Function nc::syncfs

pub unsafe fn syncfs(fd: i32) -> Result<(), Errno>

Commit filesystem cache related to fd to disk.

Example

let path = "/etc/passwd";
let ret = unsafe { nc::openat(nc::AT_FDCWD, path, nc::O_RDONLY, 0) };
assert!(ret.is_ok());
let fd = ret.unwrap();
let ret = unsafe {nc::syncfs(fd) };
assert!(ret.is_ok());
let ret = unsafe { nc::close(fd) };
assert!(ret.is_ok());