Struct SignalGuardActive

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pub struct SignalGuardActive;

Expand description

What: The typed reason a second signal guard is refused while one is active. Why: Callers that wait for the guard to be free must recognize this refusal by its type, not by its wording (issue 1346).

In TS you’d write (pseudocode):

class SignalGuardActiveError extends Error {}

Trait Implementations§

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impl Debug for SignalGuardActive

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl Display for SignalGuardActive

The wording of the refusal.

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fn fmt(&self, formatter: &mut Formatter<'_>) -> Result

Writes the wording of the refusal.

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impl Error for SignalGuardActive

1.30.0 · Source§

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more

1.0.0 · Source§

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

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fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports. Read more

Auto Trait Implementations§

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impl UnwindSafe for SignalGuardActive

Blanket Implementations§

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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> ErrorExt for T
where T: Error + Send + Sync + 'static,

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fn raise(self) -> Exn<Self>
where Self: Sized,

Raise this error as a new exception.

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fn and_raise<T>(self, context: T) -> Exn<T>
where T: Error + Send + Sync + 'static, Self: Sized,

Raise this error as a child of a new exception with the given context error. Read more

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fn raise_erased(self) -> Exn
where Self: Sized,

Raise this error as a new exception, with type erasure.

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fn raise_all<T, I>(self, sources: I) -> Exn<Self>
where Self: Sized, T: Error + Send + Sync + 'static, I: IntoIterator, ::Item: Into<Exn<T>>,

Raise this error as a new exception, with sources as causes.

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into 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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