mirror/glibc
2
0
Fork 0
mirror of git://sourceware.org/git/glibc.git synced 2025-02-17 13:00:43 +08:00
Code Issues Packages Projects Releases Wiki Activity
01c901a56b
glibc/signal/signal.h
Ulrich Drepper 6d52618b15 Update from main archive 961219 
Thu Dec 19 23:28:33 1996  Ulrich Drepper  <drepper@cygnus.com>

	* resolv/resolv.h: Update from BIND 4.9.5-P1.
	* resolv/res_comp.c: Likewise.
	* resolv/res_debug.c: Likewise.
	* resolv/Banner: Update version number.

Thu Dec 19 20:58:53 1996  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dlfcn.h: Add extern "C" wrapper.

	* io/utime.h: Don't define NULL since this isn't allowed in POSIX.
	* io/sys/stat.h: Declare `lstat' only if __USE_BSD ||
	__USE_XOPEN_EXTENDED.
	* locale/locale.h: Define NULL.
	* math/math.c: Don't include <errno.h> to define math errors.
	* stdlib/stdlib.h: Likewise.
	* posix/unistd.h: Don't declare environ.
	* posix/sys/utsname.h (struct utsname): Declare member domainname
	as __domainname is !__USE_GNU.
	* signal/signal.h: Declare size_t only if __USE_BSD ||
	__USE_XOPEN_EXTENDED.
	* stdio/stdio.h: Don't declare cuserid when __USE_POSIX, but
	instead when __USE_XOPEN.
	* string/string.h: Define strndup only if __USE_GNU.
	* sysdeps/unix/sysv/linux/clock.c: New file.
	* sysdeps/unix/sysv/linux/timebits.h: Define CLOCKS_PER_SEC as
	1000000 per X/Open standard.
	* features.h: Add code to recognize _POSIX_C_SOURCE value 199309.
	Define __USE_POSIX199309.
	* posix/unistd.h: Declare fdatasync only if __USE_POSIX199309.
	* time/time.c: Declare nanosleep only if __USE_POSIX199309.
	Patches by Rüdiger Helsch <rh@unifix.de>.

	* locale/locale.h: Add declaration of newlocale and freelocale.

	* new-malloc/Makefile (distibute): Add mtrace.awk.
	(dist-routines): Add mcheck and mtrace.
	(install-lib, non-lib.a): Define as libmcheck.a.
	* new-malloc/malloc.h: Add declaration of __malloc_initialized.
	* new-malloc/mcheck.c: New file.
	* new-malloc/mcheck.h: New file.
	* new-malloc/mtrace.c: New file.
	* new-malloc/mtrace.awk: New file.

	* posix/unistd.h: Correct prototype for usleep.
	* sysdeps/unix/bsd/usleep.c: De-ANSI-declfy.  Correct return type.
	* sysdeps/unix/sysv/linux/usleep.c: Real implementation based on
	nanosleep.

	* signal/signal.h: Change protoype of __sigpause to take two
	arguments.  Remove prototype for sigpause.  Add two different
	macros named sigpause selected when __USE_BSD or __USE_XOPEN
	are defined.  This is necessary since the old BSD definition
	of theis function collides with the X/Open definition.
	* sysdeps/posix/sigpause.c: Change function definition to also
	fit X/Open definition.

	* sysdeps/libm-i387/e_exp.S: Make sure stack is empty when the
	function is left.
	* sysdeps/libm-i387/e_expl.S: Likewise.
	Patch by HJ Lu.

1996-12-17  Paul Eggert  <eggert@twinsun.com>

	* many, many files: Spelling corrections.
	* catgets/catgetsinfo.h (mmapped):
	Renamed from mmaped (in struct catalog_info.status).
	* mach/err_kern.sub (err_codes_unix), string/stratcliff.c (main):
	Fix spelling in message.
	* po/libc.pot: Fix spelling in message for `zic'; this anticipates
	a fix in the tzcode distribution.

Wed Dec 18 15:48:02 1996  Ulrich Drepper  <drepper@cygnus.com>

	* time/strftime.c: Implement ^ flag to cause output be converted
	to use upper case characters.

	* time/zic.c: Update from ADO tzcode1996n.

Wed Dec 18 14:29:24 1996  Erik Naggum  <erik@naggum.no>

	* time/strftime.c (add): Don't change global `i' until all is over.
	Define NULL is not already defined.

Tue Dec 17 09:49:03 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* libio/iovsprintf.c (_IO_vsprintf): Change `&sf' to `&sf._sbf._f'
	to avoid the need for a cast.
	* libio/iovsscanf.c (_IO_vsscanf): Likewise.

	* sunrpc/rpc/xdr.h: Add prototype for xdr_free.
1996-12-20 01:39:50 +00:00

280 lines
8.9 KiB
C
Raw Blame History

/* Copyright (C) 1991, 92, 93, 94, 95, 96 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 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/*
* ISO C Standard: 4.7 SIGNAL HANDLING <signal.h>
*/
#ifndef _SIGNAL_H
#if !defined(__need_sig_atomic_t) && !defined(__need_sigset_t)
#define _SIGNAL_H 1
#include <features.h>
#endif
__BEGIN_DECLS
#include <gnu/types.h>
#include <sigset.h> /* __sigset_t, __sig_atomic_t. */
#if !defined(__sig_atomic_t_defined) && \
(defined(_SIGNAL_H) || defined(__need_sig_atomic_t))
/* An integral type that can be modified atomically, without the
possibility of a signal arriving in the middle of the operation. */
typedef __sig_atomic_t sig_atomic_t;
#endif /* `sig_atomic_t' undefined and <signal.h> or need `sig_atomic_t'. */
#undef __need_sig_atomic_t
#ifdef _SIGNAL_H
#include <signum.h>
/* Type of a signal handler. */
typedef void (*__sighandler_t) __P ((int));
/* Set the handler for the signal SIG to HANDLER,
returning the old handler, or SIG_ERR on error. */
extern __sighandler_t signal __P ((int __sig, __sighandler_t __handler));
/* 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. */
extern int __kill __P ((__pid_t __pid, int __sig));
#ifdef __USE_POSIX
extern int kill __P ((__pid_t __pid, int __sig));
#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 __P ((__pid_t __pgrp, int __sig));
#endif /* Use BSD || X/Open Unix. */
/* Raise signal SIG, i.e., send SIG to yourself. */
extern int raise __P ((int __sig));
#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. */
#ifdef __USE_MISC
/* Print a message describing the meaning of the given signal number. */
extern void psignal __P ((int __sig, __const char *__s));
#endif /* Use misc. */
/* Block signals in MASK, returning the old mask. */
extern int __sigblock __P ((int __mask));
/* Set the mask of blocked signals to MASK, returning the old mask. */
extern int __sigsetmask __P ((int __mask));
/* The `sigpause' function has two different interfaces. The original
BSD definition defines the argument as a mask of the signal, while
the more modern interface in X/Open defines it as the signal
number. We go with the more modern version unless the user
explitcly selects the BSD version. */
extern int __sigpause __P ((int __sig_or_mask, int __is_sig));
#if defined(__USE_BSD) && !defined(__USE_XOPEN)
/* Set the mask of blocked signals to MASK,
wait for a signal to arrive, and then restore the mask. */
#define sigpause(mask) __sigpause ((mask), 0)
#else
#ifdef __USE_XOPEN
/* Remove a signal from the signal mask and suspend the process. */
#define sigpause(sig) __sigpause ((sig), 1)
#endif
#endif
#ifdef __USE_BSD
#define sigmask(sig) __sigmask(sig)
extern int sigblock __P ((int __mask));
extern int sigsetmask __P ((int __mask));
/* This function is here only for compatibility.
Use `sigprocmask' instead. */
extern int siggetmask __P ((void));
#endif /* Use BSD. */
#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_BSD
typedef __sighandler_t sig_t;
#endif
#endif /* <signal.h> included. */
#ifdef __USE_POSIX
#if !defined(__sigset_t_defined) && \
(defined(_SIGNAL_H) || defined(__need_sigset_t))
typedef __sigset_t sigset_t;
#define __sigset_t_defined 1
#endif /* `sigset_t' not defined and <signal.h> or need `sigset_t'. */
#undef __need_sigset_t
#ifdef _SIGNAL_H
/* Clear all signals from SET. */
extern int sigemptyset __P ((sigset_t *__set));
/* Set all signals in SET. */
extern int sigfillset __P ((sigset_t *__set));
/* Add SIGNO to SET. */
extern int sigaddset __P ((sigset_t *__set, int __signo));
/* Remove SIGNO from SET. */
extern int sigdelset __P ((sigset_t *__set, int __signo));
/* Return 1 if SIGNO is in SET, 0 if not. */
extern int sigismember __P ((__const sigset_t *__set, int __signo));
/* Get the system-specific definitions of `struct sigaction'
and the `SA_*' and `SIG_*'. constants. */
#include <sigaction.h>
/* Get and/or change the set of blocked signals. */
extern int __sigprocmask __P ((int __how,
__const sigset_t *__set, sigset_t *__oset));
extern int sigprocmask __P ((int __how,
__const sigset_t *__set, sigset_t *__oset));
/* Change the set of blocked signals to SET,
wait until a signal arrives, and restore the set of blocked signals. */
extern int __sigsuspend __P ((__const sigset_t *__set));
extern int sigsuspend __P ((__const sigset_t *__set));
/* Get and/or set the action for signal SIG. */
extern int __sigaction __P ((int __sig, __const struct sigaction *__act,
struct sigaction *__oact));
extern int sigaction __P ((int __sig, __const struct sigaction *__act,
struct sigaction *__oact));
/* Put in SET all signals that are blocked and waiting to be delivered. */
extern int sigpending __P ((sigset_t *__set));
/* Select any of pending signals from SET or wait for any to arrive. */
extern int __sigwait __P ((__const sigset_t *__set, int *__sig));
extern int sigwait __P ((__const sigset_t *__set, int *__sig));
#endif /* <signal.h> included. */
#endif /* Use POSIX. */
#if defined(_SIGNAL_H) && defined(__USE_BSD)
/* 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];
/* Structure passed to `sigvec'. */
struct sigvec
{
__sighandler_t sv_handler; /* Signal handler. */
int sv_mask; /* Mask of signals to be blocked. */
int sv_flags; /* Flags (see below). */
#define sv_onstack sv_flags /* 4.2 BSD compatibility. */
};
/* Bits in `sv_flags'. */
#define SV_ONSTACK (1 << 0)/* Take the signal on the signal stack. */
#define SV_INTERRUPT (1 << 1)/* Do not restart system calls. */
#define SV_RESETHAND (1 << 2)/* Reset handler to SIG_DFL on receipt. */
/* If VEC is non-NULL, set the handler for SIG to the `sv_handler' member
of VEC. The signals in `sv_mask' will be blocked while the handler runs.
If the SV_RESETHAND bit is set in `sv_flags', the handler for SIG will be
reset to SIG_DFL before `sv_handler' is entered. If OVEC is non-NULL,
it is filled in with the old information for SIG. */
extern int __sigvec __P ((int __sig, __const struct sigvec *__vec,
struct sigvec *__ovec));
extern int sigvec __P ((int __sig, __const struct sigvec *__vec,
struct sigvec *__ovec));
/* Get machine-dependent `struct sigcontext' and signal subcodes. */
#include <sigcontext.h>
/* Restore the state saved in SCP. */
extern int __sigreturn __P ((struct sigcontext *__scp));
extern int sigreturn __P ((struct sigcontext *__scp));
#endif /* signal.h included and use BSD. */
#if defined(_SIGNAL_H) && (defined(__USE_BSD) || defined(__USE_XOPEN_EXTENDED))
#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 __P ((int __sig, int __interrupt));
/* Structure describing a signal stack. */
struct sigstack
{
__ptr_t ss_sp; /* Signal stack pointer. */
int ss_onstack; /* Nonzero if executing on this stack. */
};
/* 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. */
extern int sigstack __P ((__const struct sigstack *__ss,
struct sigstack *__oss));
/* Alternate interface. */
struct sigaltstack
{
__ptr_t ss_sp;
size_t ss_size;
int ss_flags;
};
extern int sigaltstack __P ((__const struct sigaltstack *__ss,
struct sigaltstack *__oss));
#endif /* signal.h included and use BSD or X/Open Unix. */
__END_DECLS
#endif /* signal.h */
Reference in New Issue View Git Blame Copy Permalink