Struct genio::std_impls::GenioIo

pub struct GenioIo<T>(_);

Wrapper providing genio::Read + genio::Write traits for std::io::Read + std::io::Write types.

Methods

impl<T: Read + Write> GenioIo<T>

pub fn new(io: T) -> Self

Wraps std reader+writer into genio reader+writer.

pub fn into_inner(self) -> T

Unwraps std reader+writer into genio reader+writer.

Trait Implementations

impl<T: Read> Read for GenioIo<T>

type ReadError = Error

Value of this type is returned when read() fails.

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_exact(
    &mut self,
    buf: &mut [u8]
) -> Result<(), ReadExactError<Self::ReadError>>

Read the exact number of bytes required to fill buf.

fn available_bytes(&self, _at_least: usize) -> bool

Hints whether there are at least at_least bytes available.

fn chain<R: Read>(self, other: R) -> Chain<Self, R> where
    Self: Sized, 

Chains another reader after self. When self ends (returns Ok(0)), the other reader will provide bytes to read.

fn read_to_end<T: ExtendFromReader>(
    &mut self,
    container: &mut T
) -> Result<usize, ExtendError<Self::ReadError, T::ExtendError>> where
    Self: ReadOverwrite, 

Reads all bytes into any type that can be extended by a reader. This is more generic than the case of std::io and might enable some optimizations.

fn by_ref(&mut self) -> &mut Self where
    Self: Sized, 

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

impl<T: Write> Write for GenioIo<T>

type WriteError = Error

Value of this type is returned when write() fails.

type FlushError = Error

Value of this type is returned when flush() fails. In case of low-level writers flush often does nothing and therefore doesn't return error, so this type might be Void.

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

Write a buffer into this object, returning how many bytes were written.

fn flush(&mut self) -> Result<(), Error>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn size_hint(&mut self, _bytes: usize)

Hints the writer how much bytes will be written after call to this function. If the maximum amount of bytes to be written is known then it should be passed as argument. If the maximum amount is unknown, then minimum should be passed.

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

Attempts to write an entire buffer into this Write.

fn uses_size_hint(&self) -> bool

Reports to the caller whether size hint is actually used. This can prevent costly computation of size hint that would be thrown away.