signal.h revision 1.53
1/* $NetBSD: signal.h,v 1.53 2010/07/31 00:04:42 joerg 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) 48extern const char *const *sys_signame __RENAME(__sys_signame14); 49#ifndef __SYS_SIGLIST_DECLARED 50#define __SYS_SIGLIST_DECLARED 51/* also in unistd.h */ 52extern const char *const *sys_siglist __RENAME(__sys_siglist14); 53#endif /* __SYS_SIGLIST_DECLARED */ 54extern const int sys_nsig __RENAME(__sys_nsig14); 55#endif 56 57__BEGIN_DECLS 58int raise(int); 59#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 60 defined(_NETBSD_SOURCE) 61int kill(pid_t, int); 62int __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) 67int pthread_sigmask(int, const sigset_t * __restrict, 68 sigset_t * __restrict); 69int pthread_kill(pthread_t, int); 70int __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__ 78int sigaction(int, const struct sigaction * __restrict, 79 struct sigaction * __restrict) __RENAME(__sigaction14); 80int sigaddset(sigset_t *, int) __RENAME(__sigaddset14); 81int sigdelset(sigset_t *, int) __RENAME(__sigdelset14); 82int sigemptyset(sigset_t *) __RENAME(__sigemptyset14); 83int sigfillset(sigset_t *) __RENAME(__sigfillset14); 84int sigismember(const sigset_t *, int) __RENAME(__sigismember14); 85int sigpending(sigset_t *) __RENAME(__sigpending14); 86int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict) 87 __RENAME(__sigprocmask14); 88int sigsuspend(const sigset_t *) __RENAME(__sigsuspend14); 89 90#if defined(__c99inline) || defined(__SIGSETOPS_BODY) 91 92#if defined(__SIGSETOPS_BODY) 93#undef __c99inline 94#define __c99inline 95#endif 96 97/* note: this appears in both errno.h and signal.h */ 98#ifndef __errno 99int *__errno(void); 100#define __errno __errno 101#endif 102 103/* the same as "errno" - but signal.h is not allowed to define that */ 104#ifndef ___errno 105#define ___errno (*__errno()) 106#endif 107 108__c99inline int 109sigaddset(sigset_t *set, int signo) 110{ 111 if (signo <= 0 || signo >= _NSIG) { 112 ___errno = 22; /* EINVAL */ 113 return (-1); 114 } 115 __sigaddset(set, signo); 116 return (0); 117} 118 119__c99inline int 120sigdelset(sigset_t *set, int signo) 121{ 122 if (signo <= 0 || signo >= _NSIG) { 123 ___errno = 22; /* EINVAL */ 124 return (-1); 125 } 126 __sigdelset(set, signo); 127 return (0); 128} 129 130__c99inline int 131sigismember(const sigset_t *set, int signo) 132{ 133 if (signo <= 0 || signo >= _NSIG) { 134 ___errno = 22; /* EINVAL */ 135 return (-1); 136 } 137 return (__sigismember(set, signo)); 138} 139 140__c99inline int 141sigemptyset(sigset_t *set) 142{ 143 __sigemptyset(set); 144 return (0); 145} 146 147__c99inline int 148sigfillset(sigset_t *set) 149{ 150 __sigfillset(set); 151 return (0); 152} 153#endif /* __c99inline */ 154#endif /* !__LIBC12_SOURCE__ */ 155 156/* 157 * X/Open CAE Specification Issue 4 Version 2 158 */ 159#if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 160 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 161int killpg(pid_t, int); 162int siginterrupt(int, int); 163int sigstack(const struct sigstack *, struct sigstack *); 164#ifndef __LIBC12_SOURCE__ 165int sigaltstack(const stack_t * __restrict, stack_t * __restrict) 166 __RENAME(__sigaltstack14); 167#endif 168int sighold(int); 169int sigignore(int); 170int sigpause(int); 171int sigrelse(int); 172void (*sigset (int, void (*)(int)))(int); 173#endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */ 174 175 176/* 177 * X/Open CAE Specification Issue 5; IEEE Std 1003.1b-1993 (POSIX) 178 */ 179#if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \ 180 defined(_NETBSD_SOURCE) 181int sigwait (const sigset_t * __restrict, int * __restrict); 182int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict); 183 184#ifndef __LIBC12_SOURCE__ 185struct timespec; 186int sigtimedwait(const sigset_t * __restrict, 187 siginfo_t * __restrict, const struct timespec * __restrict) 188 __RENAME(__sigtimedwait50); 189int __sigtimedwait(const sigset_t * __restrict, 190 siginfo_t * __restrict, struct timespec * __restrict) 191 __RENAME(____sigtimedwait50); 192#endif 193#endif /* _POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE_EXTENDED || ... */ 194 195 196#if defined(_NETBSD_SOURCE) 197#ifndef __PSIGNAL_DECLARED 198#define __PSIGNAL_DECLARED 199/* also in unistd.h */ 200void psignal(unsigned int, const char *); 201#endif /* __PSIGNAL_DECLARED */ 202int sigblock(int); 203int sigsetmask(int); 204#endif /* _NETBSD_SOURCE */ 205 206#endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 207__END_DECLS 208 209#endif /* !_SIGNAL_H_ */ 210