Trait AsyncWriterFuture 

pub trait AsyncWriterFuture<W: AsyncWrite>: Future<Item = (W, usize), Error = (W, Error)> {
    // Required method
    fn already_written(&self) -> usize;
}

👎Deprecated:

This was a failed attempt at finding a suitable abstraction. The async-codec crate might be what you need instead.

Base trait for futures that write things into AsyncWrites.

The future must yield a previously wrapped AsyncWrite, and the number of written bytes. If there’s an error upon writing, the wrapped AsyncWrite is emitted together with the error.

Required Methods

fn already_written(&self) -> usize

👎Deprecated:

This was a failed attempt at finding a suitable abstraction. The async-codec crate might be what you need instead.

Return how many bytes have already been written.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors