Trait Buffer

pub trait Buffer<'a>: Sized + 'a {
    // Required methods
    fn empty() -> Self;
    fn length(&self) -> usize;
    fn split_at(self, index: usize) -> Option<[Self; 2]>;
    fn copy_from_slice_exact(self, src: &[u8]) -> Result<()>;
    fn zero_out(self) -> Result<()>;
}

Abstraction between &mut u8 and the kernel’s UserSliceWo.

Required Methods

fn empty() -> Self

fn length(&self) -> usize

fn split_at(self, index: usize) -> Option<[Self; 2]>

Split all of self into two disjoint contiguous subbuffers of lengths index and `length

• index` respectively.

Returns None if and only if index > length.

fn copy_from_slice_exact(self, src: &[u8]) -> Result<()>

Copy from src, lengths must match exactly.

Allowed to overwrite subsequent buffer space, for performance reasons. Can be changed in the future if too restrictive.

fn zero_out(self) -> Result<()>

Write zeroes to this part of the buffer.

Allowed to overwrite subsequent buffer space, for performance reasons. Can be changed in the future if too restrictive.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<'a> Buffer<'a> for &'a mut [u8]

fn empty() -> Self

fn length(&self) -> usize

fn split_at(self, index: usize) -> Option<[Self; 2]>

fn copy_from_slice_exact(self, src: &[u8]) -> Result<()>

fn zero_out(self) -> Result<()>

Implementors