Function nc::swapon

source ·

pub unsafe fn swapon<P: AsRef<Path>>(
    filename: P,
    flags: i32
) -> Result<(), Errno>

Expand description

Start swapping to file/device.

§Example

let filename = "/dev/sda-no-exist";
let ret = unsafe { nc::swapon(filename, nc::SWAP_FLAG_PREFER) };
assert!(ret.is_err());
assert_eq!(ret, Err(nc::EPERM));