signal.h revision 1.50
1 /* $NetBSD: signal.h,v 1.50 2008/03/03 06:57:48 dholland 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 #if (_POSIX_C_SOURCE - 0L) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 66 defined(_NETBSD_SOURCE) 67 int pthread_sigmask(int, const sigset_t * __restrict, 68 sigset_t * __restrict); 69 int pthread_kill(pthread_t, int); 70 int __libc_thr_sigsetmask(int, const sigset_t * __restrict, 71 sigset_t * __restrict); 72 #ifndef __LIBPTHREAD_SOURCE__ 73 #define pthread_sigmask __libc_thr_sigsetmask 74 #endif /* __LIBPTHREAD_SOURCE__ */ 75 #endif 76 77 #ifndef __LIBC12_SOURCE__ 78 int sigaction(int, const struct sigaction * __restrict, 79 struct sigaction * __restrict) __RENAME(__sigaction14); 80 int sigaddset(sigset_t *, int) __RENAME(__sigaddset14); 81 int sigdelset(sigset_t *, int) __RENAME(__sigdelset14); 82 int sigemptyset(sigset_t *) __RENAME(__sigemptyset14); 83 int sigfillset(sigset_t *) __RENAME(__sigfillset14); 84 int sigismember(const sigset_t *, int) __RENAME(__sigismember14); 85 int sigpending(sigset_t *) __RENAME(__sigpending14); 86 int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict) 87 __RENAME(__sigprocmask14); 88 int sigsuspend(const sigset_t *) __RENAME(__sigsuspend14); 89 90 #if (defined(__GNUC__) && defined(__STDC__)) || defined(_SIGINLINE) 91 92 /* note: this appears in both errno.h and signal.h */ 93 #ifndef __errno 94 int *__errno(void); 95 #define __errno __errno 96 #endif 97 98 /* the same as "errno" - but signal.h is not allowed to define that */ 99 #ifndef ___errno 100 #define ___errno (*__errno()) 101 #endif 102 103 #ifndef _SIGINLINE 104 #define _SIGINLINE extern __inline 105 #endif 106 107 _SIGINLINE int 108 sigaddset(sigset_t *set, int signo) 109 { 110 if (signo <= 0 || signo >= _NSIG) { 111 ___errno = 22; /* EINVAL */ 112 return (-1); 113 } 114 __sigaddset(set, signo); 115 return (0); 116 } 117 118 _SIGINLINE int 119 sigdelset(sigset_t *set, int signo) 120 { 121 if (signo <= 0 || signo >= _NSIG) { 122 ___errno = 22; /* EINVAL */ 123 return (-1); 124 } 125 __sigdelset(set, signo); 126 return (0); 127 } 128 129 _SIGINLINE int 130 sigismember(const sigset_t *set, int signo) 131 { 132 if (signo <= 0 || signo >= _NSIG) { 133 ___errno = 22; /* EINVAL */ 134 return (-1); 135 } 136 return (__sigismember(set, signo)); 137 } 138 139 _SIGINLINE int 140 sigemptyset(sigset_t *set) 141 { 142 __sigemptyset(set); 143 return (0); 144 } 145 146 _SIGINLINE int 147 sigfillset(sigset_t *set) 148 { 149 __sigfillset(set); 150 return (0); 151 } 152 #endif /* (__GNUC__ && __STDC__) || _LIBC */ 153 #endif /* !__LIBC12_SOURCE__ */ 154 155 /* 156 * X/Open CAE Specification Issue 4 Version 2 157 */ 158 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 159 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 160 int killpg(pid_t, int); 161 int siginterrupt(int, int); 162 int sigstack(const struct sigstack *, struct sigstack *); 163 #ifndef __LIBC12_SOURCE__ 164 int sigaltstack(const stack_t * __restrict, stack_t * __restrict) 165 __RENAME(__sigaltstack14); 166 #endif 167 int sighold(int); 168 int sigignore(int); 169 int sigpause(int); 170 int sigrelse(int); 171 void (*sigset (int, void (*)(int)))(int); 172 #endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */ 173 174 175 /* 176 * X/Open CAE Specification Issue 5; IEEE Std 1003.1b-1993 (POSIX) 177 */ 178 #if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \ 179 defined(_NETBSD_SOURCE) 180 int sigwait (const sigset_t * __restrict, int * __restrict); 181 int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict); 182 183 struct timespec; 184 int sigtimedwait(const sigset_t * __restrict, 185 siginfo_t * __restrict, const struct timespec * __restrict); 186 int __sigtimedwait(const sigset_t * __restrict, 187 siginfo_t * __restrict, struct timespec * __restrict); 188 #endif /* _POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE_EXTENDED || ... */ 189 190 191 #if defined(_NETBSD_SOURCE) 192 #ifndef __PSIGNAL_DECLARED 193 #define __PSIGNAL_DECLARED 194 /* also in unistd.h */ 195 void psignal(unsigned int, const char *); 196 #endif /* __PSIGNAL_DECLARED */ 197 int sigblock(int); 198 int sigsetmask(int); 199 #endif /* _NETBSD_SOURCE */ 200 201 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 202 __END_DECLS 203 204 #endif /* !_SIGNAL_H_ */ 205
Indexes created Fri Oct 17 00:09:41 GMT 2025