Struct BufferReader 

pub struct BufferReader<'a, const C: usize, T: AsRef<[u8]> + AsMut<[u8]>> { /* private fields */ }

A type to read from an AsyncBuffer

Implementations

impl<'a, const C: usize, T: AsRef<[u8]> + AsMut<[u8]>> BufferReader<'a, C, T>

pub fn read_slice<F, U>(&self, f: F) -> Result<U, BufferError>

where F: FnOnce(&[u8]) -> (usize, U),

Ready from the currently available data in the BufferReader. The readable part of the buffer is passed to f. f returns the number of bytes read and a result that is passed back to the caller.

pub fn read_slice_async<F, U>( &self, f: F, ) -> impl Future<Output = Result<U, BufferError>>

where F: FnMut(&[u8]) -> ReadSliceAsyncResult<U>,

pub fn pull( &self, buf: &mut [u8], ) -> impl Future<Output = Result<(), BufferError>>

pub fn wait_for_new_data<'b>(&'b self) -> NewDataFuture<'a, 'b, C, T>

pub fn reset(&self)

Trait Implementations

impl<'a, const C: usize, T: AsRef<[u8]> + AsMut<[u8]>> ErrorType for BufferReader<'a, C, T>

type Error = ErrorKind

Error type of all the IO operations on this type.

impl<'a, const C: usize, T: AsRef<[u8]> + AsMut<[u8]>> Read for BufferReader<'a, C, T>

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

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

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

Read the exact number of bytes required to fill buf.

impl<'a, const C: usize, T: AsRef<[u8]> + AsMut<[u8]>> Read for BufferReader<'a, C, T>

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, 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” adaptor 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.