1 /* $OpenBSD: signal.h,v 1.7 2003/06/02 19:34:12 millert Exp $ */ 2 /* $NetBSD: signal.h,v 1.8 1996/02/29 00:04:57 jtc Exp $ */ 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. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)signal.h 8.3 (Berkeley) 3/30/94 33 */ 34 35 #ifndef _USER_SIGNAL_H 36 #define _USER_SIGNAL_H 37 38 #include <sys/signal.h> 39 40 #if !defined(_ANSI_SOURCE) 41 #include <sys/types.h> 42 #endif 43 44 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) 45 extern __const char *__const sys_signame[_NSIG]; 46 extern __const char *__const sys_siglist[_NSIG]; 47 #endif 48 49 __BEGIN_DECLS 50 int raise(int); 51 #ifndef _ANSI_SOURCE 52 int kill(pid_t, int); 53 int sigaction(int, const struct sigaction *, struct sigaction *); 54 int sigaddset(sigset_t *, int); 55 int sigdelset(sigset_t *, int); 56 int sigemptyset(sigset_t *); 57 int sigfillset(sigset_t *); 58 int sigismember(const sigset_t *, int); 59 int sigpending(sigset_t *); 60 int sigprocmask(int, const sigset_t *, sigset_t *); 61 int sigsuspend(const sigset_t *); 62 63 #if defined(__GNUC__) 64 extern __inline int sigaddset(sigset_t *set, int signo) { 65 extern int errno; 66 67 if (signo <= 0 || signo >= _NSIG) { 68 errno = 22; /* EINVAL */ 69 return -1; 70 } 71 *set |= (1 << ((signo)-1)); /* sigmask(signo) */ 72 return (0); 73 } 74 75 extern __inline int sigdelset(sigset_t *set, int signo) { 76 extern int errno; 77 78 if (signo <= 0 || signo >= _NSIG) { 79 errno = 22; /* EINVAL */ 80 return -1; 81 } 82 *set &= ~(1 << ((signo)-1)); /* sigmask(signo) */ 83 return (0); 84 } 85 86 extern __inline int sigismember(const sigset_t *set, int signo) { 87 extern int errno; 88 89 if (signo <= 0 || signo >= _NSIG) { 90 errno = 22; /* EINVAL */ 91 return -1; 92 } 93 return ((*set & (1 << ((signo)-1))) != 0); 94 } 95 #endif 96 97 /* List definitions after function declarations, or Reiser cpp gets upset. */ 98 #define sigemptyset(set) (*(set) = 0, 0) 99 #define sigfillset(set) (*(set) = ~(sigset_t)0, 0) 100 101 #ifndef _POSIX_SOURCE 102 int killpg(pid_t, int); 103 int sigblock(int); 104 int siginterrupt(int, int); 105 int sigpause(int); 106 int sigreturn(struct sigcontext *); 107 int sigsetmask(int); 108 int sigstack(const struct sigstack *, struct sigstack *); 109 int sigaltstack(const struct sigaltstack *, struct sigaltstack *); 110 int sigvec(int, struct sigvec *, struct sigvec *); 111 void psignal(unsigned int, const char *); 112 int sigwait(const sigset_t *, int *); 113 #endif /* !_POSIX_SOURCE */ 114 #endif /* !_ANSI_SOURCE */ 115 __END_DECLS 116 117 #endif /* !_USER_SIGNAL_H */ 118