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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1#ifndef _ASM_GENERIC_FCNTL_H
2#define _ASM_GENERIC_FCNTL_H
3
4#include <linux/types.h>
5
6#define O_ACCMODE 00000003
7#define O_RDONLY 00000000
8#define O_WRONLY 00000001
9#define O_RDWR 00000002
10#ifndef O_CREAT
11#define O_CREAT 00000100 /* not fcntl */
12#endif
13#ifndef O_EXCL
14#define O_EXCL 00000200 /* not fcntl */
15#endif
16#ifndef O_NOCTTY
17#define O_NOCTTY 00000400 /* not fcntl */
18#endif
19#ifndef O_TRUNC
20#define O_TRUNC 00001000 /* not fcntl */
21#endif
22#ifndef O_APPEND
23#define O_APPEND 00002000
24#endif
25#ifndef O_NONBLOCK
26#define O_NONBLOCK 00004000
27#endif
28#ifndef O_DSYNC
29#define O_DSYNC 00010000 /* used to be O_SYNC, see below */
30#endif
31#ifndef FASYNC
32#define FASYNC 00020000 /* fcntl, for BSD compatibility */
33#endif
34#ifndef O_DIRECT
35#define O_DIRECT 00040000 /* direct disk access hint */
36#endif
37#ifndef O_LARGEFILE
38#define O_LARGEFILE 00100000
39#endif
40#ifndef O_DIRECTORY
41#define O_DIRECTORY 00200000 /* must be a directory */
42#endif
43#ifndef O_NOFOLLOW
44#define O_NOFOLLOW 00400000 /* don't follow links */
45#endif
46#ifndef O_NOATIME
47#define O_NOATIME 01000000
48#endif
49#ifndef O_CLOEXEC
50#define O_CLOEXEC 02000000 /* set close_on_exec */
51#endif
52
53/*
54 * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
55 * the O_SYNC flag. We continue to use the existing numerical value
56 * for O_DSYNC semantics now, but using the correct symbolic name for it.
57 * This new value is used to request true Posix O_SYNC semantics. It is
58 * defined in this strange way to make sure applications compiled against
59 * new headers get at least O_DSYNC semantics on older kernels.
60 *
61 * This has the nice side-effect that we can simply test for O_DSYNC
62 * wherever we do not care if O_DSYNC or O_SYNC is used.
63 *
64 * Note: __O_SYNC must never be used directly.
65 */
66#ifndef O_SYNC
67#define __O_SYNC 04000000
68#define O_SYNC (__O_SYNC|O_DSYNC)
69#endif
70
71#ifndef O_NDELAY
72#define O_NDELAY O_NONBLOCK
73#endif
74
75#define F_DUPFD 0 /* dup */
76#define F_GETFD 1 /* get close_on_exec */
77#define F_SETFD 2 /* set/clear close_on_exec */
78#define F_GETFL 3 /* get file->f_flags */
79#define F_SETFL 4 /* set file->f_flags */
80#ifndef F_GETLK
81#define F_GETLK 5
82#define F_SETLK 6
83#define F_SETLKW 7
84#endif
85#ifndef F_SETOWN
86#define F_SETOWN 8 /* for sockets. */
87#define F_GETOWN 9 /* for sockets. */
88#endif
89#ifndef F_SETSIG
90#define F_SETSIG 10 /* for sockets. */
91#define F_GETSIG 11 /* for sockets. */
92#endif
93
94#ifndef CONFIG_64BIT
95#ifndef F_GETLK64
96#define F_GETLK64 12 /* using 'struct flock64' */
97#define F_SETLK64 13
98#define F_SETLKW64 14
99#endif
100#endif
101
102#ifndef F_SETOWN_EX
103#define F_SETOWN_EX 15
104#define F_GETOWN_EX 16
105#endif
106
107#define F_OWNER_TID 0
108#define F_OWNER_PID 1
109#define F_OWNER_PGRP 2
110
111struct f_owner_ex {
112 int type;
113 pid_t pid;
114};
115
116/* for F_[GET|SET]FL */
117#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
118
119/* for posix fcntl() and lockf() */
120#ifndef F_RDLCK
121#define F_RDLCK 0
122#define F_WRLCK 1
123#define F_UNLCK 2
124#endif
125
126/* for old implementation of bsd flock () */
127#ifndef F_EXLCK
128#define F_EXLCK 4 /* or 3 */
129#define F_SHLCK 8 /* or 4 */
130#endif
131
132/* for leases */
133#ifndef F_INPROGRESS
134#define F_INPROGRESS 16
135#endif
136
137/* operations for bsd flock(), also used by the kernel implementation */
138#define LOCK_SH 1 /* shared lock */
139#define LOCK_EX 2 /* exclusive lock */
140#define LOCK_NB 4 /* or'd with one of the above to prevent
141 blocking */
142#define LOCK_UN 8 /* remove lock */
143
144#define LOCK_MAND 32 /* This is a mandatory flock ... */
145#define LOCK_READ 64 /* which allows concurrent read operations */
146#define LOCK_WRITE 128 /* which allows concurrent write operations */
147#define LOCK_RW 192 /* which allows concurrent read & write ops */
148
149#define F_LINUX_SPECIFIC_BASE 1024
150
151#ifndef HAVE_ARCH_STRUCT_FLOCK
152#ifndef __ARCH_FLOCK_PAD
153#define __ARCH_FLOCK_PAD
154#endif
155
156struct flock {
157 short l_type;
158 short l_whence;
159 __kernel_off_t l_start;
160 __kernel_off_t l_len;
161 __kernel_pid_t l_pid;
162 __ARCH_FLOCK_PAD
163};
164#endif
165
166#ifndef CONFIG_64BIT
167
168#ifndef HAVE_ARCH_STRUCT_FLOCK64
169#ifndef __ARCH_FLOCK64_PAD
170#define __ARCH_FLOCK64_PAD
171#endif
172
173struct flock64 {
174 short l_type;
175 short l_whence;
176 __kernel_loff_t l_start;
177 __kernel_loff_t l_len;
178 __kernel_pid_t l_pid;
179 __ARCH_FLOCK64_PAD
180};
181#endif
182#endif /* !CONFIG_64BIT */
183
184#endif /* _ASM_GENERIC_FCNTL_H */