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Diffstat (limited to 'include/signal.h')
| -rw-r--r-- | include/signal.h | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/include/signal.h b/include/signal.h new file mode 100644 index 000000000..9daf0c07c --- /dev/null +++ b/include/signal.h @@ -0,0 +1,166 @@ +/* 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 */ |