Struct ScatterGatherList 

pub struct ScatterGatherList { /* private fields */ }

Scatter-gather list for zero-copy I/O

Implementations

impl ScatterGatherList

pub fn new() -> Self

Create new scatter-gather list

pub fn add_segment(&mut self, addr: u64, length: usize)

Add segment

pub fn total_length(&self) -> usize

Get total length

pub fn segments(&self) -> &[ScatterGatherSegment]

Get segments

pub fn segment_count(&self) -> usize

Number of segments

pub fn is_empty(&self) -> bool

Check if empty

pub fn copy_to_buffer(&self, buf: &mut [u8]) -> Result<usize, KernelError>

Copy scatter-gather segments to a contiguous output buffer.

Reads from each segment’s physical address (via the kernel’s direct physical memory mapping) and copies the data sequentially into buf.

pub fn assemble(&self) -> Result<Vec<u8>, KernelError>

Assemble all scatter-gather segments into a single contiguous Vec.

This is the fallback path when hardware scatter-gather is not available.

Trait Implementations

impl Default for ScatterGatherList

fn default() -> Self

Returns the “default value” for a type.