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Annotation of src/include/signal.h, Revision 1.4

1.4     ! d           1: /*     $OpenBSD: signal.h,v 1.3 1996/09/20 07:27:50 deraadt Exp $      */
1.2       niklas      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/signal.h>
                     43:
                     44: #if !defined(_ANSI_SOURCE)
                     45: #include <sys/types.h>
                     46: #endif
                     47:
                     48: #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
                     49: extern __const char *__const sys_signame[_NSIG];
                     50: extern __const char *__const sys_siglist[_NSIG];
                     51: #endif
                     52:
                     53: __BEGIN_DECLS
                     54: int    raise __P((int));
                     55: #ifndef        _ANSI_SOURCE
                     56: int    kill __P((pid_t, int));
                     57: int    sigaction __P((int, const struct sigaction *, struct sigaction *));
                     58: int    sigaddset __P((sigset_t *, int));
                     59: int    sigdelset __P((sigset_t *, int));
                     60: int    sigemptyset __P((sigset_t *));
                     61: int    sigfillset __P((sigset_t *));
                     62: int    sigismember __P((const sigset_t *, int));
                     63: int    sigpending __P((sigset_t *));
                     64: int    sigprocmask __P((int, const sigset_t *, sigset_t *));
                     65: int    sigsuspend __P((const sigset_t *));
                     66:
                     67: #if defined(__GNUC__) && defined(__STDC__)
                     68: extern __inline int sigaddset(sigset_t *set, int signo) {
                     69:        extern int errno;
                     70:
                     71:        if (signo <= 0 || signo >= _NSIG) {
                     72:                errno = 22;                     /* EINVAL */
                     73:                return -1;
                     74:        }
                     75:        *set |= (1 << ((signo)-1));             /* sigmask(signo) */
                     76:        return (0);
                     77: }
                     78:
                     79: extern __inline int sigdelset(sigset_t *set, int signo) {
                     80:        extern int errno;
                     81:
                     82:        if (signo <= 0 || signo >= _NSIG) {
                     83:                errno = 22;                     /* EINVAL */
                     84:                return -1;
                     85:        }
                     86:        *set &= ~(1 << ((signo)-1));            /* sigmask(signo) */
                     87:        return (0);
                     88: }
                     89:
                     90: extern __inline int sigismember(const sigset_t *set, int signo) {
                     91:        extern int errno;
                     92:
                     93:        if (signo <= 0 || signo >= _NSIG) {
                     94:                errno = 22;                     /* EINVAL */
                     95:                return -1;
                     96:        }
                     97:        return ((*set & (1 << ((signo)-1))) != 0);
                     98: }
                     99: #endif
                    100:
                    101: /* List definitions after function declarations, or Reiser cpp gets upset. */
                    102: #define        sigemptyset(set)        (*(set) = 0, 0)
                    103: #define        sigfillset(set)         (*(set) = ~(sigset_t)0, 0)
                    104:
                    105: #ifndef _POSIX_SOURCE
                    106: int    killpg __P((pid_t, int));
                    107: int    sigblock __P((int));
                    108: int    siginterrupt __P((int, int));
                    109: int    sigpause __P((int));
                    110: int    sigreturn __P((struct sigcontext *));
                    111: int    sigsetmask __P((int));
                    112: int    sigstack __P((const struct sigstack *, struct sigstack *));
1.2       niklas    113: int    sigaltstack __P((const struct sigaltstack *, struct sigaltstack *));
1.1       deraadt   114: int    sigvec __P((int, struct sigvec *, struct sigvec *));
                    115: void   psignal __P((unsigned int, const char *));
1.4     ! d         116: int    sigwait __P((const sigset_t *, int *));
1.1       deraadt   117: #endif /* !_POSIX_SOURCE */
                    118: #endif /* !_ANSI_SOURCE */
                    119: __END_DECLS
                    120:
                    121: #endif /* !_USER_SIGNAL_H */