1 use crate::{backend, io};
2 use backend::fd::AsFd;
3
4 pub use backend::fs::types::Advice;
5
6 /// `posix_fadvise(fd, offset, len, advice)`—Declares an expected access
7 /// pattern for a file.
8 ///
9 /// # References
10 /// - [POSIX]
11 /// - [Linux]
12 ///
13 /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/posix_fadvise.html
14 /// [Linux]: https://man7.org/linux/man-pages/man2/posix_fadvise.2.html
15 #[inline]
16 #[doc(alias = "posix_fadvise")]
fadvise<Fd: AsFd>(fd: Fd, offset: u64, len: u64, advice: Advice) -> io::Result<()>17 pub fn fadvise<Fd: AsFd>(fd: Fd, offset: u64, len: u64, advice: Advice) -> io::Result<()> {
18 backend::fs::syscalls::fadvise(fd.as_fd(), offset, len, advice)
19 }
20