include/signal.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   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
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  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.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*-
  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.
  54  *
  55  *      @(#)signal.h    8.3 (Berkeley) 3/30/94
  56  */
  57
  58 #ifndef _USER_SIGNAL_H
  59 #define _USER_SIGNAL_H
  60
  61 #include <sys/cdefs.h>
  62 #include <_types.h>
  63 #include <sys/signal.h>
  64
  65 #include <sys/_pthread/_pthread_types.h>
  66 #include <sys/_pthread/_pthread_t.h>
  67
  68 #if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
  69 extern __const char *__const sys_signame[NSIG];
  70 extern __const char *__const sys_siglist[NSIG];
  71 #endif
  72
  73 __BEGIN_DECLS
  74 int     raise(int);
  75 __END_DECLS
  76
  77 #ifndef _ANSI_SOURCE
  78 __BEGIN_DECLS
  79 void    (* _Nullable bsd_signal(int, void (* _Nullable)(int)))(int);
  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
  98 int     pthread_kill(pthread_t, int);
  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
 108 int     sigaction(int, const struct sigaction * __restrict,
 109             struct sigaction * __restrict);
 110 int     sigaddset(sigset_t *, int);
 111 //Begin-Libc
 112 #ifndef LIBC_ALIAS_SIGALTSTACK
 113 //End-Libc
 114 int     sigaltstack(const stack_t * __restrict, stack_t * __restrict)  __DARWIN_ALIAS(sigaltstack) __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
 115 //Begin-Libc
 116 #else /* LIBC_ALIAS_SIGALTSTACK */
 117 int     sigaltstack(const stack_t * __restrict, stack_t * __restrict)  LIBC_ALIAS(sigaltstack) __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
 118 #endif /* !LIBC_ALIAS_SIGALTSTACK */
 119 //End-Libc
 120 int     sigdelset(sigset_t *, int);
 121 int     sigemptyset(sigset_t *);
 122 int     sigfillset(sigset_t *);
 123 int     sighold(int);
 124 int     sigignore(int);
 125 int     siginterrupt(int, int);
 126 int     sigismember(const sigset_t *, int);
 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
 136 int     sigpending(sigset_t *);
 137 int     sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
 138 int     sigrelse(int);
 139 void    (* _Nullable sigset(int, void (* _Nullable)(int)))(int);
 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)
 159 void    psignal(unsigned int, const char *);
 160 int     sigblock(int);
 161 int     sigsetmask(int);
 162 int     sigvec(int, struct sigvec *, struct sigvec *);
 163 #endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
 164 __END_DECLS
 165
 166 /* List definitions after function declarations, or Reiser cpp gets upset. */
 167 #if defined(__i386__) || defined(__x86_64__)
 168 /* The left shift operator on intel is modulo 32 */
 169 __header_always_inline int
 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)
 181 #define sigemptyset(set)        (*(set) = 0, 0)
 182 #define sigfillset(set)         (*(set) = ~(sigset_t)0, 0)
 183 #endif  /* !_ANSI_SOURCE */
 184
 185 #endif  /* !_USER_SIGNAL_H */