mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-17 18:40:14 +00:00
01ed6c5189
2000-04-30 Ulrich Drepper <drepper@redhat.com> * sysdeps/generic/bits/fcntl.h (F_SETOWN, F_GETOWN): Make available if __USE_XOPEN2K. * sysdeps/mach/hurd/bits/fcntl.h: Likewise. * sysdeps/unix/common/bits/fcntl.h: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/fcntl.h: Likewise. * sysdeps/unix/sysv/linux/i386/bits/fcntl.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/fcntl.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/fcntl.h: Likewise. * sysdeps/unix/sysv/aix/bits/fcntl.h: Likewise. * sysdeps/unix/sysv/linux/bits/fcntl.h: Likewise.
96 lines
3.8 KiB
C
96 lines
3.8 KiB
C
/* O_*, F_*, FD_* bit values for stub configuration.
|
|
Copyright (C) 1991, 1992, 1997, 2000 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. */
|
|
|
|
/* These values should be changed as appropriate for your system. */
|
|
|
|
#ifndef _FCNTL_H
|
|
# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
|
|
#endif
|
|
|
|
|
|
/* File access modes for `open' and `fcntl'. */
|
|
#define O_RDONLY 0 /* Open read-only. */
|
|
#define O_WRONLY 1 /* Open write-only. */
|
|
#define O_RDWR 2 /* Open read/write. */
|
|
|
|
|
|
/* Bits OR'd into the second argument to open. */
|
|
#define O_CREAT 0x0200 /* Create file if it doesn't exist. */
|
|
#define O_EXCL 0x0800 /* Fail if file already exists. */
|
|
#define O_TRUNC 0x0400 /* Truncate file to zero length. */
|
|
#define O_NOCTTY 0x0100 /* Don't assign a controlling terminal. */
|
|
|
|
/* File status flags for `open' and `fcntl'. */
|
|
#define O_APPEND 0x0008 /* Writes append to the file. */
|
|
#define O_NONBLOCK 0x0004 /* Non-blocking I/O. */
|
|
|
|
#ifdef __USE_BSD
|
|
# define O_NDELAY O_NONBLOCK
|
|
#endif
|
|
|
|
/* Mask for file access modes. This is system-dependent in case
|
|
some system ever wants to define some other flavor of access. */
|
|
#define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
|
|
|
|
/* Values for the second argument to `fcntl'. */
|
|
#define F_DUPFD 0 /* Duplicate file descriptor. */
|
|
#define F_GETFD 1 /* Get file descriptor flags. */
|
|
#define F_SETFD 2 /* Set file descriptor flags. */
|
|
#define F_GETFL 3 /* Get file status flags. */
|
|
#define F_SETFL 4 /* Set file status flags. */
|
|
#if defined __USE_BSD || defined __USE_XOPEN2K
|
|
# define F_GETOWN 5 /* Get owner (receiver of SIGIO). */
|
|
# define F_SETOWN 6 /* Set owner (receiver of SIGIO). */
|
|
#endif
|
|
#define F_GETLK 7 /* Get record locking info. */
|
|
#define F_SETLK 8 /* Set record locking info. */
|
|
#define F_SETLKW 9 /* Set record locking info, wait. */
|
|
|
|
/* File descriptor flags used with F_GETFD and F_SETFD. */
|
|
#define FD_CLOEXEC 1 /* Close on exec. */
|
|
|
|
|
|
#include <bits/types.h>
|
|
|
|
/* The structure describing an advisory lock. This is the type of the third
|
|
argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests. */
|
|
struct flock
|
|
{
|
|
short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
|
|
short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
|
|
__off_t l_start; /* Offset where the lock begins. */
|
|
__off_t l_len; /* Size of the locked area; zero means until EOF. */
|
|
__pid_t l_pid; /* Process holding the lock. */
|
|
};
|
|
|
|
/* Values for the `l_type' field of a `struct flock'. */
|
|
#define F_RDLCK 1 /* Read lock. */
|
|
#define F_WRLCK 2 /* Write lock. */
|
|
#define F_UNLCK 3 /* Remove lock. */
|
|
|
|
/* Advise to `posix_fadvise'. */
|
|
#ifdef __USE_XOPEN2K
|
|
# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
|
|
# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
|
|
# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
|
|
# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
|
|
# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
|
|
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
|
|
#endif
|