Struct Reader 

pub struct Reader<B>(/* private fields */);

Adapts an IoBuf to implement the std::io::Read trait.

This can be constructed with IoBuf::into_reader

Implementations

impl<B> Reader<B>

pub fn new(buf: B) -> Reader<B>

where B: IoBuf,

Creates a new Reader from the given buffer.

pub fn as_inner(&self) -> &B

Returns a reference to the inner buffer.

pub fn as_inner_mut(&mut self) -> &mut B

Returns a mutable reference to the inner buffer.

pub fn progress(&self) -> usize

Returns the number of bytes that have been read so far.

impl<B> Reader<B>

where B: IoBuf,

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

Returns the remaining bytes to be read.

pub fn into_remaining(self) -> Slice<B>

Consumes the reader and returns the remaining bytes to be read.

Trait Implementations

impl<B> IntoInner for Reader<B>

type Inner = B

The inner type.

fn into_inner(self) -> <Reader<B> as IntoInner>::Inner

Get the inner buffer.

impl<B> Read for Reader<B>

where B: IoBuf,

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

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, Error>

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, Error>

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

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

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

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

Reads the exact number of bytes required to fill buf.

fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>

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

Pull some bytes from this source into the specified buffer.

fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>

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

Reads the exact number of bytes required to fill cursor.

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

where Self: Sized,

Creates a “by reference” adapter for this instance of Read.

fn bytes(self) -> Bytes<Self>

where Self: Sized,

Transforms this Read instance to an Iterator over its bytes.

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

where R: Read, Self: Sized,

Creates an adapter which will chain this stream with another.

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

where Self: Sized,

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

fn read_array<const N: usize>(&mut self) -> Result<[u8; N], Error>

where Self: Sized,

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

Read and return a fixed array of bytes from this source.