Struct Used

#[repr(C)]
pub struct Used { /* private fields */ }

Representation of an entry in the used ring.

The only purpose Used has is to be passed to insert_used to be copied into the used ring. As a result the only provided method is new and there are no accessors, as the driver is the one who will be accessing it.

Implementations

impl Used

pub fn new(id: u16, len: u32) -> Used

Constructs a new used entry.

id is the index of the first descriptor in the chain being returned and len is the total number of bytes written to any writable descriptors in the chain.

Trait Implementations

impl Clone for Used

fn clone(&self) -> Used

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Used

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for Used