20:  * 4. Neither the name of the University nor the names of its contributors
                     21:  *    may be used to endorse or promote products derived from this software
                     22:  *    without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34:  * SUCH DAMAGE.
                     35:  *
                     36:  *     @(#)signal.h    8.3 (Berkeley) 3/30/94
                     37:  */
                     38:
                     39: #ifndef _USER_SIGNAL_H
                     40: #define _USER_SIGNAL_H
                     41:
                     42: #include <sys/cdefs.h>
                     43: #include <sys/signal.h>
                     44:
                     45: #if !defined(_ANSI_SOURCE)
                     46: #include <sys/types.h>
                     47: #endif
                     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 *));
1.2     ! niklas    114: int    sigaltstack __P((const struct sigaltstack *, struct sigaltstack *));
1.1       deraadt   115: int    sigvec __P((int, struct sigvec *, struct sigvec *));
                    116: void   psignal __P((unsigned int, const char *));
                    117: #endif /* !_POSIX_SOURCE */
                    118: #endif /* !_ANSI_SOURCE */
                    119: __END_DECLS
                    120:
                    121: #endif /* !_USER_SIGNAL_H */