Struct ordcode::buf::DeBytesReader

pub struct DeBytesReader<'a> { /* fields omitted */ }

Adapter type which implements double-ended read buffer over byte slice

Implements ReadBytes, TailReadBytes traits and intended to be used as input to Deserializer.

Implementations

impl<'a> DeBytesReader<'a>

#[must_use]pub fn new(buf: &'a [u8]) -> Self

Constructs reader from provided byte slice

Trait Implementations

impl<'_> Read for DeBytesReader<'_>

pub 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.

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

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

pub 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.

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

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

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

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

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

Read the exact number of bytes required to fill buf.

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<'a> ReadBytes for DeBytesReader<'a>

pub fn peek<F, R>(&mut self, n: usize, f: F) -> Result<R> where
    F: FnOnce(&[u8]) -> Result<R>, 

Peek n bytes from head

pub fn advance(&mut self, n: usize)

Advance buffer head by n bytes. n should be smaller than remaining buffer size.

pub fn remaining_buffer(&mut self) -> &[u8]

Returns view into remaining buffer

pub fn read<F, R>(&mut self, n: usize, f: F) -> Result<R> where
    F: FnOnce(&[u8]) -> Result<R>, 

Get n bytes from the beginning of buffer, advance by n bytes

pub fn is_complete(&mut self) -> Result

Check if buffer is fully consumed (empty)

impl<'a> TailReadBytes for DeBytesReader<'a>

pub fn peek_tail<F, R>(&mut self, n: usize, f: F) -> Result<R> where
    F: FnOnce(&[u8]) -> Result<R>, 

pub fn advance_tail(&mut self, n: usize)

Advance buffer head by n bytes. n should be smaller than remaining buffer size.

pub fn read_tail<F, R>(&mut self, n: usize, f: F) -> Result<R> where
    F: FnOnce(&[u8]) -> Result<R>, 

Get n bytes from the beginning of buffer, advance by n bytes