signal_hook::iterator::backend

Enum PollResult

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pub enum PollResult<O> {
    Signal(O),
    Pending,
    Closed,
    Err(Error),
}
Expand description

Possible results of the poll_signal function.

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Signal(O)

A signal arrived

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Pending

There are no signals yet but there may arrive some in the future

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Closed

The iterator was closed. There won’t be any signals reported from now on.

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Err(Error)

An error happened during polling for arrived signals.

Auto Trait Implementations§

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impl<O> Freeze for PollResult<O>
where O: Freeze,

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impl<O> !RefUnwindSafe for PollResult<O>

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impl<O> Send for PollResult<O>
where O: Send,

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impl<O> Sync for PollResult<O>
where O: Sync,

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impl<O> Unpin for PollResult<O>
where O: Unpin,

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impl<O> !UnwindSafe for PollResult<O>

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

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type Error = Infallible

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.