xref: /freebsd/include/signal.h (revision 3e11bd9e2a2b1cbd4283c87c93e3cc75e3f2dacb)
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  * $FreeBSD$
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 
40 #if __BSD_VISIBLE
41 /*
42  * XXX should enlarge these, if only to give empty names instead of bounds
43  * errors for large signal numbers.
44  */
45 extern const char * const sys_signame[NSIG];
46 extern const char * const sys_siglist[NSIG];
47 extern const int sys_nsig;
48 #endif
49 
50 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
51 #ifndef _PID_T_DECLARED
52 typedef	__pid_t		pid_t;
53 #define	_PID_T_DECLARED
54 #endif
55 #endif
56 
57 #if __POSIX_VISIBLE || __XSI_VISIBLE
58 struct pthread;		/* XXX */
59 typedef struct pthread *__pthread_t;
60 #if !defined(_PTHREAD_T_DECLARED) && __POSIX_VISIBLE >= 200809
61 typedef __pthread_t pthread_t;
62 #define	_PTHREAD_T_DECLARED
63 #endif
64 #endif /* __POSIX_VISIBLE || __XSI_VISIBLE */
65 
66 __BEGIN_DECLS
67 int	raise(int);
68 
69 #if __POSIX_VISIBLE || __XSI_VISIBLE
70 int	kill(__pid_t, int);
71 int	pthread_kill(__pthread_t, int);
72 int	pthread_sigmask(int, const __sigset_t * __restrict,
73 	    __sigset_t * __restrict);
74 int	sigaction(int, const struct sigaction * __restrict,
75 	    struct sigaction * __restrict);
76 int	sigaddset(sigset_t *, int);
77 int	sigdelset(sigset_t *, int);
78 int	sigemptyset(sigset_t *);
79 int	sigfillset(sigset_t *);
80 int	sigismember(const sigset_t *, int);
81 int	sigpending(sigset_t *);
82 int	sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
83 int	sigsuspend(const sigset_t *);
84 int	sigwait(const sigset_t * __restrict, int * __restrict);
85 #endif
86 
87 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600
88 int	sigqueue(__pid_t, int, const union sigval);
89 
90 struct timespec;
91 int	sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
92 	    const struct timespec * __restrict);
93 int	sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
94 #endif
95 
96 #if __XSI_VISIBLE
97 int	killpg(__pid_t, int);
98 int	sigaltstack(const stack_t * __restrict, stack_t * __restrict);
99 int	sighold(int);
100 int	sigignore(int);
101 int	sigpause(int);
102 int	sigrelse(int);
103 void	(*sigset(int, void (*)(int)))(int);
104 int	xsi_sigpause(int);
105 #endif
106 
107 #if __XSI_VISIBLE >= 600
108 int	siginterrupt(int, int);
109 #endif
110 
111 #if __POSIX_VISIBLE >= 200809
112 void	psignal(unsigned int, const char *);
113 #endif
114 
115 #if __BSD_VISIBLE
116 int	sigblock(int);
117 struct __ucontext;		/* XXX spec requires a complete declaration. */
118 int	sigreturn(const struct __ucontext *);
119 int	sigsetmask(int);
120 int	sigstack(const struct sigstack *, struct sigstack *);
121 int	sigvec(int, struct sigvec *, struct sigvec *);
122 #endif
123 __END_DECLS
124 
125 #endif /* !_SIGNAL_H_ */
126