Struct layered_io::SliceReader

pub struct SliceReader<'slice> { /* fields omitted */ }

Adapts an &[u8] to implement ReadLayered.

Implementations

impl<'slice> SliceReader<'slice>

pub fn new(slice: &'slice [u8]) -> Self

Construct a new SliceReader which wraps slice.

Trait Implementations

impl<'slice> Bufferable for SliceReader<'slice>

fn abandon(&mut self)

Close the resource and abandon any pending buffered contents or errors.

fn suggested_buffer_size(&self) -> usize

A suggested size, in bytes, for buffering for performance.

impl<'slice> Read for SliceReader<'slice>

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

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize>

Like read, except that it reads into a slice of buffers.

fn is_read_vectored(&self) -> bool

🔬 This is a nightly-only experimental API. (can_vector)

Determines if this Reader has an efficient read_vectored implementation.

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>

Read all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize>

Read all bytes until EOF in this source, appending them to buf.

fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>

Read the exact number of bytes required to fill buf.

pub unsafe fn initializer(&self) -> Initializer

🔬 This is a nightly-only experimental API. (read_initializer)

Determines if this Reader can work with buffers of uninitialized memory.

pub fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Read.

pub fn bytes(self) -> Bytes<Self>

Transforms this Read instance to an Iterator over its bytes.

pub fn chain<R>(self, next: R) -> Chain<Self, R> where
    R: Read, 

Creates an adaptor which will chain this stream with another.

pub fn take(self, limit: u64) -> Take<Self>

Creates an adaptor which will read at most limit bytes from it.

impl<'slice> ReadLayered for SliceReader<'slice>

fn read_with_status(&mut self, buf: &mut [u8]) -> Result<(usize, Status)>

Like Read::read, but also returns a Status.

fn read_vectored_with_status(
    &mut self,
    bufs: &mut [IoSliceMut<'_>]
) -> Result<(usize, Status)>

Like Read::read_vectored, but also returns a Status.

fn read_exact_using_status(&mut self, buf: &mut [u8]) -> Result<Status>

Like Read::read_exact, but uses read_with_status to avoid performing an extra read at the end.

fn minimum_buffer_size(&self) -> usize

Some streams require a buffer of at least a certain size.