1 /* $NetBSD: signal.h,v 1.8 1996/02/29 00:04:57 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/cdefs.h> 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 *)); 113 int sigaltstack __P((const struct sigaltstack *, struct sigaltstack *)); 114 int sigvec __P((int, struct sigvec *, struct sigvec *)); 115 void psignal __P((unsigned int, const char *)); 116 #endif /* !_POSIX_SOURCE */ 117 #endif /* !_ANSI_SOURCE */ 118 __END_DECLS 119 120 #endif /* !_USER_SIGNAL_H */ 121