Current File : //proc/self/root/proc/self/root/usr/include/sys/file.h
/* Copyright (C) 1991, 92, 96, 97, 98, 99 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/>. */
#ifndef _SYS_FILE_H
#define _SYS_FILE_H 1
#include <features.h>
#ifndef _FCNTL_H
# include <fcntl.h>
#endif
__BEGIN_DECLS
/* Alternate names for values for the WHENCE argument to `lseek'.
These are the same as SEEK_SET, SEEK_CUR, and SEEK_END, respectively. */
#ifndef L_SET
# define L_SET 0 /* Seek from beginning of file. */
# define L_INCR 1 /* Seek from current position. */
# define L_XTND 2 /* Seek from end of file. */
#endif
/* Operations for the `flock' call. */
#define LOCK_SH 1 /* Shared lock. */
#define LOCK_EX 2 /* Exclusive lock. */
#define LOCK_UN 8 /* Unlock. */
/* Can be OR'd in to one of the above. */
#define LOCK_NB 4 /* Don't block when locking. */
/* Apply or remove an advisory lock, according to OPERATION,
on the file FD refers to. */
extern int flock (int __fd, int __operation) __THROW;
__END_DECLS
#endif /* sys/file.h */
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