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
6 * Copyright (C) 1995, 1996, 1997, 1998 by Ralf Baechle
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
17 #define O_APPEND 0x0008
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 */
30 #define O_NDELAY O_NONBLOCK
32 #define F_DUPFD 0 /* dup */
33 #define F_GETFD 1 /* get close_on_exec */
34 #define F_SETFD 2 /* set/clear close_on_exec */
35 #define F_GETFL 3 /* get file->f_flags */
36 #define F_SETFL 4 /* set file->f_flags */
41 #define F_SETOWN 24 /* for sockets. */
42 #define F_GETOWN 23 /* for sockets. */
43 #define F_SETSIG 10 /* for sockets. */
44 #define F_GETSIG 11 /* for sockets. */
46 #define F_GETLK64 33 /* using 'struct flock64' */
50 /* for F_[GET|SET]FL */
51 #define FD_CLOEXEC 1 /* actually anything with low bit set goes */
53 /* for posix fcntl() and lockf() */
58 /* for old implementation of bsd flock () */
59 #define F_EXLCK 4 /* or 3 */
60 #define F_SHLCK 8 /* or 4 */
63 #define F_INPROGRESS 16
65 /* operations for bsd flock(), also used by the kernel implementation */
66 #define LOCK_SH 1 /* shared lock */
67 #define LOCK_EX 2 /* exclusive lock */
68 #define LOCK_NB 4 /* or'd with one of the above to prevent
70 #define LOCK_UN 8 /* remove lock */
72 #define LOCK_MAND 32 /* This is a mandatory flock */
73 #define LOCK_READ 64 /* ... Which allows concurrent read operations */
74 #define LOCK_WRITE 128 /* ... Which allows concurrent write operations */
75 #define LOCK_RW 192 /* ... Which allows concurrent read & write ops */
78 * The flavours of struct flock. "struct flock" is the ABI compliant
79 * variant. Finally struct flock64 is the LFS variant of struct flock. As
80 * a historic accident and inconsistence with the ABI definition it doesn't
81 * contain all the same fields as struct flock.
84 typedef struct flock {
87 __kernel_off_t l_start;
94 typedef struct flock64 {
102 #define F_LINUX_SPECIFIC_BASE 1024
104 #endif /* __ASM_FCNTL_H */