signal.h revision 1.49
1 /* $NetBSD: signal.h,v 1.49 2008/02/24 23:01:19 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 #ifndef __errno 93 int *__errno(void); 94 #define __errno __errno 95 #endif 96 97 /* the same as "errno" - but signal.h is not allowed to define that */ 98 #ifndef ___errno 99 #define ___errno (*__errno()) 100 #endif 101 102 #ifndef _SIGINLINE 103 #define _SIGINLINE extern __inline 104 #endif 105 106 _SIGINLINE int 107 sigaddset(sigset_t *set, int signo) 108 { 109 if (signo <= 0 || signo >= _NSIG) { 110 ___errno = 22; /* EINVAL */ 111 return (-1); 112 } 113 __sigaddset(set, signo); 114 return (0); 115 } 116 117 _SIGINLINE int 118 sigdelset(sigset_t *set, int signo) 119 { 120 if (signo <= 0 || signo >= _NSIG) { 121 ___errno = 22; /* EINVAL */ 122 return (-1); 123 } 124 __sigdelset(set, signo); 125 return (0); 126 } 127 128 _SIGINLINE int 129 sigismember(const sigset_t *set, int signo) 130 { 131 if (signo <= 0 || signo >= _NSIG) { 132 ___errno = 22; /* EINVAL */ 133 return (-1); 134 } 135 return (__sigismember(set, signo)); 136 } 137 138 _SIGINLINE int 139 sigemptyset(sigset_t *set) 140 { 141 __sigemptyset(set); 142 return (0); 143 } 144 145 _SIGINLINE int 146 sigfillset(sigset_t *set) 147 { 148 __sigfillset(set); 149 return (0); 150 } 151 #endif /* (__GNUC__ && __STDC__) || _LIBC */ 152 #endif /* !__LIBC12_SOURCE__ */ 153 154 /* 155 * X/Open CAE Specification Issue 4 Version 2 156 */ 157 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 158 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 159 int killpg(pid_t, int); 160 int siginterrupt(int, int); 161 int sigstack(const struct sigstack *, struct sigstack *); 162 #ifndef __LIBC12_SOURCE__ 163 int sigaltstack(const stack_t * __restrict, stack_t * __restrict) 164 __RENAME(__sigaltstack14); 165 #endif 166 int sighold(int); 167 int sigignore(int); 168 int sigpause(int); 169 int sigrelse(int); 170 void (*sigset (int, void (*)(int)))(int); 171 #endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */ 172 173 174 /* 175 * X/Open CAE Specification Issue 5; IEEE Std 1003.1b-1993 (POSIX) 176 */ 177 #if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \ 178 defined(_NETBSD_SOURCE) 179 int sigwait (const sigset_t * __restrict, int * __restrict); 180 int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict); 181 182 struct timespec; 183 int sigtimedwait(const sigset_t * __restrict, 184 siginfo_t * __restrict, const struct timespec * __restrict); 185 int __sigtimedwait(const sigset_t * __restrict, 186 siginfo_t * __restrict, struct timespec * __restrict); 187 #endif /* _POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE_EXTENDED || ... */ 188 189 190 #if defined(_NETBSD_SOURCE) 191 #ifndef __PSIGNAL_DECLARED 192 #define __PSIGNAL_DECLARED 193 /* also in unistd.h */ 194 void psignal(unsigned int, const char *); 195 #endif /* __PSIGNAL_DECLARED */ 196 int sigblock(int); 197 int sigsetmask(int); 198 #endif /* _NETBSD_SOURCE */ 199 200 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 201 __END_DECLS 202 203 #endif /* !_SIGNAL_H_ */ 204
Indexes created Fri Oct 17 09:09:57 GMT 2025