Struct futures_util::sink::Drain
source · pub struct Drain<T> {
marker: PhantomData<T>,
}
Expand description
Sink for the drain
function.
Fields§
§marker: PhantomData<T>
Trait Implementations§
source§impl<T> Sink<T> for Drain<T>
impl<T> Sink<T> for Drain<T>
source§type Error = Infallible
type Error = Infallible
The type of value produced by the sink when an error occurs.
source§fn poll_ready(
self: Pin<&mut Self>,
_cx: &mut Context<'_>,
) -> Poll<Result<(), Self::Error>>
fn poll_ready( self: Pin<&mut Self>, _cx: &mut Context<'_>, ) -> Poll<Result<(), Self::Error>>
Attempts to prepare the
Sink
to receive a value. Read moresource§fn start_send(self: Pin<&mut Self>, _item: T) -> Result<(), Self::Error>
fn start_send(self: Pin<&mut Self>, _item: T) -> Result<(), Self::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(()))
. Read moreimpl<T> Unpin for Drain<T>
Auto Trait Implementations§
impl<T> Freeze for Drain<T>
impl<T> RefUnwindSafe for Drain<T>where
T: RefUnwindSafe,
impl<T> Send for Drain<T>where
T: Send,
impl<T> Sync for Drain<T>where
T: Sync,
impl<T> UnwindSafe for Drain<T>where
T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<T, Item> SinkExt<Item> for T
impl<T, Item> SinkExt<Item> for T
source§fn with<U, Fut, F, E>(self, f: F) -> With<Self, Item, U, Fut, F>
fn with<U, Fut, F, E>(self, f: F) -> With<Self, Item, U, Fut, F>
Composes a function in front of the sink. Read more
source§fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, Item, U, St, F>
fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, Item, U, St, F>
Composes a function in front of the sink. Read more
source§fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F>
fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F>
Transforms the error returned by the sink.
source§fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E>
fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E>
Map this sink’s error to a different error type using the
Into
trait. Read moresource§fn buffer(self, capacity: usize) -> Buffer<Self, Item>where
Self: Sized,
fn buffer(self, capacity: usize) -> Buffer<Self, Item>where
Self: Sized,
Adds a fixed-size buffer to the current sink. Read more
source§fn flush(&mut self) -> Flush<'_, Self, Item> ⓘwhere
Self: Unpin,
fn flush(&mut self) -> Flush<'_, Self, Item> ⓘwhere
Self: Unpin,
Flush the sink, processing all pending items. Read more
source§fn send(&mut self, item: Item) -> Send<'_, Self, Item> ⓘwhere
Self: Unpin,
fn send(&mut self, item: Item) -> Send<'_, Self, Item> ⓘwhere
Self: Unpin,
A future that completes after the given item has been fully processed
into the sink, including flushing. Read more
source§fn feed(&mut self, item: Item) -> Feed<'_, Self, Item> ⓘwhere
Self: Unpin,
fn feed(&mut self, item: Item) -> Feed<'_, Self, Item> ⓘwhere
Self: Unpin,
A future that completes after the given item has been received
by the sink. Read more
source§fn send_all<'a, St>(&'a mut self, stream: &'a mut St) -> SendAll<'a, Self, St> ⓘ
fn send_all<'a, St>(&'a mut self, stream: &'a mut St) -> SendAll<'a, Self, St> ⓘ
A future that completes after the given stream has been fully processed
into the sink, including flushing. Read more
source§fn right_sink<Si1>(self) -> Either<Si1, Self> ⓘ
fn right_sink<Si1>(self) -> Either<Si1, Self> ⓘ
source§fn poll_ready_unpin(
&mut self,
cx: &mut Context<'_>,
) -> Poll<Result<(), Self::Error>>where
Self: Unpin,
fn poll_ready_unpin(
&mut self,
cx: &mut Context<'_>,
) -> Poll<Result<(), Self::Error>>where
Self: Unpin,
A convenience method for calling
Sink::poll_ready
on Unpin
sink types.source§fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error>where
Self: Unpin,
fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error>where
Self: Unpin,
A convenience method for calling
Sink::start_send
on Unpin
sink types.