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/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/*
* ANSI Standard: 4.7 SIGNAL HANDLING <signal.h>
*/
#ifndef _SIGNAL_H
#define _SIGNAL_H
#include <features.h>
#include <sys/types.h>
#include <linux/signal.h>
#ifndef SIGCLD
#define SIGCLD SIGCHLD
#endif
/* SVR4 */
#ifndef SA_RESETHAND
#define SA_RESETHAND SA_ONESHOT
#endif
/* SVR4 */
#ifndef SA_NODEFER
#define SA_NODEFER SA_NOMASK
#endif
typedef int sig_atomic_t;
typedef __sighandler_t SignalHandler;
#ifndef BADSIG
#define BADSIG SIG_ERR
#endif
/* The Interviews version also has these ... */
#define SignalBad ((SignalHandler)-1)
#define SignalDefault ((SignalHandler)0)
#define SignalIgnore ((SignalHandler)1)
__BEGIN_DECLS
extern __const char * __const sys_siglist[];
extern __const char * __const _sys_siglist[];
extern __sighandler_t
signal __P ((int __sig, __sighandler_t));
extern __sighandler_t
__signal __P ((int __sig, __sighandler_t, int flags));
extern int raise __P ((int __sig));
extern int __kill __P ((pid_t __pid, int __sig));
extern int kill __P ((pid_t __pid, int __sig));
extern int killpg __P ((int __pgrp, int __sig));
extern int sigaddset __P ((sigset_t *__mask, int __sig));
extern int sigdelset __P ((sigset_t *__mask, int __sig));
extern int sigemptyset __P ((sigset_t *__mask));
extern int sigfillset __P ((sigset_t *__mask));
extern int sigismember __P ((__const sigset_t *__mask, int __sig));
extern int sigpending __P ((sigset_t *__set));
extern int __sigprocmask __P ((int __how, __const sigset_t *__set,
sigset_t *__oldset));
extern int sigprocmask __P ((int __how, __const sigset_t *__set,
sigset_t *__oldset));
extern int sigsuspend __P ((__const sigset_t *sigmask));
extern int __sigaction __P ((int __sig, struct sigaction *__act,
struct sigaction *__oldact));
extern int sigaction __P ((int __sig, struct sigaction *__act,
struct sigaction *__oldact));
#define __sigemptyset(set) ((*(set) = 0L), 0)
#define __sigfillset(set) ((*(set) = -1L), 0)
#define __sigaddset(set, sig) ((*(set) |= __sigmask (sig)), 0)
#define __sigdelset(set, sig) ((*(set) &= ~__sigmask (sig)), 0)
#define __sigismember(set, sig) ((*(set) & __sigmask (sig)) ? 1 : 0)
#if 1
#define sigemptyset __sigemptyset
#define sigfillset __sigfillset
/* We don't do that any more since it causes problems due to
* "sig" > _NSIG and "sig" < 1. It isn't worth the touble to make
* them inline and static. Use __sigxxxxx if you want speed with
* correct "sig".
*/
#if 1
#define sigaddset __sigaddset
#define sigdelset __sigdelset
#define sigismember __sigismember
#endif
#endif
/* Return a mask that includes SIG only. */
#define __sigmask(sig) (1 << ((sig) - 1))
extern int __sigsetmask __P ((int __mask));
extern int __siggetmask __P ((void));
extern int __sigblock __P ((int __mask));
extern int __sigpause __P ((int __mask));
#ifdef __USE_SVID
/* SVID names for the same things. */
extern __sighandler_t ssignal __P ((int __sig, __sighandler_t __handler));
extern int gsignal __P ((int __sig));
#endif /* Use SVID. */
/* BSD */
#ifdef __USE_BSD
#define sigmask __sigmask
extern int sigblock __P ((int __mask));
extern int sigpause __P ((int __mask));
extern int sigsetmask __P ((int __mask));
extern int siggetmask __P ((void));
extern void psignal __P ((int __sig, __const char *__str));
extern int siginterrupt __P ((int __sig, int __flag));
/* The `sig' bit is set if the interrupt on it
* is enabled via siginterrupt (). */
extern sigset_t _sigintr;
#endif /* Use BSD. */
#ifdef __USE_BSD_SIGNAL
extern __sighandler_t
__bsd_signal __P ((int __sig, __sighandler_t));
#define signal __bsd_signal
#endif /* __USE_BSD_SIGNAL */
__END_DECLS
#if _MIT_POSIX_THREADS
#define __SIGFILLSET 0xffffffff
#define __SIGEMPTYSET 0
#define __SIGADDSET(s,n) ((*s) |= (1 << ((n) - 1)))
#define __SIGDELSET(s,n) ((*s) &= ~(1 << ((n) - 1)))
#define __SIGISMEMBER(s,n) ((*s) & (1 << ((n) - 1)))
#endif
#endif /* _SIGNAL_H */
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