Function nc::statfs

pub fn statfs(filename: &str, buf: &mut statfs_t) -> Result<(), Errno>

Get filesystem statistics.

let path = "/usr";
let mut statfs = nc::statfs_t::default();
let ret = nc::statfs(path, &mut statfs);
assert!(ret.is_ok());
assert!(statfs.f_bfree > 0);
assert!(statfs.f_bavail > 0);