1/* O_*, F_*, FD_* bit values for Linux.
 2   Copyright (C) 2000-2025 Free Software Foundation, Inc.
 3   This file is part of the GNU C Library.
 4
 5   The GNU C Library is free software; you can redistribute it and/or
 6   modify it under the terms of the GNU Lesser General Public
 7   License as published by the Free Software Foundation; either
 8   version 2.1 of the License, or (at your option) any later version.
 9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library; if not, see
17   <https://www.gnu.org/licenses/>.  */
18
19#ifndef	_FCNTL_H
20# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
21#endif
22
23#include <bits/wordsize.h>
24
25#if __WORDSIZE == 64
26/* Not necessary, files are always with 64bit off_t.  */
27# define __O_LARGEFILE	0
28#endif
29
30#if __WORDSIZE == 64
31/* Not necessary, we always have 64-bit offsets.  */
32# define F_GETLK64	5	/* Get record locking info.  */
33# define F_SETLK64	6	/* Set record locking info (non-blocking).  */
34# define F_SETLKW64	7	/* Set record locking info (blocking).	*/
35#endif
36
37struct flock
38  {
39    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
40    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
41#if __WORDSIZE == 64 || !defined __USE_FILE_OFFSET64
42    __off_t l_start;	/* Offset where the lock begins.  */
43    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
44#else
45    __off64_t l_start;	/* Offset where the lock begins.  */
46    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
47#endif
48    __pid_t l_pid;	/* Process holding the lock.  */
49  };
50
51#ifdef __USE_LARGEFILE64
52struct flock64
53  {
54    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
55    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
56    __off64_t l_start;	/* Offset where the lock begins.  */
57    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
58    __pid_t l_pid;	/* Process holding the lock.  */
59  };
60#endif
61
62#if __WORDSIZE == 64
63# define __POSIX_FADV_DONTNEED	6 /* Don't need these pages.  */
64# define __POSIX_FADV_NOREUSE	7 /* Data will be accessed once.  */
65#else
66# define __POSIX_FADV_DONTNEED	4 /* Don't need these pages.  */
67# define __POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
68#endif
69
70/* Include generic Linux declarations.  */
71#include <bits/fcntl-linux.h>