1/* O_*, F_*, FD_* bit values for Linux/x86.
2 Copyright (C) 2001-2022 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#ifdef __x86_64__
24# define __O_LARGEFILE 0
25#endif
26
27#ifdef __x86_64__
28/* Not necessary, we always have 64-bit offsets. */
29# define F_GETLK64 5 /* Get record locking info. */
30# define F_SETLK64 6 /* Set record locking info (non-blocking). */
31# define F_SETLKW64 7 /* Set record locking info (blocking). */
32#endif
33
34
35struct flock
36 {
37 short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
38 short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
39#ifndef __USE_FILE_OFFSET64
40 __off_t l_start; /* Offset where the lock begins. */
41 __off_t l_len; /* Size of the locked area; zero means until EOF. */
42#else
43 __off64_t l_start; /* Offset where the lock begins. */
44 __off64_t l_len; /* Size of the locked area; zero means until EOF. */
45#endif
46 __pid_t l_pid; /* Process holding the lock. */
47 };
48
49#ifdef __USE_LARGEFILE64
50struct flock64
51 {
52 short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
53 short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
54 __off64_t l_start; /* Offset where the lock begins. */
55 __off64_t l_len; /* Size of the locked area; zero means until EOF. */
56 __pid_t l_pid; /* Process holding the lock. */
57 };
58#endif
59
60/* Include generic Linux declarations. */
61#include <bits/fcntl-linux.h>
62