Trait WriteReady 

pub trait WriteReady {
    type Ok;
    type Err: Error + Send + Sync;

    // Required method
    fn poll_write_ready(
        &mut self,
        waker: &Waker,
    ) -> Poll<Result<Self::Ok, Self::Err>>;
}

Determine if the underlying API can be written to.

Required Associated Types

type Ok

The type of successful values yielded by this trait.

type Err: Error + Send + Sync

The type of failures yielded by this trait.

Required Methods

fn poll_write_ready( &mut self, waker: &Waker, ) -> Poll<Result<Self::Ok, Self::Err>>

Check if the underlying API can be written to.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors