Struct MemoryBlock

pub struct MemoryBlock { /* private fields */ }

A DMA target.

Implementations

impl MemoryBlock

pub fn new<T: 'static + MappedDmaTarget>(mem: T) -> Self

Creates a new memory block backed by mem.

pub fn subblock(&self, offset: usize, len: usize) -> Self

Returns a view of a subset of the buffer.

pub fn base(&self) -> *const u8

Get the base address of the buffer.

pub fn len(&self) -> usize

Gets the length of the buffer in bytes.

pub fn pfns(&self) -> &[u64]

Gets the PFNs of the underlying memory.

pub fn pfn_bias(&self) -> u64

Gets the pfn_bias of the underlying memory.

pub fn as_slice(&self) -> &[AtomicU8]

Gets the buffer as an atomic slice.

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

Reads from the buffer into data.

pub fn read_obj<T: FromBytes + Immutable + KnownLayout>( &self, offset: usize, ) -> T

Reads an object from the buffer at offset.

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

Writes into the buffer from data.

pub fn write_obj<T: IntoBytes + Immutable + KnownLayout>( &self, offset: usize, data: &T, )

Writes an object into the buffer at offset.

pub fn offset_in_page(&self) -> u32

Returns the offset of the beginning of the buffer in the first page returned by Self::pfns.

Trait Implementations

impl Clone for MemoryBlock

fn clone(&self) -> MemoryBlock

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryBlock

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

Formats the value using the given formatter.

impl Send for MemoryBlock

impl Sync for MemoryBlock