]>
Commit | Line | Data |
---|---|---|
d4697bc9 | 1 | /* Copyright (C) 1991-2014 Free Software Foundation, Inc. |
2c6fe0bd | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
2c6fe0bd | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
28f540f4 | 8 | |
2c6fe0bd UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 RM |
17 | |
18 | #ifndef _SYS_UIO_H | |
28f540f4 | 19 | #define _SYS_UIO_H 1 |
5107cf1d | 20 | |
28f540f4 RM |
21 | #include <features.h> |
22 | ||
2c6fe0bd | 23 | #include <sys/types.h> |
28f540f4 | 24 | |
84384f5b UD |
25 | __BEGIN_DECLS |
26 | ||
857fa1b8 | 27 | /* This file defines `struct iovec'. */ |
5107cf1d | 28 | #include <bits/uio.h> |
28f540f4 RM |
29 | |
30 | ||
31 | /* Read data from file descriptor FD, and put the result in the | |
e109c612 | 32 | buffers described by IOVEC, which is a vector of COUNT 'struct iovec's. |
28f540f4 | 33 | The buffers are filled in the order specified. |
e109c612 | 34 | Operates just like 'read' (see <unistd.h>) except that data are |
ce22661a | 35 | put in IOVEC instead of a contiguous buffer. |
2c008571 UD |
36 | |
37 | This function is a cancellation point and therefore not marked with | |
38 | __THROW. */ | |
a784e502 | 39 | extern ssize_t readv (int __fd, const struct iovec *__iovec, int __count) |
e109c612 | 40 | __wur; |
28f540f4 | 41 | |
ce22661a | 42 | /* Write data pointed by the buffers described by IOVEC, which |
e109c612 | 43 | is a vector of COUNT 'struct iovec's, to file descriptor FD. |
28f540f4 | 44 | The data is written in the order specified. |
e109c612 | 45 | Operates just like 'write' (see <unistd.h>) except that the data |
ce22661a | 46 | are taken from IOVEC instead of a contiguous buffer. |
2c008571 UD |
47 | |
48 | This function is a cancellation point and therefore not marked with | |
49 | __THROW. */ | |
a784e502 | 50 | extern ssize_t writev (int __fd, const struct iovec *__iovec, int __count) |
e109c612 UD |
51 | __wur; |
52 | ||
53 | ||
54 | #ifdef __USE_BSD | |
55 | # ifndef __USE_FILE_OFFSET64 | |
56 | /* Read data from file descriptor FD at the given position OFFSET | |
57 | without change the file pointer, and put the result in the buffers | |
58 | described by IOVEC, which is a vector of COUNT 'struct iovec's. | |
59 | The buffers are filled in the order specified. Operates just like | |
7f8a28ef | 60 | 'pread' (see <unistd.h>) except that data are put in IOVEC instead |
e109c612 UD |
61 | of a contiguous buffer. |
62 | ||
63 | This function is a cancellation point and therefore not marked with | |
64 | __THROW. */ | |
a784e502 | 65 | extern ssize_t preadv (int __fd, const struct iovec *__iovec, int __count, |
e109c612 UD |
66 | __off_t __offset) __wur; |
67 | ||
68 | /* Write data pointed by the buffers described by IOVEC, which is a | |
69 | vector of COUNT 'struct iovec's, to file descriptor FD at the given | |
70 | position OFFSET without change the file pointer. The data is | |
7f8a28ef | 71 | written in the order specified. Operates just like 'pwrite' (see |
e109c612 UD |
72 | <unistd.h>) except that the data are taken from IOVEC instead of a |
73 | contiguous buffer. | |
74 | ||
75 | This function is a cancellation point and therefore not marked with | |
76 | __THROW. */ | |
a784e502 | 77 | extern ssize_t pwritev (int __fd, const struct iovec *__iovec, int __count, |
e109c612 UD |
78 | __off_t __offset) __wur; |
79 | # else | |
80 | # ifdef __REDIRECT | |
a784e502 | 81 | extern ssize_t __REDIRECT (preadv, (int __fd, const struct iovec *__iovec, |
34df851b | 82 | int __count, __off64_t __offset), |
e109c612 | 83 | preadv64) __wur; |
a784e502 | 84 | extern ssize_t __REDIRECT (pwritev, (int __fd, const struct iovec *__iovec, |
34df851b | 85 | int __count, __off64_t __offset), |
e109c612 UD |
86 | pwritev64) __wur; |
87 | # else | |
88 | # define preadv preadv64 | |
89 | # define pwritev pwritev64 | |
90 | # endif | |
91 | # endif | |
92 | ||
93 | # ifdef __USE_LARGEFILE64 | |
94 | /* Read data from file descriptor FD at the given position OFFSET | |
95 | without change the file pointer, and put the result in the buffers | |
96 | described by IOVEC, which is a vector of COUNT 'struct iovec's. | |
97 | The buffers are filled in the order specified. Operates just like | |
7f8a28ef | 98 | 'pread' (see <unistd.h>) except that data are put in IOVEC instead |
e109c612 UD |
99 | of a contiguous buffer. |
100 | ||
101 | This function is a cancellation point and therefore not marked with | |
102 | __THROW. */ | |
a784e502 | 103 | extern ssize_t preadv64 (int __fd, const struct iovec *__iovec, int __count, |
e109c612 UD |
104 | __off64_t __offset) __wur; |
105 | ||
106 | /* Write data pointed by the buffers described by IOVEC, which is a | |
107 | vector of COUNT 'struct iovec's, to file descriptor FD at the given | |
108 | position OFFSET without change the file pointer. The data is | |
7f8a28ef | 109 | written in the order specified. Operates just like 'pwrite' (see |
e109c612 UD |
110 | <unistd.h>) except that the data are taken from IOVEC instead of a |
111 | contiguous buffer. | |
112 | ||
113 | This function is a cancellation point and therefore not marked with | |
114 | __THROW. */ | |
a784e502 | 115 | extern ssize_t pwritev64 (int __fd, const struct iovec *__iovec, int __count, |
e109c612 UD |
116 | __off64_t __offset) __wur; |
117 | # endif | |
118 | #endif /* Use BSD */ | |
28f540f4 | 119 | |
28f540f4 RM |
120 | __END_DECLS |
121 | ||
122 | #endif /* sys/uio.h */ |