Trait AsyncWriteBuffer

pub trait AsyncWriteBuffer: DerefMut<Target = [u8]> + Unpin {
    type Error;
    type WriteAll<'a>: Future<Output = Result<(), Self::Error>>
       where Self: 'a;

    // Required methods
    fn poll_alloc(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
    ) -> Poll<Result<(), Self::Error>>;
    fn write_all(&mut self, count: usize) -> Self::WriteAll<'_>;

    // Provided method
    fn alloc(&mut self) -> Alloc<'_, Self>  { ... }
}

Required Associated Types

type Error

type WriteAll<'a>: Future<Output = Result<(), Self::Error>> where Self: 'a

Required Methods

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

Allocate some fixed amount of bytes in the buffer.

fn write_all(&mut self, count: usize) -> Self::WriteAll<'_>

Send exactly count bytes from buffer. Remaining bytes are discarded.

Provided Methods

fn alloc(&mut self) -> Alloc<'_, Self>

Allocate some fixed amount of bytes in the buffer.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<P: AsyncWrite + Unpin> AsyncWriteBuffer for IoBuffer<P>

type Error = Error

type WriteAll<'a> = WriteAll<'a, P> where P: 'a