glibc (2.38)
1 /* O_*, F_*, FD_* bit values for Linux/x86.
2 Copyright (C) 2001-2023 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
35 struct 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
50 struct 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>
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