Struct futures::prelude::sink::Drain

pub struct Drain<T> { /* private fields */ }

Sink for the drain function.

Trait Implementations

impl<T> Clone for Drain<T>

fn clone(&self) -> Drain<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for Drain<T>where T: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<T> Sink<T> for Drain<T>

type Error = Infallible

The type of value produced by the sink when an error occurs.

fn poll_ready( self: Pin<&mut Drain<T>>, _cx: &mut Context<'_> ) -> Poll<Result<(), <Drain<T> as Sink<T>>::Error>>

Attempts to prepare the Sink to receive a value.

fn start_send( self: Pin<&mut Drain<T>>, _item: T ) -> Result<(), <Drain<T> as Sink<T>>::Error>

Begin the process of sending a value to the sink. Each call to this function must be preceded by a successful call to poll_ready which returned Poll::Ready(Ok(())).

fn poll_flush( self: Pin<&mut Drain<T>>, _cx: &mut Context<'_> ) -> Poll<Result<(), <Drain<T> as Sink<T>>::Error>>

Flush any remaining output from this sink.

fn poll_close( self: Pin<&mut Drain<T>>, _cx: &mut Context<'_> ) -> Poll<Result<(), <Drain<T> as Sink<T>>::Error>>

Flush any remaining output and close this sink, if necessary.

impl<T> Unpin for Drain<T>