mirror of https://github.com/openbsd/src.git
141 lines
4.4 KiB
C
141 lines
4.4 KiB
C
/* $OpenBSD: signal.h,v 1.26 2018/05/30 13:20:38 bluhm Exp $ */
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/* $NetBSD: signal.h,v 1.8 1996/02/29 00:04:57 jtc Exp $ */
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/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)signal.h 8.3 (Berkeley) 3/30/94
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*/
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#ifndef _USER_SIGNAL_H
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#define _USER_SIGNAL_H
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#include <sys/signal.h>
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#if __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE
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#include <sys/types.h>
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#endif
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__BEGIN_DECLS
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#if __BSD_VISIBLE
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extern const char *const sys_signame[_NSIG];
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extern const char *const sys_siglist[_NSIG];
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#endif
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int raise(int);
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#if __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE
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#if __BSD_VISIBLE || (__XPG_VISIBLE >= 500 && __XPG_VISIBLE < 700)
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void (*bsd_signal(int, void (*)(int)))(int);
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#endif
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int kill(pid_t, int);
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int sigaction(int, const struct sigaction *__restrict,
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struct sigaction *__restrict);
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int sigaddset(sigset_t *, int);
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int sigdelset(sigset_t *, int);
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int sigemptyset(sigset_t *);
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int sigfillset(sigset_t *);
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int sigismember(const sigset_t *, int);
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int sigpending(sigset_t *);
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int sigprocmask(int, const sigset_t *__restrict, sigset_t *__restrict);
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#if __POSIX_VISIBLE >= 199506
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int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict);
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#endif
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int sigsuspend(const sigset_t *);
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#if !defined(_ANSI_LIBRARY)
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extern int *__errno(void);
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__only_inline int sigaddset(sigset_t *__set, int __signo)
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{
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if (__signo <= 0 || __signo >= _NSIG) {
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*__errno() = 22; /* EINVAL */
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return -1;
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}
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*__set |= (1U << ((__signo)-1)); /* sigmask(__signo) */
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return (0);
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}
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__only_inline int sigdelset(sigset_t *__set, int __signo)
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{
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if (__signo <= 0 || __signo >= _NSIG) {
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*__errno() = 22; /* EINVAL */
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return -1;
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}
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*__set &= ~(1U << ((__signo)-1)); /* sigmask(__signo) */
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return (0);
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}
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__only_inline int sigismember(const sigset_t *__set, int __signo)
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{
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if (__signo <= 0 || __signo >= _NSIG) {
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*__errno() = 22; /* EINVAL */
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return -1;
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}
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return ((*__set & (1U << ((__signo)-1))) != 0);
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}
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__only_inline int sigemptyset(sigset_t *__set)
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{
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*__set = 0;
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return (0);
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}
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__only_inline int sigfillset(sigset_t *__set)
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{
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*__set = ~(sigset_t)0;
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return (0);
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}
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#endif /* !_ANSI_LIBRARY */
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#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
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int killpg(pid_t, int);
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int siginterrupt(int, int);
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int sigaltstack(const struct sigaltstack *__restrict,
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struct sigaltstack *__restrict);
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#if __BSD_VISIBLE
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int sigblock(int);
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/* This is the traditional BSD sigpause() and not the XPG/POSIX sigpause(). */
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int sigpause(int);
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int sigsetmask(int);
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int sigvec(int, struct sigvec *, struct sigvec *);
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int thrkill(pid_t _tid, int _signum, void *_tcb);
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#endif
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#endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
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#if __BSD_VISIBLE || __POSIX_VISIBLE >= 199309 || __XPG_VISIBLE >= 500
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int sigwait(const sigset_t *__restrict, int *__restrict);
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#endif
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#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
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void psignal(unsigned int, const char *);
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#endif
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#endif /* __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE */
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__END_DECLS
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#endif /* !_USER_SIGNAL_H */
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