diff options
Diffstat (limited to 'signal/signal.h')
| -rw-r--r-- | signal/signal.h | 364 |
1 files changed, 0 insertions, 364 deletions
diff --git a/signal/signal.h b/signal/signal.h deleted file mode 100644 index b3114736a5..0000000000 --- a/signal/signal.h +++ /dev/null @@ -1,364 +0,0 @@ -/* Copyright (C) 1991-2017 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 - <http://www.gnu.org/licenses/>. */ - -/* - * ISO C99 Standard: 7.14 Signal handling <signal.h> - */ - -#ifndef _SIGNAL_H -#define _SIGNAL_H - -#include <features.h> - -__BEGIN_DECLS - -#include <bits/types.h> -#include <bits/signum.h> - -#include <bits/types/sig_atomic_t.h> - -#if defined __USE_POSIX -#include <bits/types/sigset_t.h> -#endif - -#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. */ -# include <bits/types/struct_timespec.h> -#endif - -#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED -# include <bits/types/siginfo_t.h> -# include <bits/siginfo-consts.h> -#endif - -#ifdef __USE_POSIX199309 -# include <bits/types/sigevent_t.h> -# include <bits/sigevent-consts.h> -#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. */ -#ifdef __USE_MISC -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 - -#if defined __USE_XOPEN && !defined __USE_XOPEN2K8 -/* 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_MISC || 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 __pgrp, int __sig) __THROW; -#endif /* Use misc || X/Open Unix. */ - -/* Raise signal SIG, i.e., send SIG to yourself. */ -extern int raise (int __sig) __THROW; - -#ifdef __USE_MISC -/* SVID names for the same things. */ -extern __sighandler_t ssignal (int __sig, __sighandler_t __handler) - __THROW; -extern int gsignal (int __sig) __THROW; -#endif /* Use misc. */ - -#ifdef __USE_XOPEN2K8 -/* Print a message describing the meaning of the given signal number. */ -extern void psignal (int __sig, const char *__s); - -/* Print a message describing the meaning of the given signal information. */ -extern void psiginfo (const siginfo_t *__pinfo, const char *__s); -#endif /* POSIX 2008. */ - - - -/* The `sigpause' function in X/Open defines the argument as the - signal number. This requires redirecting to another function - because the default version in glibc uses an old BSD interface. - - This function is a cancellation point and therefore not marked with - __THROW. */ - -#ifdef __USE_XOPEN -# ifdef __GNUC__ -extern int sigpause (int __sig) __asm__ ("__xpg_sigpause"); -# else -extern int __sigpause (int __sig_or_mask, int __is_sig); -/* Remove a signal from the signal mask and suspend the process. */ -# define sigpause(sig) __sigpause ((sig), 1) -# endif -#endif - - -#ifdef __USE_MISC -/* None of the following functions should be used anymore. They are here - only for compatibility. A single word (`int') is not guaranteed to be - enough to hold a complete signal mask and therefore these functions - simply do not work in many situations. Use `sigprocmask' instead. */ - -/* Compute mask for signal SIG. */ -# define sigmask(sig) ((int)(1u << ((sig) - 1))) - -/* Block signals in MASK, returning the old mask. */ -extern int sigblock (int __mask) __THROW __attribute_deprecated__; - -/* Set the mask of blocked signals to MASK, returning the old mask. */ -extern int sigsetmask (int __mask) __THROW __attribute_deprecated__; - -/* Return currently selected signal mask. */ -extern int siggetmask (void) __THROW __attribute_deprecated__; -#endif /* Use misc. */ - - -#ifdef __USE_MISC -# define NSIG _NSIG -#endif - -#ifdef __USE_GNU -typedef __sighandler_t sighandler_t; -#endif - -/* 4.4 BSD uses the name `sig_t' for this. */ -#ifdef __USE_MISC -typedef __sighandler_t sig_t; -#endif - -#ifdef __USE_POSIX - -/* Clear all signals from SET. */ -extern int sigemptyset (sigset_t *__set) __THROW __nonnull ((1)); - -/* Set all signals in SET. */ -extern int sigfillset (sigset_t *__set) __THROW __nonnull ((1)); - -/* Add SIGNO to SET. */ -extern int sigaddset (sigset_t *__set, int __signo) __THROW __nonnull ((1)); - -/* Remove SIGNO from SET. */ -extern int sigdelset (sigset_t *__set, int __signo) __THROW __nonnull ((1)); - -/* Return 1 if SIGNO is in SET, 0 if not. */ -extern int sigismember (const sigset_t *__set, int __signo) - __THROW __nonnull ((1)); - -# ifdef __USE_GNU -/* Return non-empty value is SET is not empty. */ -extern int sigisemptyset (const sigset_t *__set) __THROW __nonnull ((1)); - -/* Build new signal set by combining the two inputs set using logical AND. */ -extern int sigandset (sigset_t *__set, const sigset_t *__left, - const sigset_t *__right) __THROW __nonnull ((1, 2, 3)); - -/* Build new signal set by combining the two inputs set using logical OR. */ -extern int sigorset (sigset_t *__set, const sigset_t *__left, - const sigset_t *__right) __THROW __nonnull ((1, 2, 3)); -# endif /* GNU */ - -/* Get the system-specific definitions of `struct sigaction' - and the `SA_*' and `SIG_*'. constants. */ -# include <bits/sigaction.h> - -/* Get and/or change the set of blocked signals. */ -extern int sigprocmask (int __how, const sigset_t *__restrict __set, - sigset_t *__restrict __oset) __THROW; - -/* Change the set of blocked signals to SET, - wait until a signal arrives, and restore the set of blocked signals. - - This function is a cancellation point and therefore not marked with - __THROW. */ -extern int sigsuspend (const sigset_t *__set) __nonnull ((1)); - -/* Get and/or set the action for signal SIG. */ -extern int sigaction (int __sig, const struct sigaction *__restrict __act, - struct sigaction *__restrict __oact) __THROW; - -/* Put in SET all signals that are blocked and waiting to be delivered. */ -extern int sigpending (sigset_t *__set) __THROW __nonnull ((1)); - - -/* Select any of pending signals from SET or wait for any to arrive. - - This function is a cancellation point and therefore not marked with - __THROW. */ -extern int sigwait (const sigset_t *__restrict __set, int *__restrict __sig) - __nonnull ((1, 2)); - -# ifdef __USE_POSIX199309 -/* Select any of pending signals from SET and place information in INFO. - - This function is a cancellation point and therefore not marked with - __THROW. */ -extern int sigwaitinfo (const sigset_t *__restrict __set, - siginfo_t *__restrict __info) __nonnull ((1)); - -/* Select any of pending signals from SET and place information in INFO. - Wait the time specified by TIMEOUT if no signal is pending. - - This function is a cancellation point and therefore not marked with - __THROW. */ -extern int sigtimedwait (const sigset_t *__restrict __set, - siginfo_t *__restrict __info, - const struct timespec *__restrict __timeout) - __nonnull ((1)); - -/* Send signal SIG to the process PID. Associate data in VAL with the - signal. */ -extern int sigqueue (__pid_t __pid, int __sig, const union sigval __val) - __THROW; -# endif /* Use POSIX 199306. */ - -#endif /* Use POSIX. */ - -#ifdef __USE_MISC - -/* Names of the signals. This variable exists only for compatibility. - Use `strsignal' instead (see <string.h>). */ -extern const char *const _sys_siglist[_NSIG]; -extern const char *const sys_siglist[_NSIG]; - - -/* Get machine-dependent `struct sigcontext' and signal subcodes. */ -# include <bits/sigcontext.h> - -/* Restore the state saved in SCP. */ -extern int sigreturn (struct sigcontext *__scp) __THROW; - -#endif /* Use misc. */ - - -#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 -# define __need_size_t -# include <stddef.h> - -/* If INTERRUPT is nonzero, make signal SIG interrupt system calls - (causing them to fail with EINTR); if INTERRUPT is zero, make system - calls be restarted after signal SIG. */ -extern int siginterrupt (int __sig, int __interrupt) __THROW; - -# include <bits/sigstack.h> -# include <bits/types/stack_t.h> -# include <bits/ss_flags.h> -# if defined __USE_XOPEN || defined __USE_XOPEN2K8 -/* This will define `ucontext_t' and `mcontext_t'. */ -# include <sys/ucontext.h> -# endif - -/* Alternate signal handler stack interface. - This interface should always be preferred over `sigstack'. */ -extern int sigaltstack (const stack_t *__restrict __ss, - stack_t *__restrict __oss) __THROW; - -#endif /* Use POSIX.1-2008 or X/Open Unix. */ - -#if ((defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K8) \ - || defined __USE_MISC) -# include <bits/types/struct_sigstack.h> -#endif - -#if ((defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K) \ - || defined __USE_MISC) -/* Run signals handlers on the stack specified by SS (if not NULL). - If OSS is not NULL, it is filled in with the old signal stack status. - This interface is obsolete and on many platform not implemented. */ -extern int sigstack (struct sigstack *__ss, struct sigstack *__oss) - __THROW __attribute_deprecated__; -#endif - -#ifdef __USE_XOPEN_EXTENDED -/* Simplified interface for signal management. */ - -/* Add SIG to the calling process' signal mask. */ -extern int sighold (int __sig) __THROW; - -/* Remove SIG from the calling process' signal mask. */ -extern int sigrelse (int __sig) __THROW; - -/* Set the disposition of SIG to SIG_IGN. */ -extern int sigignore (int __sig) __THROW; - -/* Set the disposition of SIG. */ -extern __sighandler_t sigset (int __sig, __sighandler_t __disp) __THROW; -#endif - -#if defined __USE_POSIX199506 || defined __USE_UNIX98 -/* Some of the functions for handling signals in threaded programs must - be defined here. */ -# include <bits/pthreadtypes.h> -# include <bits/sigthread.h> -#endif /* use Unix98 */ - -/* The following functions are used internally in the C library and in - other code which need deep insights. */ - -/* Return number of available real-time signal with highest priority. */ -extern int __libc_current_sigrtmin (void) __THROW; -/* Return number of available real-time signal with lowest priority. */ -extern int __libc_current_sigrtmax (void) __THROW; - -__END_DECLS - -#endif /* not signal.h */ |