mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/* Copyright (C) 2003-2013 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <sysdep.h>
|
|
|
|
/* Advice the system about the expected behaviour of the application with
|
|
respect to the file associated with FD. */
|
|
|
|
int
|
|
posix_fadvise (int fd, off_t offset, off_t len, int advise)
|
|
{
|
|
#ifdef __NR_fadvise64
|
|
INTERNAL_SYSCALL_DECL (err);
|
|
int ret = INTERNAL_SYSCALL (fadvise64, err, 6, fd, 0,
|
|
__LONG_LONG_PAIR (offset >> 31, offset), len,
|
|
advise);
|
|
if (INTERNAL_SYSCALL_ERROR_P (ret, err))
|
|
return INTERNAL_SYSCALL_ERRNO (ret, err);
|
|
return 0;
|
|
#else
|
|
return ENOSYS;
|
|
#endif
|
|
}
|