[−][src]Struct tokio_sync::oneshot::Sender
Sends a value to the associated Receiver
.
Instances are created by the channel
function.
Methods
impl<T> Sender<T>
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pub fn send(self, t: T) -> Result<(), T>
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Completes this oneshot with a successful result.
The function consumes self
and notifies the Receiver
handle that a
value is ready to be received.
If the value is successfully enqueued for the remote end to receive,
then Ok(())
is returned. If the receiving end was dropped before this
function was called, however, then Err
is returned with the value
provided.
pub fn poll_close(&mut self) -> Poll<(), ()>
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Check if the associated Receiver
handle has been dropped.
Return values
If Ok(Ready)
is returned then the associated Receiver
has been
dropped, which means any work required for sending should be canceled.
If Ok(NotReady)
is returned then the associated Receiver
is still
alive and may be able to receive a message if sent. The current task is
registered to receive a notification if the Receiver
handle goes away.
pub fn is_closed(&self) -> bool
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Check if the associated Receiver
handle has been dropped.
Unlike poll_close
, this function does not register a task for
wakeup upon close.
Trait Implementations
Auto Trait Implementations
impl<T> Send for Sender<T> where
T: Send,
T: Send,
impl<T> Unpin for Sender<T>
impl<T> Sync for Sender<T> where
T: Send,
T: Send,
impl<T> !UnwindSafe for Sender<T>
impl<T> !RefUnwindSafe for Sender<T>
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,