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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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