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ErrorHandle

polars_utils::async_utils::error_capture

Struct ErrorHandle 

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pub struct ErrorHandle<ErrorT> { /* private fields */ }
Available on crate feature async-utils only.
Expand description

Handle to await the completion of multiple tasks. Propagates error results and resumes unwinds when joined.

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impl<ErrorT> ErrorHandle<ErrorT>

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pub fn has_errored(&self) -> bool

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pub async fn join(self) -> Result<(), ErrorT>

Block until either an error is received, or all ErrorCaptures associated with this handle are dropped (i.e. successful completion of all wrapped futures).

§Panics

If a panic is received, this will resume unwinding.

Auto Trait Implementations§

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impl<ErrorT> Freeze for ErrorHandle<ErrorT>
where Receiver<ErrorMessage<ErrorT>>: Freeze,

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impl<ErrorT> RefUnwindSafe for ErrorHandle<ErrorT>
where Receiver<ErrorMessage<ErrorT>>: RefUnwindSafe,

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impl<ErrorT> Send for ErrorHandle<ErrorT>
where Receiver<ErrorMessage<ErrorT>>: Send,

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impl<ErrorT> Sync for ErrorHandle<ErrorT>
where Receiver<ErrorMessage<ErrorT>>: Sync,

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impl<ErrorT> Unpin for ErrorHandle<ErrorT>
where Receiver<ErrorMessage<ErrorT>>: Unpin,

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impl<ErrorT> UnsafeUnpin for ErrorHandle<ErrorT>
where Receiver<ErrorMessage<ErrorT>>: UnsafeUnpin,

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impl<ErrorT> UnwindSafe for ErrorHandle<ErrorT>
where Receiver<ErrorMessage<ErrorT>>: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> Ungil for T
where T: Send,