1 /* $OpenBSD: signal.h,v 1.23 2015/11/10 04:30:59 guenther 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 __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE 41 #include <sys/types.h> 42 #endif 43 44 __BEGIN_DECLS 45 #if __BSD_VISIBLE 46 extern const char *const sys_signame[_NSIG]; 47 extern const char *const sys_siglist[_NSIG]; 48 #endif 49 50 int raise(int); 51 #if __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE 52 #if __BSD_VISIBLE || (__XPG_VISIBLE >= 500 && __XPG_VISIBLE < 700) 53 void (*bsd_signal(int, void (*)(int)))(int); 54 #endif 55 int kill(pid_t, int); 56 int sigaction(int, const struct sigaction *__restrict, 57 struct sigaction *__restrict); 58 int sigaddset(sigset_t *, int); 59 int sigdelset(sigset_t *, int); 60 int sigemptyset(sigset_t *); 61 int sigfillset(sigset_t *); 62 int sigismember(const sigset_t *, int); 63 int sigpending(sigset_t *); 64 int sigprocmask(int, const sigset_t *__restrict, sigset_t *__restrict); 65 #if __POSIX_VISIBLE >= 199506 66 int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict); 67 #endif 68 int sigsuspend(const sigset_t *); 69 70 #if !defined(_ANSI_LIBRARY) 71 72 extern int *__errno(void); 73 74 __only_inline int sigaddset(sigset_t *__set, int __signo) { 75 if (__signo <= 0 || __signo >= _NSIG) { 76 *__errno() = 22; /* EINVAL */ 77 return -1; 78 } 79 *__set |= (1U << ((__signo)-1)); /* sigmask(__signo) */ 80 return (0); 81 } 82 83 __only_inline int sigdelset(sigset_t *__set, int __signo) { 84 if (__signo <= 0 || __signo >= _NSIG) { 85 *__errno() = 22; /* EINVAL */ 86 return -1; 87 } 88 *__set &= ~(1U << ((__signo)-1)); /* sigmask(__signo) */ 89 return (0); 90 } 91 92 __only_inline int sigismember(const sigset_t *__set, int __signo) { 93 if (__signo <= 0 || __signo >= _NSIG) { 94 *__errno() = 22; /* EINVAL */ 95 return -1; 96 } 97 return ((*__set & (1U << ((__signo)-1))) != 0); 98 } 99 #endif /* !_ANSI_LIBRARY */ 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 #if __BSD_VISIBLE || __XPG_VISIBLE >= 420 106 int killpg(pid_t, int); 107 int siginterrupt(int, int); 108 int sigpause(int); 109 int sigaltstack(const struct sigaltstack *__restrict, 110 struct sigaltstack *__restrict); 111 #if __BSD_VISIBLE 112 int sigblock(int); 113 int sigreturn(struct sigcontext *); 114 int sigsetmask(int); 115 int sigvec(int, struct sigvec *, struct sigvec *); 116 int thrkill(pid_t _tid, int _signum, void *_tcb); 117 #endif 118 #endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */ 119 #if __BSD_VISIBLE || __POSIX_VISIBLE >= 199309 || __XPG_VISIBLE >= 500 120 int sigwait(const sigset_t *__restrict, int *__restrict); 121 #endif 122 #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809 123 void psignal(unsigned int, const char *); 124 #endif 125 #endif /* __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE */ 126 __END_DECLS 127 128 #endif /* !_USER_SIGNAL_H */ 129