1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/* O_*, F_*, FD_* bit values for Linux/HPPA.
Copyright (C) 1995,1996,1997,1998,1999,2000,2002,2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _FCNTL_H
# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
#endif
#include <sys/types.h>
#ifdef __USE_GNU
# include <bits/uio.h>
#endif
/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
located on an ext2 file system */
#define O_RDONLY 00000000
#define O_WRONLY 00000001
#define O_RDWR 00000002
#define O_ACCMODE 00000003
#define O_APPEND 00000010
#define O_BLKSEEK 00000100 /* HPUX only */
#define O_CREAT 00000400 /* not fcntl */
#define O_TRUNC 00001000 /* not fcntl */
#define O_EXCL 00002000 /* not fcntl */
#define O_ASYNC 00020000
#define O_SYNC 00100000
#define O_NONBLOCK 00200004 /* HPUX has separate NDELAY & NONBLOCK */
#define O_NDELAY O_NONBLOCK
#define O_NOCTTY 00400000 /* not fcntl */
#ifdef __USE_XOPEN2K8
# define O_DIRECTORY 00010000 /* Must be a directory. */
# define O_NOFOLLOW 00000200 /* Do not follow links. */
# define O_CLOEXEC 010000000 /* set close_on_exec */
#endif
#ifdef __USE_GNU
# define O_DIRECT 00040000 /* Direct disk access. */
# define O_NOATIME 04000000 /* Do not set atime. */
# define O_PATH 020000000 /* Resolve pathname but do not open file. */
# define O_TMPFILE 040010000 /* Atomically create nameless file. */
#endif
#ifdef __USE_LARGEFILE64
# define O_LARGEFILE 00004000
#endif
#if defined __USE_POSIX199309 || defined __USE_UNIX98
# define O_DSYNC 01000000 /* HPUX only */
# define O_RSYNC 02000000 /* HPUX only */
#endif
/* Values for the second argument to `fcntl'. */
#define F_DUPFD 0 /* Duplicate file descriptor. */
#define F_GETFD 1 /* Get file descriptor flags. */
#define F_SETFD 2 /* Set file descriptor flags. */
#define F_GETFL 3 /* Get file status flags. */
#define F_SETFL 4 /* Set file status flags. */
#ifndef __USE_FILE_OFFSET64
# define F_GETLK 5 /* Get record locking info. */
# define F_SETLK 6 /* Set record locking info (non-blocking). */
# define F_SETLKW 7 /* Set record locking info (blocking). */
#else
# define F_GETLK F_GETLK64 /* Get record locking info. */
# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking). */
# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
#endif
#define F_GETLK64 8 /* Get record locking info. */
#define F_SETLK64 9 /* Set record locking info (non-blocking). */
#define F_SETLKW64 10 /* Set record locking info (blocking). */
#if defined __USE_BSD || defined __USE_UNIX98
# define F_GETOWN 11 /* Get owner of socket (receiver of SIGIO). */
# define F_SETOWN 12 /* Set owner of socket (receiver of SIGIO). */
#endif
#ifdef __USE_GNU
# define F_SETSIG 13 /* Set number of signal to be sent. */
# define F_GETSIG 14 /* Get number of signal to be sent. */
#endif
#ifdef __USE_GNU
# define F_SETLEASE 1024 /* Set a lease. */
# define F_GETLEASE 1025 /* Enquire what lease is active. */
# define F_NOTIFY 1026 /* Request notfications on a directory. */
# define F_SETPIPE_SZ 1031 /* Set pipe page size array. */
# define F_GETPIPE_SZ 1032 /* Get pipe page size array. */
#endif
#if defined __USE_XOPEN2K8 || defined __USE_GNU
# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with
close-on-exit set on new fd. */
#endif
/* for F_[GET|SET]FL */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
#define F_RDLCK 1 /* Read lock. */
#define F_WRLCK 2 /* Write lock. */
#define F_UNLCK 3 /* Remove lock. */
/* for old implementation of bsd flock () */
#define F_EXLCK 4 /* or 3 */
#define F_SHLCK 8 /* or 4 */
#ifdef __USE_BSD
/* operations for bsd flock(), also used by the kernel implementation */
# define LOCK_SH 1 /* shared lock */
# define LOCK_EX 2 /* exclusive lock */
# define LOCK_NB 4 /* or'd with one of the above to prevent
blocking */
# define LOCK_UN 8 /* remove lock */
#endif
#ifdef __USE_GNU
/* Types of directory notifications that may be requested with F_NOTIFY. */
# define DN_ACCESS 0x00000001 /* File accessed. */
# define DN_MODIFY 0x00000002 /* File modified. */
# define DN_CREATE 0x00000004 /* File created. */
# define DN_DELETE 0x00000008 /* File removed. */
# define DN_RENAME 0x00000010 /* File renamed. */
# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
#endif
struct flock
{
short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
#ifndef __USE_FILE_OFFSET64
__off_t l_start; /* Offset where the lock begins. */
__off_t l_len; /* Size of the locked area; zero means until EOF. */
#else
__off64_t l_start; /* Offset where the lock begins. */
__off64_t l_len; /* Size of the locked area; zero means until EOF. */
#endif
__pid_t l_pid; /* Process holding the lock. */
};
#ifdef __USE_LARGEFILE64
struct flock64
{
short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
__off64_t l_start; /* Offset where the lock begins. */
__off64_t l_len; /* Size of the locked area; zero means until EOF. */
__pid_t l_pid; /* Process holding the lock. */
};
#endif
/* Define some more compatibility macros to be backward compatible with
BSD systems which did not managed to hide these kernel macros. */
#ifdef __USE_BSD
# define FAPPEND O_APPEND
# define FFSYNC O_FSYNC
# define FASYNC O_ASYNC
# define FNONBLOCK O_NONBLOCK
# define FNDELAY O_NDELAY
#endif /* Use BSD. */
/* Advise to `posix_fadvise'. */
#ifdef __USE_XOPEN2K
# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
/* Flags for SYNC_FILE_RANGE. */
# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
in the range before performing the
write. */
# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
/* Flags for SPLICE and VMSPLICE. */
# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */
# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing
(but we may still block on the fd
we splice from/to). */
# define SPLICE_F_MORE 4 /* Expect more data. */
# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */
#endif
__BEGIN_DECLS
#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
/* Splice address range into a pipe. */
extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
size_t __count, unsigned int __flags);
/* Splice two files together. */
extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
__off64_t *__offout, size_t __len,
unsigned int __flags);
/* In-kernel implementation of tee for pipe buffers. */
extern ssize_t tee (int __fdin, int __fdout, size_t __len,
unsigned int __flags);
#endif
__END_DECLS
|
