1 #ifndef _I386_FCNTL_H
2 #define _I386_FCNTL_H
3
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 0003
7 #define O_RDONLY 00
8 #define O_WRONLY 01
9 #define O_RDWR 02
10 #define O_CREAT 0100 /* not fcntl */
11 #define O_EXCL 0200 /* not fcntl */
12 #define O_NOCTTY 0400 /* not fcntl */
13 #define O_TRUNC 01000 /* not fcntl */
14 #define O_APPEND 02000
15 #define O_NONBLOCK 04000
16 #define O_NDELAY O_NONBLOCK
17 #define O_SYNC 010000
18 #define FASYNC 020000 /* fcntl, for BSD compatibility */
19
20 #define F_DUPFD 0 /* dup */
21 #define F_GETFD 1 /* get f_flags */
22 #define F_SETFD 2 /* set f_flags */
23 #define F_GETFL 3 /* more flags (cloexec) */
24 #define F_SETFL 4
25 #define F_GETLK 5
26 #define F_SETLK 6
27 #define F_SETLKW 7
28
29 #define F_SETOWN 8 /* for sockets. */
30 #define F_GETOWN 9 /* for sockets. */
31
32 /* for F_[GET|SET]FL */
33 #define FD_CLOEXEC 1 /* actually anything with low bit set goes */
34
35 /* for posix fcntl() and lockf() */
36 #define F_RDLCK 0
37 #define F_WRLCK 1
38 #define F_UNLCK 2
39
40 /* for old implementation of bsd flock () */
41 #define F_EXLCK 4 /* or 3 */
42 #define F_SHLCK 8 /* or 4 */
43
44 /* operations for bsd flock(), also used by the kernel implementation */
45 #define LOCK_SH 1 /* shared lock */
46 #define LOCK_EX 2 /* exclusive lock */
47 #define LOCK_NB 4 /* or'd with one of the above to prevent
48 blocking */
49 #define LOCK_UN 8 /* remove lock */
50
51 #ifdef __KERNEL__
52 #define F_POSIX 1
53 #define F_FLOCK 2
54 #endif /* __KERNEL__ */
55
56 struct flock {
57 short l_type;
58 short l_whence;
59 off_t l_start;
60 off_t l_len;
61 pid_t l_pid;
62 };
63
64 #endif