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
|
/* vi: set sw=4 ts=4: */
/*
* posix_fadvise64() for MIPS uClibc
* http://www.opengroup.org/onlinepubs/009695399/functions/posix_fadvise.html
*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <features.h>
#include <unistd.h>
#include <errno.h>
#include <endian.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/syscall.h>
#include <fcntl.h>
#ifdef __UCLIBC_HAS_LFS__
int posix_fadvise64(int fd, __off64_t offset, __off64_t len, int advice)
{
/* MIPS kernel only has NR_fadvise64 which acts as NR_fadvise64_64 */
#ifdef __NR_fadvise64
INTERNAL_SYSCALL_DECL(err);
# if _MIPS_SIM == _MIPS_SIM_ABI32
int ret = INTERNAL_SYSCALL(fadvise64, err, 7, fd, 0,
__LONG_LONG_PAIR ((long) (offset >> 32), (long) offset),
__LONG_LONG_PAIR ((long) (len >> 32), (long) len),
advice);
# else /* N32 || N64 */
int ret = INTERNAL_SYSCALL(fadvise64, err, 4, fd, offset, len, advice);
# endif
if (INTERNAL_SYSCALL_ERROR_P (ret, err))
return INTERNAL_SYSCALL_ERRNO (ret, err);
return 0;
#else
return ENOSYS;
#endif
}
#endif /* __UCLIBC_HAS_LFS__ */
|
