Struct heron::rapier_plugin::rapier::crossbeam::channel::SelectedOperation [−]
A selected operation that needs to be completed.
To complete the operation, call send
or recv
.
Panics
Forgetting to complete the operation is an error and might lead to deadlocks. If a
SelectedOperation
is dropped without completion, a panic occurs.
Implementations
impl<'_> SelectedOperation<'_>
pub fn index(&self) -> usize
Returns the index of the selected operation.
Examples
use crossbeam_channel::{bounded, Select}; let (s1, r1) = bounded::<()>(0); let (s2, r2) = bounded::<()>(0); let (s3, r3) = bounded::<()>(1); let mut sel = Select::new(); let oper1 = sel.send(&s1); let oper2 = sel.recv(&r2); let oper3 = sel.send(&s3); // Only the last operation is ready. let oper = sel.select(); assert_eq!(oper.index(), 2); assert_eq!(oper.index(), oper3); // Complete the operation. oper.send(&s3, ()).unwrap();
pub fn send<T>(self, s: &Sender<T>, msg: T) -> Result<(), SendError<T>>
Completes the send operation.
The passed Sender
reference must be the same one that was used in Select::send
when the operation was added.
Panics
Panics if an incorrect Sender
reference is passed.
Examples
use crossbeam_channel::{bounded, Select, SendError}; let (s, r) = bounded::<i32>(0); drop(r); let mut sel = Select::new(); let oper1 = sel.send(&s); let oper = sel.select(); assert_eq!(oper.index(), oper1); assert_eq!(oper.send(&s, 10), Err(SendError(10)));
pub fn recv<T>(self, r: &Receiver<T>) -> Result<T, RecvError>
Completes the receive operation.
The passed Receiver
reference must be the same one that was used in Select::recv
when the operation was added.
Panics
Panics if an incorrect Receiver
reference is passed.
Examples
use crossbeam_channel::{bounded, Select, RecvError}; let (s, r) = bounded::<i32>(0); drop(s); let mut sel = Select::new(); let oper1 = sel.recv(&r); let oper = sel.select(); assert_eq!(oper.index(), oper1); assert_eq!(oper.recv(&r), Err(RecvError));
Trait Implementations
impl<'_> Debug for SelectedOperation<'_>
impl<'_> Drop for SelectedOperation<'_>
pub fn drop(&mut self)
Auto Trait Implementations
impl<'a> RefUnwindSafe for SelectedOperation<'a>
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impl<'a> !Send for SelectedOperation<'a>
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impl<'a> !Sync for SelectedOperation<'a>
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impl<'a> Unpin for SelectedOperation<'a>
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impl<'a> UnwindSafe for SelectedOperation<'a>
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Any for T where
T: Any,
T: Any,
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,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> Component for T where
T: 'static + Send + Sync,
T: 'static + Send + Sync,
impl<T> Downcast for T where
T: Any,
T: Any,
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub fn as_any(&self) -> &(dyn Any + 'static)
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
impl<T> DowncastSync for T where
T: Send + Sync + Any,
T: Send + Sync + Any,
impl<T> From<T> for T
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Pointable for T
pub const ALIGN: usize
type Init = T
The type for initializers.
pub unsafe fn init(init: <T as Pointable>::Init) -> usize
pub unsafe fn deref<'a>(ptr: usize) -> &'a T
pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
pub unsafe fn drop(ptr: usize)
impl<T> Resource for T where
T: 'static + Send + Sync,
T: 'static + Send + Sync,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
SS: SubsetOf<SP>,
pub fn to_subset(&self) -> Option<SS>
pub fn is_in_subset(&self) -> bool
pub fn to_subset_unchecked(&self) -> SS
pub fn from_subset(element: &SS) -> SP
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.
pub 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.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,