xref: /freebsd/include/signal.h (revision 129d3046ef0427d3b22b78a71f3494854d817fba)
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. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	@(#)signal.h	8.3 (Berkeley) 3/30/94
34  * $FreeBSD$
35  */
36 
37 #ifndef _SIGNAL_H_
38 #define	_SIGNAL_H_
39 
40 #include <sys/cdefs.h>
41 #include <sys/_types.h>
42 #include <sys/signal.h>
43 
44 #if __BSD_VISIBLE
45 /*
46  * XXX should enlarge these, if only to give empty names instead of bounds
47  * errors for large signal numbers.
48  */
49 extern __const char *__const sys_signame[NSIG];
50 extern __const char *__const sys_siglist[NSIG];
51 extern __const int sys_nsig;
52 #endif
53 
54 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
55 #ifndef _PID_T_DECLARED
56 typedef	__pid_t		pid_t;
57 #define	_PID_T_DECLARED
58 #endif
59 #endif
60 
61 #if __POSIX_VISIBLE || __XSI_VISIBLE
62 struct pthread;		/* XXX */
63 typedef struct pthread *__pthread_t;
64 #if !defined(_PTHREAD_T_DECLARED) && __POSIX_VISIBLE >= 200809
65 typedef __pthread_t pthread_t;
66 #define	_PTHREAD_T_DECLARED
67 #endif
68 #endif /* __POSIX_VISIBLE || __XSI_VISIBLE */
69 
70 __BEGIN_DECLS
71 int	raise(int);
72 
73 #if __POSIX_VISIBLE || __XSI_VISIBLE
74 int	kill(__pid_t, int);
75 int	pthread_kill(__pthread_t, int);
76 int	pthread_sigmask(int, const __sigset_t *, __sigset_t *);
77 int	sigaction(int, const struct sigaction * __restrict,
78 	    struct sigaction * __restrict);
79 int	sigaddset(sigset_t *, int);
80 int	sigdelset(sigset_t *, int);
81 int	sigemptyset(sigset_t *);
82 int	sigfillset(sigset_t *);
83 int	sigismember(const sigset_t *, int);
84 int	sigpending(sigset_t *);
85 int	sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
86 int	sigsuspend(const sigset_t *);
87 int	sigwait(const sigset_t * __restrict, int * __restrict);
88 #endif
89 
90 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600
91 int	sigqueue(__pid_t, int, const union sigval);
92 
93 struct timespec;
94 int	sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
95 	    const struct timespec * __restrict);
96 int	sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
97 #endif
98 
99 #if __XSI_VISIBLE
100 int	killpg(__pid_t, int);
101 int	sigaltstack(const stack_t * __restrict, stack_t * __restrict);
102 int	sigpause(int);
103 #endif
104 
105 #if __XSI_VISIBLE >= 600
106 int	siginterrupt(int, int);
107 #endif
108 
109 #if __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE
110 void	psignal(unsigned int, const char *);
111 #endif
112 
113 #if __BSD_VISIBLE
114 int	sigblock(int);
115 struct __ucontext;		/* XXX spec requires a complete declaration. */
116 int	sigreturn(const struct __ucontext *);
117 int	sigsetmask(int);
118 int	sigstack(const struct sigstack *, struct sigstack *);
119 int	sigvec(int, struct sigvec *, struct sigvec *);
120 #endif
121 __END_DECLS
122 
123 #endif /* !_SIGNAL_H_ */
124