Line data Source code
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 :
111 : struct 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 :
156 : struct 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 1 : };
164 1 : #endif
165 1 :
166 : #ifndef CONFIG_64BIT
167 :
168 : #ifndef HAVE_ARCH_STRUCT_FLOCK64
169 : #ifndef __ARCH_FLOCK64_PAD
170 : #define __ARCH_FLOCK64_PAD
171 : #endif
172 :
173 : struct 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 2 :
184 : #endif /* _ASM_GENERIC_FCNTL_H */
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