glibc/io/fcntl.h
Ulrich Drepper 2c008571c3 Update.
2003-04-19  Ulrich Drepper  <drepper@redhat.com>

	* catgets/nl_types.h: Remove __THROW marker from cancellation points.
	* dirent/dirent.h: Likewise.
	* dlfcn/dlfcn.h: Likewise.
	* grp/grp.h: Likewise.
	* iconv/iconv.h: Likewise.
	* io/fcntl.h: Likewise.
	* io/ftw.h: Likewise.
	* libio/stdio.h: Likewise.
	* misc/sys/mman.h: Likewise.
	* misc/sys/select.h: Likewise.
	* misc/sys/syslog.h: Likewise.
	* misc/sys/uio.h: Likewise.
	* posix/spawn.h: Likewise.
	* posix/unistd.h: Likewise.
	* posix/sys/wait.h: Likewise.
	* pwd/pwd.h: Likewise.
	* resolv/netdb.h: Likewise.
	* rt/aio.h: Likewise.
	* shadow/shadow.h: Likewise.
	* signal/signal.h: Likewise.
	* socket/sys/socket.h: Likewise.
	* stdlib/stdlib.h: Likewise.
	* streams/stropts.h: Likewise.
	* string/string.h: Likewise.
	* sysdeps/gnu/utmpx.h: Likewise.
	* sysvipc/sys/msg.h: Likewise.
	* termios/termios.h: Likewise.
	* time/time.h: Likewise.
	* wcsmbs/wchar.h: Likewise.
	* iconv/gconv_cache.c: Include <not-cancel.h> and use non-cancelable
	functions.
	* misc/daemon.c: Likewise.
	* sysdeps/generic/backtracesymsfd.c: Likewise.
	* sysdeps/generic/check_fds.c: Likewise.
	* sysdeps/unix/sysv/linux/gethostid.c: Likewise.
	* sysdeps/unix/sysv/linux/not-cancel.h: New file.
	* sysdeps/generic/not-cancel.h: New file.
	* csu/Makefile (distribute): Add not-cancel.h.
	* sysdeps/unix/sysv/linux/fatal-prepare.h: New file.
	* sysdeps/unix/sysv/linux/Makefile: Define FATAL_PREPARE_INCLUDE
	for assert.c and assert-perr.c to include <fatal-prepare.h>.
	* sysdeps/unix/sysv/linux/Dist: Add fatal-prepare.h.

	* sysdeps/posix/remove.c (remove): Rewrite.  No need to restore
	errno and unlink first.

	* io/ftw.c (ftw_dir): In all places assume fchdir is available.

2003-04-18  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/libc_fatal.c (__libc_fatal): Use
	INTERNAL_SYSCALL instead of INLINE_SYSCALL.
2003-04-19 16:57:17 +00:00

175 lines
5.7 KiB
C

/* Copyright (C) 1991,1992,1994-2001,2003 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/*
* POSIX Standard: 6.5 File Control Operations <fcntl.h>
*/
#ifndef _FCNTL_H
#define _FCNTL_H 1
#include <features.h>
/* This must be early so <bits/fcntl.h> can define types winningly. */
__BEGIN_DECLS
/* Get the definitions of O_*, F_*, FD_*: all the
numbers and flag bits for `open', `fcntl', et al. */
#include <bits/fcntl.h>
/* For XPG all symbols from <sys/stat.h> should also be available. */
#ifdef __USE_XOPEN
# include <sys/stat.h>
#endif
#ifdef __USE_MISC
# ifndef R_OK /* Verbatim from <unistd.h>. Ugh. */
/* Values for the second argument to access.
These may be OR'd together. */
# define R_OK 4 /* Test for read permission. */
# define W_OK 2 /* Test for write permission. */
# define X_OK 1 /* Test for execute permission. */
# define F_OK 0 /* Test for existence. */
# endif
#endif /* Use misc. */
/* XPG wants the following symbols. */
#ifdef __USE_XOPEN /* <stdio.h> has the same definitions. */
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Seek from end of file. */
#endif /* XPG */
/* Do the file control operation described by CMD on FD.
The remaining arguments are interpreted depending on CMD.
This function is a cancellation point and therefore not marked with
__THROW. */
extern int fcntl (int __fd, int __cmd, ...);
/* Open FILE and return a new file descriptor for it, or -1 on error.
OFLAG determines the type of access used. If O_CREAT is on OFLAG,
the third argument is taken as a `mode_t', the mode of the created file.
This function is a cancellation point and therefore not marked with
__THROW. */
#ifndef __USE_FILE_OFFSET64
extern int open (__const char *__file, int __oflag, ...);
#else
# ifdef __REDIRECT
extern int __REDIRECT (open, (__const char *__file, int __oflag, ...), open64);
# else
# define open open64
# endif
#endif
#ifdef __USE_LARGEFILE64
extern int open64 (__const char *__file, int __oflag, ...);
#endif
/* Create and open FILE, with mode MODE. This takes an `int' MODE
argument because that is what `mode_t' will be widened to.
This function is a cancellation point and therefore not marked with
__THROW. */
#ifndef __USE_FILE_OFFSET64
extern int creat (__const char *__file, __mode_t __mode);
#else
# ifdef __REDIRECT
extern int __REDIRECT (creat, (__const char *__file, __mode_t __mode),
creat64);
# else
# define creat creat64
# endif
#endif
#ifdef __USE_LARGEFILE64
extern int creat64 (__const char *__file, __mode_t __mode);
#endif
#if !defined F_LOCK && (defined __USE_MISC || (defined __USE_XOPEN_EXTENDED \
&& !defined __USE_POSIX))
/* NOTE: These declarations also appear in <unistd.h>; be sure to keep both
files consistent. Some systems have them there and some here, and some
software depends on the macros being defined without including both. */
/* `lockf' is a simpler interface to the locking facilities of `fcntl'.
LEN is always relative to the current file position.
The CMD argument is one of the following. */
# define F_ULOCK 0 /* Unlock a previously locked region. */
# define F_LOCK 1 /* Lock a region for exclusive use. */
# define F_TLOCK 2 /* Test and lock a region for exclusive use. */
# define F_TEST 3 /* Test a region for other processes locks. */
# ifndef __USE_FILE_OFFSET64
extern int lockf (int __fd, int __cmd, __off_t __len) __THROW;
# else
# ifdef __REDIRECT
extern int __REDIRECT (lockf, (int __fd, int __cmd, __off64_t __len) __THROW,
lockf64);
# else
# define lockf lockf64
# endif
# endif
# ifdef __USE_LARGEFILE64
extern int lockf64 (int __fd, int __cmd, __off64_t __len) __THROW;
# endif
#endif
#ifdef __USE_XOPEN2K
/* Advice the system about the expected behaviour of the application with
respect to the file associated with FD. */
# ifndef __USE_FILE_OFFSET64
extern int posix_fadvise (int __fd, __off_t __offset, size_t __len,
int __advise) __THROW;
# else
# ifdef __REDIRECT
extern int __REDIRECT (posix_fadvise, (int __fd, __off64_t __offset,
size_t __len, int __advise) __THROW,
posix_fadvise64);
# else
# define posix_fadvise posix_fadvise64
# endif
# endif
# ifdef __USE_LARGEFILE64
extern int posix_fadvise64 (int __fd, __off64_t __offset, size_t __len,
int __advise) __THROW;
# endif
/* Reserve storage for the data of the file associated with FD. */
# ifndef __USE_FILE_OFFSET64
extern int posix_fallocate (int __fd, __off_t __offset, size_t __len) __THROW;
# else
# ifdef __REDIRECT
extern int __REDIRECT (posix_fallocate, (int __fd, __off64_t __offset,
size_t __len) __THROW,
posix_fallocate64);
# else
# define posix_fallocate posix_fallocate64
# endif
# endif
# ifdef __USE_LARGEFILE64
extern int posix_fallocate64 (int __fd, __off64_t __offset, size_t __len)
__THROW;
# endif
#endif
__END_DECLS
#endif /* fcntl.h */