0
W
0 , Yl=J76 ˷qLZ7
. _I|+ 54 Y/* Copyright (C) 1991-2004,2007,2009,2010,2012 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
. */
/*
* ISO C99 Standard: 7.14 Signal handling
*/
#ifndef _SIGNAL_H
#if !defined __need_sig_atomic_t && !defined __need_sigset_t
# define _SIGNAL_H
#endif
#include
__BEGIN_DECLS
#include /* __sigset_t, __sig_atomic_t. */
/* An integral type that can be modified atomically, without the
possibility of a signal arriving in the middle of the operation. */
#if defined __need_sig_atomic_t || defined _SIGNAL_H
# ifndef __sig_atomic_t_defined
# define __sig_atomic_t_defined
__BEGIN_NAMESPACE_STD
typedef __sig_atomic_t sig_atomic_t;
__END_NAMESPACE_STD
# endif
# undef __need_sig_atomic_t
#endif
#if defined __need_sigset_t || (defined _SIGNAL_H && defined __USE_POSIX)
# ifndef __sigset_t_defined
# define __sigset_t_defined
typedef __sigset_t sigset_t;
# endif
# undef __need_sigset_t
#endif
#ifdef _SIGNAL_H
#include
#include
#if defined __USE_XOPEN || defined __USE_XOPEN2K
# ifndef __pid_t_defined
typedef __pid_t pid_t;
# define __pid_t_defined
#endif
#ifdef __USE_XOPEN
# endif
# ifndef __uid_t_defined
typedef __uid_t uid_t;
# define __uid_t_defined
# endif
#endif /* Unix98 */
#ifdef __USE_POSIX199309
/* We need `struct timespec' later on. */
# define __need_timespec
# include
#endif
#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED
/* Get the `siginfo_t' type plus the needed symbols. */
# include
#endif
/* Type of a signal handler. */
typedef void (*__sighandler_t) (int);
/* The X/Open definition of `signal' specifies the SVID semantic. Use
the additional function `sysv_signal' when X/Open compatibility is
requested. */
extern __sighandler_t __sysv_signal (int __sig, __sighandler_t __handler)
__THROW;
#ifdef __USE_GNU
extern __sighandler_t sysv_signal (int __sig, __sighandler_t __handler)
__THROW;
#endif
/* Set the handler for the signal SIG to HANDLER, returning the old
handler, or SIG_ERR on error.
By default `signal' has the BSD semantic. */
__BEGIN_NAMESPACE_STD
#ifdef __USE_BSD
extern __sighandler_t signal (int __sig, __sighandler_t __handler)
__THROW;
#else
/* Make sure the used `signal' implementation is the SVID version. */
# ifdef __REDIRECT_NTH
extern __sighandler_t __REDIRECT_NTH (signal,
(int __sig, __sighandler_t __handler),
__sysv_signal);
# else
# define signal __sysv_signal
# endif
#endif
__END_NAMESPACE_STD
#ifdef __USE_XOPEN
/* The X/Open definition of `signal' conflicts with the BSD version.
So they defined another function `bsd_signal'. */
extern __sighandler_t bsd_signal (int __sig, __sighandler_t __handler)
__THROW;
#endif
/* Send signal SIG to process number PID. If PID is zero,
send SIG to all processes in the current process's process group.
If PID is < -1, send SIG to all processes in process group - PID. */
#ifdef __USE_POSIX
extern int kill (__pid_t __pid, int __sig) __THROW;
#endif /* Use POSIX. */
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Send SIG to all processes in process group PGRP.
If PGRP is zero, send SIG to all processes in
the current process's process group. */
extern int killpg (__pid_t __p