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signal.h
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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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 _SIGNAL_H_
#define _SIGNAL_H_
#include <sys/cdefs.h>
#include <sys/_types.h>
#include <sys/signal.h>
#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
#include <machine/ucontext.h>
#include <sys/_ucontext.h>
#endif
__NULLABILITY_PRAGMA_PUSH
#if __BSD_VISIBLE
/*
* XXX should enlarge these, if only to give empty names instead of bounds
* errors for large signal numbers.
*/
extern const char * const sys_signame[NSIG];
extern const char * const sys_siglist[NSIG];
extern const int sys_nsig;
#endif
#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
#ifndef _PID_T_DECLARED
typedef __pid_t pid_t;
#define _PID_T_DECLARED
#endif
#endif
#if __POSIX_VISIBLE || __XSI_VISIBLE
struct pthread; /* XXX */
typedef struct pthread *__pthread_t;
#if !defined(_PTHREAD_T_DECLARED) && __POSIX_VISIBLE >= 200809
typedef __pthread_t pthread_t;
#define _PTHREAD_T_DECLARED
#endif
#endif /* __POSIX_VISIBLE || __XSI_VISIBLE */
__BEGIN_DECLS
int raise(int);
#if __POSIX_VISIBLE || __XSI_VISIBLE
int kill(__pid_t, int);
int pthread_kill(__pthread_t, int);
int pthread_sigmask(int, const __sigset_t * __restrict,
__sigset_t * __restrict);
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 * _Nonnull);
int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
int sigsuspend(const sigset_t * _Nonnull);
int sigwait(const sigset_t * _Nonnull __restrict,
int * _Nonnull __restrict);
#endif
#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600
int sigqueue(__pid_t, int, const union sigval);
struct timespec;
int sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
const struct timespec * __restrict);
int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
#endif
#if __XSI_VISIBLE
int killpg(__pid_t, int);
int sigaltstack(const stack_t * __restrict, stack_t * __restrict);
int sighold(int);
int sigignore(int);
int sigpause(int);
int sigrelse(int);
void (* _Nullable sigset(int, void (* _Nullable)(int)))(int);
int xsi_sigpause(int);
#endif
#if __XSI_VISIBLE >= 600
int siginterrupt(int, int);
#endif
#if __POSIX_VISIBLE >= 200809
void psignal(int, const char *);
#endif
#if __BSD_VISIBLE
int sigandset(sigset_t *dest, const sigset_t *left, const sigset_t *right);
int sigblock(int);
int sigisemptyset(const sigset_t *set);
int sigorset(sigset_t *dest, const sigset_t *left, const sigset_t *right);
int sigreturn(const struct __ucontext *);
int sigsetmask(int);
int sigstack(const struct sigstack *, struct sigstack *);
int sigvec(int, struct sigvec *, struct sigvec *);
#endif
__END_DECLS
__NULLABILITY_PRAGMA_POP
#endif /* !_SIGNAL_H_ */