1 | /* Copyright (C) 2003-2016 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 | #define posix_fadvise64 __no_posix_fadvise64 |
19 | #include <errno.h> |
20 | #include <fcntl.h> |
21 | #include <sysdep.h> |
22 | #undef posix_fadvise64 |
23 | |
24 | /* Advice the system about the expected behaviour of the application with |
25 | respect to the file associated with FD. */ |
26 | |
27 | int |
28 | posix_fadvise (int fd, off_t offset, off_t len, int advise) |
29 | { |
30 | #ifdef __NR_fadvise64 |
31 | INTERNAL_SYSCALL_DECL (err); |
32 | int ret = INTERNAL_SYSCALL (fadvise64, err, 4, fd, offset, len, advise); |
33 | if (INTERNAL_SYSCALL_ERROR_P (ret, err)) |
34 | return INTERNAL_SYSCALL_ERRNO (ret, err); |
35 | return 0; |
36 | #else |
37 | return ENOSYS; |
38 | #endif |
39 | } |
40 | weak_alias (posix_fadvise, posix_fadvise64) |
41 | |