1 #ifndef _ASM_GENERIC_FCNTL_H
2 #define _ASM_GENERIC_FCNTL_H
4 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
5 located on an ext2 file system */
6 #define O_ACCMODE 00000003
7 #define O_RDONLY 00000000
8 #define O_WRONLY 00000001
9 #define O_RDWR 00000002
11 #define O_CREAT 00000100 /* not fcntl */
14 #define O_EXCL 00000200 /* not fcntl */
17 #define O_NOCTTY 00000400 /* not fcntl */
20 #define O_TRUNC 00001000 /* not fcntl */
23 #define O_APPEND 00002000
26 #define O_NONBLOCK 00004000
29 #define O_SYNC 00010000
32 #define FASYNC 00020000 /* fcntl, for BSD compatibility */
35 #define O_DIRECT 00040000 /* direct disk access hint */
38 #define O_LARGEFILE 00100000
41 #define O_DIRECTORY 00200000 /* must be a directory */
44 #define O_NOFOLLOW 00400000 /* don't follow links */
47 #define O_NOATIME 01000000
50 #define O_NDELAY O_NONBLOCK
53 #define F_DUPFD 0 /* dup */
54 #define F_GETFD 1 /* get close_on_exec */
55 #define F_SETFD 2 /* set/clear close_on_exec */
56 #define F_GETFL 3 /* get file->f_flags */
57 #define F_SETFL 4 /* set file->f_flags */
64 #define F_SETOWN 8 /* for sockets. */
65 #define F_GETOWN 9 /* for sockets. */
68 #define F_SETSIG 10 /* for sockets. */
69 #define F_GETSIG 11 /* for sockets. */
72 /* for F_[GET|SET]FL */
73 #define FD_CLOEXEC 1 /* actually anything with low bit set goes */
75 /* for posix fcntl() and lockf() */
82 /* for old implementation of bsd flock () */
84 #define F_EXLCK 4 /* or 3 */
85 #define F_SHLCK 8 /* or 4 */
90 #define F_INPROGRESS 16
93 /* operations for bsd flock(), also used by the kernel implementation */
94 #define LOCK_SH 1 /* shared lock */
95 #define LOCK_EX 2 /* exclusive lock */
96 #define LOCK_NB 4 /* or'd with one of the above to prevent
98 #define LOCK_UN 8 /* remove lock */
100 #define LOCK_MAND 32 /* This is a mandatory flock ... */
101 #define LOCK_READ 64 /* which allows concurrent read operations */
102 #define LOCK_WRITE 128 /* which allows concurrent write operations */
103 #define LOCK_RW 192 /* which allows concurrent read & write ops */
105 #define F_LINUX_SPECIFIC_BASE 1024
107 #endif /* _ASM_GENERIC_FCNTL_H */