tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1995, 96, 97, 98, 99, 2003 Ralf Baechle
7 */
8#ifndef _ASM_FCNTL_H
9#define _ASM_FCNTL_H
10
11/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
12 located on an ext2 file system */
13#define O_ACCMODE 0x0003
14#define O_RDONLY 0x0000
15#define O_WRONLY 0x0001
16#define O_RDWR 0x0002
17#define O_APPEND 0x0008
18#define O_SYNC 0x0010
19#define O_NONBLOCK 0x0080
20#define O_CREAT 0x0100 /* not fcntl */
21#define O_TRUNC 0x0200 /* not fcntl */
22#define O_EXCL 0x0400 /* not fcntl */
23#define O_NOCTTY 0x0800 /* not fcntl */
24#define FASYNC 0x1000 /* fcntl, for BSD compatibility */
25#define O_LARGEFILE 0x2000 /* allow large file opens */
26#define O_DIRECT 0x8000 /* direct disk access hint */
27#define O_DIRECTORY 0x10000 /* must be a directory */
28#define O_NOFOLLOW 0x20000 /* don't follow links */
29#define O_NOATIME 0x40000
30
31#define O_NDELAY O_NONBLOCK
32
33#define F_DUPFD 0 /* dup */
34#define F_GETFD 1 /* get close_on_exec */
35#define F_SETFD 2 /* set/clear close_on_exec */
36#define F_GETFL 3 /* get file->f_flags */
37#define F_SETFL 4 /* set file->f_flags */
38#define F_GETLK 14
39#define F_SETLK 6
40#define F_SETLKW 7
41
42#define F_SETOWN 24 /* for sockets. */
43#define F_GETOWN 23 /* for sockets. */
44#define F_SETSIG 10 /* for sockets. */
45#define F_GETSIG 11 /* for sockets. */
46
47#ifndef __mips64
48#define F_GETLK64 33 /* using 'struct flock64' */
49#define F_SETLK64 34
50#define F_SETLKW64 35
51#endif
52
53/* for F_[GET|SET]FL */
54#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
55
56/* for posix fcntl() and lockf() */
57#define F_RDLCK 0
58#define F_WRLCK 1
59#define F_UNLCK 2
60
61/* for old implementation of bsd flock () */
62#define F_EXLCK 4 /* or 3 */
63#define F_SHLCK 8 /* or 4 */
64
65/* for leases */
66#define F_INPROGRESS 16
67
68/* operations for bsd flock(), also used by the kernel implementation */
69#define LOCK_SH 1 /* shared lock */
70#define LOCK_EX 2 /* exclusive lock */
71#define LOCK_NB 4 /* or'd with one of the above to prevent
72 blocking */
73#define LOCK_UN 8 /* remove lock */
74
75#define LOCK_MAND 32 /* This is a mandatory flock */
76#define LOCK_READ 64 /* ... Which allows concurrent read operations */
77#define LOCK_WRITE 128 /* ... Which allows concurrent write operations */
78#define LOCK_RW 192 /* ... Which allows concurrent read & write ops */
79
80/*
81 * The flavours of struct flock. "struct flock" is the ABI compliant
82 * variant. Finally struct flock64 is the LFS variant of struct flock. As
83 * a historic accident and inconsistence with the ABI definition it doesn't
84 * contain all the same fields as struct flock.
85 */
86
87#ifndef __mips64
88
89typedef struct flock {
90 short l_type;
91 short l_whence;
92 __kernel_off_t l_start;
93 __kernel_off_t l_len;
94 long l_sysid;
95 __kernel_pid_t l_pid;
96 long pad[4];
97} flock_t;
98
99typedef struct flock64 {
100 short l_type;
101 short l_whence;
102 loff_t l_start;
103 loff_t l_len;
104 pid_t l_pid;
105} flock64_t;
106
107#else /* 64-bit definitions */
108
109typedef struct flock {
110 short l_type;
111 short l_whence;
112 __kernel_off_t l_start;
113 __kernel_off_t l_len;
114 __kernel_pid_t l_pid;
115} flock_t;
116
117#ifdef __KERNEL__
118#define flock64 flock
119#endif
120
121#endif
122
123#define F_LINUX_SPECIFIC_BASE 1024
124
125#endif /* _ASM_FCNTL_H */