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
|
/* Declare an access pattern hint for files.
Copyright (C) 2010-2020 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Without this pragma, gcc suggests that (given !HAVE_POSIX_FADVISE)
the fdadvise function might be a candidate for attribute 'const'. */
#if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
# pragma GCC diagnostic ignored "-Wsuggest-attribute=const"
#endif
#include <config.h>
#include "fadvise.h"
#include <stdio.h>
#include <fcntl.h>
#include "ignore-value.h"
void
fdadvise (int fd, off_t offset, off_t len, fadvice_t advice)
{
#if HAVE_POSIX_FADVISE
ignore_value (posix_fadvise (fd, offset, len, advice));
#endif
}
void
fadvise (FILE *fp, fadvice_t advice)
{
if (fp)
fdadvise (fileno (fp), 0, 0, advice);
}
|
