Struct DmaBuffer 

pub struct DmaBuffer<const N: usize> { /* private fields */ }

DMA buffer aligned to OS page boundaries (4096 bytes).

Required for O_DIRECT (Linux) and FILE_FLAG_NO_BUFFERING (Windows) to ensure the NVMe controller can DMA directly into the buffer without kernel intervention.

Implementations

impl<const N: usize> DmaBuffer<N>

pub fn new() -> Self

Creates a new zero-initialized DMA buffer.

Panics

Panics if N is not a multiple of PAGE_SIZE (4096).

pub fn as_slice(&self) -> &[u8]

Returns the buffer as a byte slice.

pub fn as_mut_slice(&mut self) -> &mut [u8]

Returns the buffer as a mutable byte slice.

pub fn len(&self) -> usize

Returns the buffer length in bytes.

pub fn is_empty(&self) -> bool

Returns true if the buffer is empty.

pub fn f64_capacity(&self) -> usize

Returns the number of f64 values this buffer can hold.

Trait Implementations

impl<const N: usize> Default for DmaBuffer<N>

fn default() -> Self

Returns the “default value” for a type.