1 /* $NetBSD: signal.h,v 1.54 2010/08/27 08:40:38 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)signal.h 8.3 (Berkeley) 3/30/94 32 */ 33 34 #ifndef _SIGNAL_H_ 35 #define _SIGNAL_H_ 36 37 #include <sys/cdefs.h> 38 #include <sys/featuretest.h> 39 40 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 41 defined(_NETBSD_SOURCE) 42 #include <sys/types.h> 43 #endif 44 45 #include <sys/signal.h> 46 47 #if defined(_NETBSD_SOURCE) 48 extern const char *const *sys_signame __RENAME(__sys_signame14); 49 #ifndef __SYS_SIGLIST_DECLARED 50 #define __SYS_SIGLIST_DECLARED 51 /* also in unistd.h */ 52 extern const char *const *sys_siglist __RENAME(__sys_siglist14); 53 #endif /* __SYS_SIGLIST_DECLARED */ 54 extern const int sys_nsig __RENAME(__sys_nsig14); 55 #endif 56 57 __BEGIN_DECLS 58 int raise(int); 59 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 60 defined(_NETBSD_SOURCE) 61 int kill(pid_t, int); 62 int __libc_sigaction14(int, const struct sigaction * __restrict, 63 struct sigaction * __restrict); 64 65 #ifndef __minix 66 #if (_POSIX_C_SOURCE - 0L) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 67 defined(_NETBSD_SOURCE) 68 int pthread_sigmask(int, const sigset_t * __restrict, 69 sigset_t * __restrict); 70 int pthread_kill(pthread_t, int); 71 int __libc_thr_sigsetmask(int, const sigset_t * __restrict, 72 sigset_t * __restrict); 73 #ifndef __LIBPTHREAD_SOURCE__ 74 #define pthread_sigmask __libc_thr_sigsetmask 75 #endif /* __LIBPTHREAD_SOURCE__ */ 76 #endif 77 #endif /* __minix */ 78 79 #ifndef __LIBC12_SOURCE__ 80 int sigaction(int, const struct sigaction * __restrict, 81 struct sigaction * __restrict) __RENAME(__sigaction14); 82 #if defined(__minix) && defined(_SYSTEM) 83 #define sigaddset(set, sig) __sigaddset((set), (sig)) 84 #define sigdelset(set, sig) __sigdelset((set), (sig)) 85 #define sigemptyset(set) __sigemptyset((set)) 86 #define sigfillset(set) __sigfillset((set)) 87 #define sigismember(set, sig) __sigismember((set), (sig)) 88 #else 89 int sigaddset(sigset_t *, int) __RENAME(__sigaddset14); 90 int sigdelset(sigset_t *, int) __RENAME(__sigdelset14); 91 int sigemptyset(sigset_t *) __RENAME(__sigemptyset14); 92 int sigfillset(sigset_t *) __RENAME(__sigfillset14); 93 int sigismember(const sigset_t *, int) __RENAME(__sigismember14); 94 #endif 95 int sigpending(sigset_t *) __RENAME(__sigpending14); 96 int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict) 97 __RENAME(__sigprocmask14); 98 int sigsuspend(const sigset_t *) __RENAME(__sigsuspend14); 99 100 #if defined(__c99inline) || defined(__SIGSETOPS_BODY) 101 102 #if defined(__SIGSETOPS_BODY) 103 #undef __c99inline 104 #define __c99inline 105 #endif 106 107 /* note: this appears in both errno.h and signal.h */ 108 #ifndef __errno 109 int *__errno(void); 110 #define __errno __errno 111 #endif 112 113 /* the same as "errno" - but signal.h is not allowed to define that */ 114 #ifndef ___errno 115 #define ___errno (*__errno()) 116 #endif 117 118 #if !defined(__minix) || !defined(_SYSTEM) 119 __c99inline int 120 sigaddset(sigset_t *set, int signo) 121 { 122 if (signo <= 0 || signo >= _NSIG) { 123 ___errno = 22; /* EINVAL */ 124 return (-1); 125 } 126 __sigaddset(set, signo); 127 return (0); 128 } 129 130 __c99inline int 131 sigdelset(sigset_t *set, int signo) 132 { 133 if (signo <= 0 || signo >= _NSIG) { 134 ___errno = 22; /* EINVAL */ 135 return (-1); 136 } 137 __sigdelset(set, signo); 138 return (0); 139 } 140 141 __c99inline int 142 sigismember(const sigset_t *set, int signo) 143 { 144 if (signo <= 0 || signo >= _NSIG) { 145 ___errno = 22; /* EINVAL */ 146 return (-1); 147 } 148 return (__sigismember(set, signo)); 149 } 150 151 __c99inline int 152 sigemptyset(sigset_t *set) 153 { 154 __sigemptyset(set); 155 return (0); 156 } 157 158 __c99inline int 159 sigfillset(sigset_t *set) 160 { 161 __sigfillset(set); 162 return (0); 163 } 164 #endif /* !defined(__minix) || !defined(_SYSTEM) */ 165 #endif /* __c99inline */ 166 #endif /* !__LIBC12_SOURCE__ */ 167 168 /* 169 * X/Open CAE Specification Issue 4 Version 2 170 */ 171 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 172 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 173 int killpg(pid_t, int); 174 int siginterrupt(int, int); 175 #ifndef __minix 176 int sigstack(const struct sigstack *, struct sigstack *); 177 #ifndef __LIBC12_SOURCE__ 178 int sigaltstack(const stack_t * __restrict, stack_t * __restrict) 179 __RENAME(__sigaltstack14); 180 #endif 181 #endif /* !__minix */ 182 int sighold(int); 183 int sigignore(int); 184 int sigpause(int); 185 int sigrelse(int); 186 void (*sigset (int, void (*)(int)))(int); 187 #endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */ 188 189 190 /* 191 * X/Open CAE Specification Issue 5; IEEE Std 1003.1b-1993 (POSIX) 192 */ 193 #if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \ 194 defined(_NETBSD_SOURCE) 195 #ifndef __minix 196 int sigwait (const sigset_t * __restrict, int * __restrict); 197 int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict); 198 #endif /* !__minix */ 199 void psiginfo(const siginfo_t *, const char *); 200 201 #ifndef __minix 202 #ifndef __LIBC12_SOURCE__ 203 struct timespec; 204 int sigtimedwait(const sigset_t * __restrict, 205 siginfo_t * __restrict, const struct timespec * __restrict) 206 __RENAME(__sigtimedwait50); 207 int __sigtimedwait(const sigset_t * __restrict, 208 siginfo_t * __restrict, struct timespec * __restrict) 209 __RENAME(____sigtimedwait50); 210 #endif 211 #endif /* !__minix */ 212 #endif /* _POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE_EXTENDED || ... */ 213 214 215 #if defined(_NETBSD_SOURCE) 216 #ifndef __minix 217 #ifndef __PSIGNAL_DECLARED 218 #define __PSIGNAL_DECLARED 219 /* also in unistd.h */ 220 void psignal(int, const char *); 221 #endif /* __PSIGNAL_DECLARED */ 222 #endif /* !__minix */ 223 int sigblock(int); 224 int sigsetmask(int); 225 #endif /* _NETBSD_SOURCE */ 226 227 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 228 __END_DECLS 229 230 #endif /* !_SIGNAL_H_ */ 231