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