signal.h revision 34319
1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)signal.h 8.3 (Berkeley) 3/30/94 34 */ 35 36#ifndef _SIGNAL_H_ 37#define _SIGNAL_H_ 38 39#include <sys/cdefs.h> 40#include <sys/signal.h> 41#include <machine/ansi.h> 42#include <sys/_posix.h> 43 44#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) 45extern __const char *__const sys_signame[NSIG]; 46extern __const char *__const sys_siglist[NSIG]; 47#endif 48 49__BEGIN_DECLS 50int raise __P((int)); 51#ifndef _ANSI_SOURCE 52int kill __P((_BSD_PID_T_, int)); 53int sigaction __P((int, const struct sigaction *, struct sigaction *)); 54int sigaddset __P((sigset_t *, int)); 55int sigdelset __P((sigset_t *, int)); 56int sigemptyset __P((sigset_t *)); 57int sigfillset __P((sigset_t *)); 58int sigismember __P((const sigset_t *, int)); 59#ifndef _POSIX_SOURCE 60struct timespec; 61int signanosleep __P((const struct timespec *, struct timespec *, 62 sigset_t *)); 63#endif 64int sigpending __P((sigset_t *)); 65int sigprocmask __P((int, const sigset_t *, sigset_t *)); 66int sigsuspend __P((const sigset_t *)); 67 68#ifdef _POSIX4_VISIBLE_HISTORICALLY 69 70/* Async event notification */ 71 72union sigval { 73 int sival_int; 74 void *sival_ptr; 75}; 76struct sigevent { 77 int sigev_notify; /* Notification type */ 78 int sigev_signo; /* Signal number */ 79 union sigval sigev_value; /* Signal value */ 80}; 81#define SIGEV_NONE 0 /* No async notification */ 82#define SIGEV_SIGNAL 1 /* Queue signal with value */ 83 84#endif /* _POSIX4_VISIBLE_HISTORICALLY */ 85 86#ifdef _POSIX4_VISIBLE 87 88typedef struct siginfo { 89 int si_signo; /* Signal number */ 90 int si_code; /* Cause of the signal */ 91 union sigval si_value; /* Signal value */ 92} siginfo_t; 93 94__BEGIN_DECLS 95int sigqueue __P((_BSD_PID_T_, int, const union sigval)); 96int sigtimedwait __P((const sigset_t *, siginfo_t *)); 97int sigwaitinfo __P((const sigset_t *, siginfo_t *)); 98__END_DECLS 99 100#endif 101#ifndef _POSIX_SOURCE 102int killpg __P((_BSD_PID_T_, int)); 103int sigaltstack __P((const struct sigaltstack *, struct sigaltstack *)); 104int sigblock __P((int)); 105int siginterrupt __P((int, int)); 106int sigpause __P((int)); 107int sigreturn __P((struct sigcontext *)); 108int sigsetmask __P((int)); 109int sigstack __P((const struct sigstack *, struct sigstack *)); 110int sigvec __P((int, struct sigvec *, struct sigvec *)); 111void psignal __P((unsigned int, const char *)); 112#endif /* !_POSIX_SOURCE */ 113#endif /* !_ANSI_SOURCE */ 114__END_DECLS 115 116#ifndef _ANSI_SOURCE 117/* List definitions after function declarations, or Reiser cpp gets upset. */ 118#define sigaddset(set, signo) (*(set) |= 1 << ((signo) - 1), 0) 119#define sigdelset(set, signo) (*(set) &= ~(1 << ((signo) - 1)), 0) 120#define sigemptyset(set) (*(set) = 0, 0) 121#define sigfillset(set) (*(set) = ~(sigset_t)0, 0) 122#define sigismember(set, signo) ((*(set) & (1 << ((signo) - 1))) != 0) 123#endif /* !_ANSI_SOURCE */ 124 125#endif /* !_SIGNAL_H_ */ 126