1 | /* Copyright (C) 2016-2018 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
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. |
8 | |
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 |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <sys/uio.h> |
19 | #include <sysdep-cancel.h> |
20 | |
21 | #ifdef __ASSUME_PWRITEV |
22 | |
23 | # ifndef __NR_pwritev64 |
24 | # define __NR_pwritev64 __NR_pwritev |
25 | # endif |
26 | |
27 | ssize_t |
28 | pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset) |
29 | { |
30 | return SYSCALL_CANCEL (pwritev64, fd, vector, count, LO_HI_LONG (offset)); |
31 | } |
32 | #else |
33 | static ssize_t __atomic_pwritev64_replacement (int, const struct iovec *, |
34 | int, off64_t); |
35 | ssize_t |
36 | pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset) |
37 | { |
38 | #ifdef __NR_pwritev64 |
39 | ssize_t result = SYSCALL_CANCEL (pwritev64, fd, vector, count, |
40 | LO_HI_LONG (offset)); |
41 | if (result >= 0 || errno != ENOSYS) |
42 | return result; |
43 | #endif |
44 | return __atomic_pwritev64_replacement (fd, vector, count, offset); |
45 | } |
46 | # define PWRITEV static __atomic_pwritev64_replacement |
47 | # define PWRITE __pwrite64 |
48 | # define OFF_T off64_t |
49 | # include <sysdeps/posix/pwritev_common.c> |
50 | #endif |
51 | libc_hidden_def (pwritev64) |
52 | |
53 | #ifdef __OFF_T_MATCHES_OFF64_T |
54 | strong_alias (pwritev64, pwritev) |
55 | libc_hidden_def (pwritev) |
56 | #endif |
57 | |