1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	@(#)signal.h	8.3 (Berkeley) 3/30/94
30 * $FreeBSD: stable/11/include/signal.h 355898 2019-12-19 02:09:16Z kevans $
31 */
32
33#ifndef _SIGNAL_H_
34#define	_SIGNAL_H_
35
36#include <sys/cdefs.h>
37#include <sys/_types.h>
38#include <sys/signal.h>
39#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
40#include <machine/ucontext.h>
41#include <sys/_ucontext.h>
42#endif
43
44__NULLABILITY_PRAGMA_PUSH
45
46#if __BSD_VISIBLE
47/*
48 * XXX should enlarge these, if only to give empty names instead of bounds
49 * errors for large signal numbers.
50 */
51extern const char * const sys_signame[NSIG];
52extern const char * const sys_siglist[NSIG];
53extern const int sys_nsig;
54#endif
55
56#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
57#ifndef _PID_T_DECLARED
58typedef	__pid_t		pid_t;
59#define	_PID_T_DECLARED
60#endif
61#endif
62
63#if __POSIX_VISIBLE || __XSI_VISIBLE
64struct pthread;		/* XXX */
65typedef struct pthread *__pthread_t;
66#if !defined(_PTHREAD_T_DECLARED) && __POSIX_VISIBLE >= 200809
67typedef __pthread_t pthread_t;
68#define	_PTHREAD_T_DECLARED
69#endif
70#endif /* __POSIX_VISIBLE || __XSI_VISIBLE */
71
72__BEGIN_DECLS
73int	raise(int);
74
75#if __POSIX_VISIBLE || __XSI_VISIBLE
76int	kill(__pid_t, int);
77int	pthread_kill(__pthread_t, int);
78int	pthread_sigmask(int, const __sigset_t * __restrict,
79	    __sigset_t * __restrict);
80int	sigaction(int, const struct sigaction * __restrict,
81	    struct sigaction * __restrict);
82int	sigaddset(sigset_t *, int);
83int	sigdelset(sigset_t *, int);
84int	sigemptyset(sigset_t *);
85int	sigfillset(sigset_t *);
86int	sigismember(const sigset_t *, int);
87int	sigpending(sigset_t * _Nonnull);
88int	sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
89int	sigsuspend(const sigset_t * _Nonnull);
90int	sigwait(const sigset_t * _Nonnull __restrict,
91	    int * _Nonnull __restrict);
92#endif
93
94#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600
95int	sigqueue(__pid_t, int, const union sigval);
96
97struct timespec;
98int	sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
99	    const struct timespec * __restrict);
100int	sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
101#endif
102
103#if __XSI_VISIBLE
104int	killpg(__pid_t, int);
105int	sigaltstack(const stack_t * __restrict, stack_t * __restrict);
106int	sighold(int);
107int	sigignore(int);
108int	sigpause(int);
109int	sigrelse(int);
110void	(* _Nullable sigset(int, void (* _Nullable)(int)))(int);
111int	xsi_sigpause(int);
112#endif
113
114#if __XSI_VISIBLE >= 600
115int	siginterrupt(int, int);
116#endif
117
118#if __POSIX_VISIBLE >= 200809
119void	psignal(int, const char *);
120#endif
121
122#if __BSD_VISIBLE
123int	sigandset(sigset_t *dest, const sigset_t *left, const sigset_t *right);
124int	sigblock(int);
125int	sigisemptyset(const sigset_t *set);
126int	sigorset(sigset_t *dest, const sigset_t *left, const sigset_t *right);
127int	sigreturn(const struct __ucontext *);
128int	sigsetmask(int);
129int	sigstack(const struct sigstack *, struct sigstack *);
130int	sigvec(int, struct sigvec *, struct sigvec *);
131#endif
132__END_DECLS
133__NULLABILITY_PRAGMA_POP
134
135#endif /* !_SIGNAL_H_ */
136