tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _ASM_GENERIC_FCNTL_H
2#define _ASM_GENERIC_FCNTL_H
3
4#include <linux/types.h>
5
6/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
7 located on an ext2 file system */
8#define O_ACCMODE 00000003
9#define O_RDONLY 00000000
10#define O_WRONLY 00000001
11#define O_RDWR 00000002
12#ifndef O_CREAT
13#define O_CREAT 00000100 /* not fcntl */
14#endif
15#ifndef O_EXCL
16#define O_EXCL 00000200 /* not fcntl */
17#endif
18#ifndef O_NOCTTY
19#define O_NOCTTY 00000400 /* not fcntl */
20#endif
21#ifndef O_TRUNC
22#define O_TRUNC 00001000 /* not fcntl */
23#endif
24#ifndef O_APPEND
25#define O_APPEND 00002000
26#endif
27#ifndef O_NONBLOCK
28#define O_NONBLOCK 00004000
29#endif
30#ifndef O_SYNC
31#define O_SYNC 00010000
32#endif
33#ifndef FASYNC
34#define FASYNC 00020000 /* fcntl, for BSD compatibility */
35#endif
36#ifndef O_DIRECT
37#define O_DIRECT 00040000 /* direct disk access hint */
38#endif
39#ifndef O_LARGEFILE
40#define O_LARGEFILE 00100000
41#endif
42#ifndef O_DIRECTORY
43#define O_DIRECTORY 00200000 /* must be a directory */
44#endif
45#ifndef O_NOFOLLOW
46#define O_NOFOLLOW 00400000 /* don't follow links */
47#endif
48#ifndef O_NOATIME
49#define O_NOATIME 01000000
50#endif
51#ifndef O_CLOEXEC
52#define O_CLOEXEC 02000000 /* set close_on_exec */
53#endif
54#ifndef O_NDELAY
55#define O_NDELAY O_NONBLOCK
56#endif
57
58#define F_DUPFD 0 /* dup */
59#define F_GETFD 1 /* get close_on_exec */
60#define F_SETFD 2 /* set/clear close_on_exec */
61#define F_GETFL 3 /* get file->f_flags */
62#define F_SETFL 4 /* set file->f_flags */
63#ifndef F_GETLK
64#define F_GETLK 5
65#define F_SETLK 6
66#define F_SETLKW 7
67#endif
68#ifndef F_SETOWN
69#define F_SETOWN 8 /* for sockets. */
70#define F_GETOWN 9 /* for sockets. */
71#endif
72#ifndef F_SETSIG
73#define F_SETSIG 10 /* for sockets. */
74#define F_GETSIG 11 /* for sockets. */
75#endif
76#ifndef F_SETOWN_EX
77#define F_SETOWN_EX 12
78#define F_GETOWN_EX 13
79#endif
80
81#define F_OWNER_TID 0
82#define F_OWNER_PID 1
83#define F_OWNER_GID 2
84
85struct f_owner_ex {
86 int type;
87 pid_t pid;
88};
89
90/* for F_[GET|SET]FL */
91#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
92
93/* for posix fcntl() and lockf() */
94#ifndef F_RDLCK
95#define F_RDLCK 0
96#define F_WRLCK 1
97#define F_UNLCK 2
98#endif
99
100/* for old implementation of bsd flock () */
101#ifndef F_EXLCK
102#define F_EXLCK 4 /* or 3 */
103#define F_SHLCK 8 /* or 4 */
104#endif
105
106/* for leases */
107#ifndef F_INPROGRESS
108#define F_INPROGRESS 16
109#endif
110
111/* operations for bsd flock(), also used by the kernel implementation */
112#define LOCK_SH 1 /* shared lock */
113#define LOCK_EX 2 /* exclusive lock */
114#define LOCK_NB 4 /* or'd with one of the above to prevent
115 blocking */
116#define LOCK_UN 8 /* remove lock */
117
118#define LOCK_MAND 32 /* This is a mandatory flock ... */
119#define LOCK_READ 64 /* which allows concurrent read operations */
120#define LOCK_WRITE 128 /* which allows concurrent write operations */
121#define LOCK_RW 192 /* which allows concurrent read & write ops */
122
123#define F_LINUX_SPECIFIC_BASE 1024
124
125#ifndef HAVE_ARCH_STRUCT_FLOCK
126#ifndef __ARCH_FLOCK_PAD
127#define __ARCH_FLOCK_PAD
128#endif
129
130struct flock {
131 short l_type;
132 short l_whence;
133 __kernel_off_t l_start;
134 __kernel_off_t l_len;
135 __kernel_pid_t l_pid;
136 __ARCH_FLOCK_PAD
137};
138#endif
139
140#ifndef CONFIG_64BIT
141
142#ifndef F_GETLK64
143#define F_GETLK64 12 /* using 'struct flock64' */
144#define F_SETLK64 13
145#define F_SETLKW64 14
146#endif
147
148#ifndef HAVE_ARCH_STRUCT_FLOCK64
149#ifndef __ARCH_FLOCK64_PAD
150#define __ARCH_FLOCK64_PAD
151#endif
152
153struct flock64 {
154 short l_type;
155 short l_whence;
156 __kernel_loff_t l_start;
157 __kernel_loff_t l_len;
158 __kernel_pid_t l_pid;
159 __ARCH_FLOCK64_PAD
160};
161#endif
162#endif /* !CONFIG_64BIT */
163
164#endif /* _ASM_GENERIC_FCNTL_H */