Trait embedded_io::asynch::Read

pub trait Read: Io {
    async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;

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

Available on crate feature async only.

Semantics are the same as std::io::Read, check its documentation for details.

Required Methods

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

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

Provided Methods

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

Read the exact number of bytes required to fill buf.

Implementations on Foreign Types

impl<T: ?Sized + Read> Read for &mut T

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

impl Read for &[u8]

Read is implemented for &[u8] by copying from the slice.

Note that reading updates the slice to point to the yet unread part. The slice will be empty when EOF is reached.

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

impl<T: ?Sized + Read> Read for Box<T>

Available on crate features std or alloc only.

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

Implementors

impl<T: AsyncRead + Unpin + ?Sized> Read for FromTokio<T>

Available on crate feature tokio only.

impl<T: AsyncRead + Unpin + ?Sized> Read for FromFutures<T>

Available on crate feature futures only.