Struct FlatRingMem

pub struct FlatRingMem { /* private fields */ }

An implementation of RingMem over a flat allocation. Useful for tests.

Implementations

impl FlatRingMem

pub fn new(len: usize) -> Self

Allocates a new memory.

Trait Implementations

impl Clone for FlatRingMem

fn clone(&self) -> FlatRingMem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FlatRingMem

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

Formats the value using the given formatter.

impl RingMem for FlatRingMem

fn read_at(&self, addr: usize, data: &mut [u8])

Reads from the data portion of the ring, wrapping (once) at the end of the ring. Precondition: addr + data.len() <= self.len() * 2.

fn write_at(&self, addr: usize, data: &[u8])

Writes to the data portion of the ring, wrapping (once) at the end of the ring. Precondition: addr + data.len() <= self.len() * 2.

fn control(&self) -> &[AtomicU32; 32]

Returns the control page.

fn len(&self) -> usize

Returns the length of the ring in bytes.

fn read_aligned(&self, addr: usize, data: &mut [u8])

Reads from the data portion of the ring, as in RingMem::read_at. addr and data.len() must be multiples of 8.

fn write_aligned(&self, addr: usize, data: &[u8])

Writes to the data portion of the ring, as in RingMem::write_at. addr and data.len() must be multiples of 8.