[apple/libc.git] / include / signal.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*-
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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/cdefs.h>
#include <_types.h>
#include <sys/signal.h>

#include <sys/_pthread/_pthread_types.h>
#include <sys/_pthread/_pthread_t.h>

#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
extern __const char *__const sys_signame[NSIG];
extern __const char *__const sys_siglist[NSIG];
#endif

__BEGIN_DECLS
int	raise(int);
__END_DECLS

#ifndef	_ANSI_SOURCE
__BEGIN_DECLS
void	(* _Nullable bsd_signal(int, void (* _Nullable)(int)))(int);
//Begin-Libc
#ifndef LIBC_ALIAS_KILL
//End-Libc
int	kill(pid_t, int) __DARWIN_ALIAS(kill);
//Begin-Libc
#else /* LIBC_ALIAS_KILL */
int	kill(pid_t, int) LIBC_ALIAS(kill);
#endif /* !LIBC_ALIAS_KILL */
//End-Libc
//Begin-Libc
#ifndef LIBC_ALIAS_KILLPG
//End-Libc
int	killpg(pid_t, int) __DARWIN_ALIAS(killpg);
//Begin-Libc
#else /* LIBC_ALIAS_KILLPG */
int	killpg(pid_t, int) LIBC_ALIAS(killpg);
#endif /* !LIBC_ALIAS_KILLPG */
//End-Libc
int	pthread_kill(pthread_t, int);
//Begin-Libc
#ifndef LIBC_ALIAS_PTHREAD_SIGMASK
//End-Libc
int	pthread_sigmask(int, const sigset_t *, sigset_t *) __DARWIN_ALIAS(pthread_sigmask);
//Begin-Libc
#else /* LIBC_ALIAS_PTHREAD_SIGMASK */
int	pthread_sigmask(int, const sigset_t *, sigset_t *) LIBC_ALIAS(pthread_sigmask);
#endif /* !LIBC_ALIAS_PTHREAD_SIGMASK */
//End-Libc
int	sigaction(int, const struct sigaction * __restrict,
	    struct sigaction * __restrict);
int	sigaddset(sigset_t *, int);
//Begin-Libc
#ifndef LIBC_ALIAS_SIGALTSTACK
//End-Libc
int	sigaltstack(const stack_t * __restrict, stack_t * __restrict)  __DARWIN_ALIAS(sigaltstack) __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
//Begin-Libc
#else /* LIBC_ALIAS_SIGALTSTACK */
int	sigaltstack(const stack_t * __restrict, stack_t * __restrict)  LIBC_ALIAS(sigaltstack) __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
#endif /* !LIBC_ALIAS_SIGALTSTACK */
//End-Libc
int	sigdelset(sigset_t *, int);
int	sigemptyset(sigset_t *);
int	sigfillset(sigset_t *);
int	sighold(int);
int	sigignore(int);
int	siginterrupt(int, int);
int	sigismember(const sigset_t *, int);
//Begin-Libc
#ifndef LIBC_ALIAS_SIGPAUSE
//End-Libc
int	sigpause(int) __DARWIN_ALIAS_C(sigpause);
//Begin-Libc
#else /* LIBC_ALIAS_SIGPAUSE */
int	sigpause(int) LIBC_ALIAS_C(sigpause);
#endif /* !LIBC_ALIAS_SIGPAUSE */
//End-Libc
int	sigpending(sigset_t *);
int	sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
int	sigrelse(int);
void    (* _Nullable sigset(int, void (* _Nullable)(int)))(int);
//Begin-Libc
#ifndef LIBC_ALIAS_SIGSUSPEND
//End-Libc
int	sigsuspend(const sigset_t *) __DARWIN_ALIAS_C(sigsuspend);
//Begin-Libc
#else /* LIBC_ALIAS_SIGSUSPEND */
int	sigsuspend(const sigset_t *) LIBC_ALIAS_C(sigsuspend);
#endif /* !LIBC_ALIAS_SIGSUSPEND */
//End-Libc
//Begin-Libc
#ifndef LIBC_ALIAS_SIGWAIT
//End-Libc
int	sigwait(const sigset_t * __restrict, int * __restrict) __DARWIN_ALIAS_C(sigwait);
//Begin-Libc
#else /* LIBC_ALIAS_SIGWAIT */
int	sigwait(const sigset_t * __restrict, int * __restrict) LIBC_ALIAS_C(sigwait);
#endif /* !LIBC_ALIAS_SIGWAIT */
//End-Libc
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
void	psignal(unsigned int, const char *);
int	sigblock(int);
int	sigsetmask(int);
int	sigvec(int, struct sigvec *, struct sigvec *);
#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
__END_DECLS

/* List definitions after function declarations, or Reiser cpp gets upset. */
#if defined(__i386__) || defined(__x86_64__)
/* The left shift operator on intel is modulo 32 */
__header_always_inline int
__sigbits(int __signo)
{
    return __signo > __DARWIN_NSIG ? 0 : (1 << (__signo - 1));
}
#else /* !__i386__ && !__x86_64__ */
#define __sigbits(signo)	(1 << ((signo) - 1))
#endif /* __i386__ || __x86_64__ */

#define	sigaddset(set, signo)	(*(set) |= __sigbits(signo), 0)
#define	sigdelset(set, signo)	(*(set) &= ~__sigbits(signo), 0)
#define	sigismember(set, signo)	((*(set) & __sigbits(signo)) != 0)
#define	sigemptyset(set)	(*(set) = 0, 0)
#define	sigfillset(set)		(*(set) = ~(sigset_t)0, 0)
#endif	/* !_ANSI_SOURCE */

#endif	/* !_USER_SIGNAL_H */
Commit	Line	Data
e9ce8d39	1	/*
5b2abdfb	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
e9ce8d39 A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
734aad71 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. Please obtain a copy of the License at
	10	* http://www.opensource.apple.com/apsl/ and read it before using this
	11	* file.
	12	*
	13	* The Original Code and all software distributed under the License are
	14	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
e9ce8d39 A	15	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
e9ce8d39 A	16	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
734aad71 A	17	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	18	* Please see the License for the specific language governing rights and
	19	* limitations under the License.
e9ce8d39 A	20	*
	21	* @APPLE_LICENSE_HEADER_END@
	22	*/
5b2abdfb	23	/*-
e9ce8d39 A	24	* Copyright (c) 1991, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	*
	27	* Redistribution and use in source and binary forms, with or without
	28	* modification, are permitted provided that the following conditions
	29	* are met:
	30	* 1. Redistributions of source code must retain the above copyright
	31	* notice, this list of conditions and the following disclaimer.
	32	* 2. Redistributions in binary form must reproduce the above copyright
	33	* notice, this list of conditions and the following disclaimer in the
	34	* documentation and/or other materials provided with the distribution.
	35	* 3. All advertising materials mentioning features or use of this software
	36	* must display the following acknowledgement:
	37	* This product includes software developed by the University of
	38	* California, Berkeley and its contributors.
	39	* 4. Neither the name of the University nor the names of its contributors
	40	* may be used to endorse or promote products derived from this software
	41	* without specific prior written permission.
	42	*
	43	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	44	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	45	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	46	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	47	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	48	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	49	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	50	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	51	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	52	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	53	* SUCH DAMAGE.
5b2abdfb A	54	*
5b2abdfb A	55	* @(#)signal.h 8.3 (Berkeley) 3/30/94
e9ce8d39 A	56	*/
e9ce8d39 A	57
5b2abdfb A	58	#ifndef _USER_SIGNAL_H
5b2abdfb A	59	#define _USER_SIGNAL_H
e9ce8d39	60
5b2abdfb	61	#include <sys/cdefs.h>
224c7076	62	#include <_types.h>
5b2abdfb	63	#include <sys/signal.h>
23e20b00 A	64
	65	#include <sys/_pthread/_pthread_types.h>
	66	#include <sys/_pthread/_pthread_t.h>
59e0d9fe	67
224c7076	68	#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) \|\| defined(_DARWIN_C_SOURCE))
5b2abdfb A	69	extern __const char *__const sys_signame[NSIG];
	70	extern __const char *__const sys_siglist[NSIG];
	71	#endif
e9ce8d39	72
5b2abdfb	73	__BEGIN_DECLS
9385eb3d	74	int raise(int);
59e0d9fe A	75	__END_DECLS
59e0d9fe A	76
5b2abdfb	77	#ifndef _ANSI_SOURCE
59e0d9fe	78	__BEGIN_DECLS
974e3884	79	void (* _Nullable bsd_signal(int, void (* _Nullable)(int)))(int);
224c7076 A	80	//Begin-Libc
	81	#ifndef LIBC_ALIAS_KILL
	82	//End-Libc
	83	int kill(pid_t, int) __DARWIN_ALIAS(kill);
	84	//Begin-Libc
	85	#else /* LIBC_ALIAS_KILL */
	86	int kill(pid_t, int) LIBC_ALIAS(kill);
	87	#endif /* !LIBC_ALIAS_KILL */
	88	//End-Libc
	89	//Begin-Libc
	90	#ifndef LIBC_ALIAS_KILLPG
	91	//End-Libc
	92	int killpg(pid_t, int) __DARWIN_ALIAS(killpg);
	93	//Begin-Libc
	94	#else /* LIBC_ALIAS_KILLPG */
	95	int killpg(pid_t, int) LIBC_ALIAS(killpg);
	96	#endif /* !LIBC_ALIAS_KILLPG */
	97	//End-Libc
59e0d9fe	98	int pthread_kill(pthread_t, int);
224c7076 A	99	//Begin-Libc
	100	#ifndef LIBC_ALIAS_PTHREAD_SIGMASK
	101	//End-Libc
	102	int pthread_sigmask(int, const sigset_t , sigset_t ) __DARWIN_ALIAS(pthread_sigmask);
	103	//Begin-Libc
	104	#else /* LIBC_ALIAS_PTHREAD_SIGMASK */
	105	int pthread_sigmask(int, const sigset_t , sigset_t ) LIBC_ALIAS(pthread_sigmask);
	106	#endif /* !LIBC_ALIAS_PTHREAD_SIGMASK */
	107	//End-Libc
59e0d9fe A	108	int sigaction(int, const struct sigaction * __restrict,
59e0d9fe A	109	struct sigaction * __restrict);
9385eb3d	110	int sigaddset(sigset_t *, int);
224c7076 A	111	//Begin-Libc
	112	#ifndef LIBC_ALIAS_SIGALTSTACK
	113	//End-Libc
5f125488	114	int sigaltstack(const stack_t * __restrict, stack_t * __restrict) __DARWIN_ALIAS(sigaltstack) __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
224c7076 A	115	//Begin-Libc
224c7076 A	116	#else /* LIBC_ALIAS_SIGALTSTACK */
5f125488	117	int sigaltstack(const stack_t * __restrict, stack_t * __restrict) LIBC_ALIAS(sigaltstack) __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
224c7076 A	118	#endif /* !LIBC_ALIAS_SIGALTSTACK */
224c7076 A	119	//End-Libc
9385eb3d A	120	int sigdelset(sigset_t *, int);
	121	int sigemptyset(sigset_t *);
	122	int sigfillset(sigset_t *);
59e0d9fe A	123	int sighold(int);
	124	int sigignore(int);
	125	int siginterrupt(int, int);
9385eb3d	126	int sigismember(const sigset_t *, int);
224c7076 A	127	//Begin-Libc
	128	#ifndef LIBC_ALIAS_SIGPAUSE
	129	//End-Libc
	130	int sigpause(int) __DARWIN_ALIAS_C(sigpause);
	131	//Begin-Libc
	132	#else /* LIBC_ALIAS_SIGPAUSE */
	133	int sigpause(int) LIBC_ALIAS_C(sigpause);
	134	#endif /* !LIBC_ALIAS_SIGPAUSE */
	135	//End-Libc
9385eb3d	136	int sigpending(sigset_t *);
59e0d9fe A	137	int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
59e0d9fe A	138	int sigrelse(int);
974e3884	139	void (* _Nullable sigset(int, void (* _Nullable)(int)))(int);
224c7076 A	140	//Begin-Libc
	141	#ifndef LIBC_ALIAS_SIGSUSPEND
	142	//End-Libc
	143	int sigsuspend(const sigset_t *) __DARWIN_ALIAS_C(sigsuspend);
	144	//Begin-Libc
	145	#else /* LIBC_ALIAS_SIGSUSPEND */
	146	int sigsuspend(const sigset_t *) LIBC_ALIAS_C(sigsuspend);
	147	#endif /* !LIBC_ALIAS_SIGSUSPEND */
	148	//End-Libc
	149	//Begin-Libc
	150	#ifndef LIBC_ALIAS_SIGWAIT
	151	//End-Libc
	152	int sigwait(const sigset_t * __restrict, int * __restrict) __DARWIN_ALIAS_C(sigwait);
	153	//Begin-Libc
	154	#else /* LIBC_ALIAS_SIGWAIT */
	155	int sigwait(const sigset_t * __restrict, int * __restrict) LIBC_ALIAS_C(sigwait);
	156	#endif /* !LIBC_ALIAS_SIGWAIT */
	157	//End-Libc
	158	#if !defined(_POSIX_C_SOURCE) \|\| defined(_DARWIN_C_SOURCE)
59e0d9fe	159	void psignal(unsigned int, const char *);
9385eb3d	160	int sigblock(int);
9385eb3d A	161	int sigsetmask(int);
9385eb3d A	162	int sigvec(int, struct sigvec , struct sigvec );
224c7076	163	#endif /* (!_POSIX_C_SOURCE \|\| _DARWIN_C_SOURCE) */
5b2abdfb	164	__END_DECLS
e9ce8d39	165
5b2abdfb	166	/* List definitions after function declarations, or Reiser cpp gets upset. */
224c7076 A	167	#if defined(__i386__) \|\| defined(__x86_64__)
224c7076 A	168	/* The left shift operator on intel is modulo 32 */
6465356a	169	__header_always_inline int
224c7076 A	170	__sigbits(int __signo)
	171	{
	172	return __signo > __DARWIN_NSIG ? 0 : (1 << (__signo - 1));
	173	}
	174	#else /* !__i386__ && !__x86_64__ */
	175	#define __sigbits(signo) (1 << ((signo) - 1))
	176	#endif /* __i386__ \|\| __x86_64__ */
	177
	178	#define sigaddset(set, signo) (*(set) \|= __sigbits(signo), 0)
	179	#define sigdelset(set, signo) (*(set) &= ~__sigbits(signo), 0)
	180	#define sigismember(set, signo) ((*(set) & __sigbits(signo)) != 0)
5b2abdfb A	181	#define sigemptyset(set) (*(set) = 0, 0)
5b2abdfb A	182	#define sigfillset(set) (*(set) = ~(sigset_t)0, 0)
59e0d9fe	183	#endif /* !_ANSI_SOURCE */
e9ce8d39	184
5b2abdfb	185	#endif /* !_USER_SIGNAL_H */