1.36.0[−][src]Struct std::task::Waker
A Waker
is a handle for waking up a task by notifying its executor that it
is ready to be run.
This handle encapsulates a RawWaker
instance, which defines the
executor-specific wakeup behavior.
Methods
impl Waker
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pub fn wake(self)
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Wake up the task associated with this Waker
.
pub fn wake_by_ref(&self)
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Wake up the task associated with this Waker
without consuming the Waker
.
This is similar to wake
, but may be slightly less efficient in the case
where an owned Waker
is available. This method should be preferred to
calling waker.clone().wake()
.
pub fn will_wake(&self, other: &Waker) -> bool
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Returns true
if this Waker
and another Waker
have awoken the same task.
This function works on a best-effort basis, and may return false even
when the Waker
s would awaken the same task. However, if this function
returns true
, it is guaranteed that the Waker
s will awaken the same task.
This function is primarily used for optimization purposes.
pub unsafe fn from_raw(waker: RawWaker) -> Waker
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Creates a new Waker
from RawWaker
.
The behavior of the returned Waker
is undefined if the contract defined
in RawWaker
's and RawWakerVTable
's documentation is not upheld.
Therefore this method is unsafe.
Trait Implementations
impl Unpin for Waker
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impl Send for Waker
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impl Clone for Waker
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fn clone(&self) -> Waker
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fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl Debug for Waker
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impl Sync for Waker
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impl Drop for Waker
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Blanket Implementations
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> 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> 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> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
ⓘImportant traits for &'_ mut Ffn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,