Trait AsyncVariableReadable 

pub trait AsyncVariableReadable {
    type Error;

    // Required method
    fn poll_read_single(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
        buf: &mut Option<u8>,
    ) -> Poll<Result<u8, Self::Error>>;

    // Provided methods
    fn poll_read_more(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
        buf: &mut ReadBuf<'_>,
    ) -> Poll<Result<(), Self::Error>> { ... }
    fn poll_read_more_buf<'a, B: BufMut>(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
        bytes: &'a mut B,
    ) -> Poll<Result<(), Self::Error>> { ... }
}

Available on crate feature async only.

Required Associated Types

type Error

Required Methods

fn poll_read_single( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &mut Option<u8>, ) -> Poll<Result<u8, Self::Error>>

Provided Methods

fn poll_read_more( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &mut ReadBuf<'_>, ) -> Poll<Result<(), Self::Error>>

fn poll_read_more_buf<'a, B: BufMut>( self: Pin<&mut Self>, cx: &mut Context<'_>, bytes: &'a mut B, ) -> Poll<Result<(), Self::Error>>

Available on crate feature bytes only.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<R: AsyncRead + Unpin> AsyncVariableReadable for R

Available on crate feature tokio-comp only.

type Error = Error