Struct futures::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>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

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