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