Struct PinnedMemory 

pub struct PinnedMemory<T>
where
    T: Copy,
{
    ptr: NonNull<T>,
    len: usize,
    layout: Layout,
    _marker: PhantomData<T>,
}

Pinned (page-locked) host memory for efficient DMA transfers.

Pinned memory allows direct DMA transfers between host and device without intermediate copying, significantly improving transfer performance.

Fields

ptr: NonNull<T>

len: usize

layout: Layout

_marker: PhantomData<T>

Implementations

impl<T> PinnedMemory<T>

where T: Copy,

pub fn new(count: usize) -> Result<PinnedMemory<T>, RingKernelError>

Allocate pinned memory for count elements.

Safety

The underlying memory is uninitialized. Caller must ensure data is initialized before reading.

pub fn from_slice(data: &[T]) -> Result<PinnedMemory<T>, RingKernelError>

Create pinned memory from a slice, copying the data.

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

Get slice reference.

pub fn as_mut_slice(&mut self) -> &mut [T]

Get mutable slice reference.

pub fn as_ptr(&self) -> *const T

Get raw pointer.

pub fn as_mut_ptr(&mut self) -> *mut T

Get mutable raw pointer.

pub fn len(&self) -> usize

Get number of elements.

pub fn is_empty(&self) -> bool

Check if empty.

pub fn size_bytes(&self) -> usize

Get size in bytes.

Trait Implementations

impl<T> Drop for PinnedMemory<T>

where T: Copy,

fn drop(&mut self)

Executes the destructor for this type.

impl<T> Send for PinnedMemory<T>

where T: Copy + Send,

impl<T> Sync for PinnedMemory<T>

where T: Copy + Sync,