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WeakScope

rama::graceful

Struct WeakScope 

pub struct WeakScope { /* private fields */ }
Available on crate feature std only.
Expand description

A Scope handle that observes without holding the drain open.

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impl WeakScope

pub const fn detached() -> WeakScope

The weak handle of Scope::detached: work outside any shutdown, never cancelled.

pub fn try_hold(&self) -> Result<Scope, ScopeClosed>

Hold the scope, as WeakScope::into_scope does, keeping this handle: the one fallible step before starting work in it.

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ScopeClosed once the scope is closed.

pub fn into_scope(self) -> Option<Scope>

Hold the scope again: refused once it is closed, and once it has no holder left while cancelled (that closes it). A scope made by Scope::child_of is held again only as a whole.

pub fn cancel(&self, cause: Cause)

See Scope::cancel.

pub fn abort(&self, cause: Cause)

See Scope::abort.

pub fn cancelled(&self) -> Cancelled ⓘ

See Scope::cancelled.

pub fn aborted(&self) -> Aborted ⓘ

See Scope::aborted.

pub fn drained(&self) -> Drained ⓘ

See Scope::drained.

pub fn is_cancelled(&self) -> bool

See Scope::is_cancelled.

pub fn is_aborted(&self) -> bool

See Scope::is_aborted.

pub fn cause(&self) -> Option<Cause>

See Scope::cause.

pub fn abort_cause(&self) -> Option<Cause>

See Scope::abort_cause.

pub const fn is_detached(&self) -> bool

See Scope::is_detached.

Trait Implementations§

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impl Clone for WeakScope

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fn clone(&self) -> WeakScope

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for WeakScope

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

Formats the value using the given formatter. Read more
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impl Default for WeakScope

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fn default() -> WeakScope

Returns the “default value” for a type. Read more
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impl From<&Scope> for WeakScope

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fn from(scope: &Scope) -> WeakScope

Converts to this type from the input type.
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impl From<&WeakScope> for WeakScope

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fn from(scope: &WeakScope) -> WeakScope

Converts to this type from the input type.
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impl From<Scope> for WeakScope

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fn from(scope: Scope) -> WeakScope

Gives up the hold of scope.

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impl<T> Any for T
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fn type_id(&self) -> TypeId

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impl<'a, T, E> AsTaggedExplicit<'a, E> for T
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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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impl<T> Borrow<T> for T
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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
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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
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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> FutureExt for T

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fn with_context(self, otel_cx: Context) -> WithContext<Self> ⓘ

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
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fn with_current_context(self) -> WithContext<Self> ⓘ

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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 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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fn into_request(self) -> Request<T>

Wrap the input message T in a rama_grpc::Request
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fn named_layer<S>(&self, service: S) -> Layered<<L as Layer<S>>::Service, S>
where L: Layer<S>,

Applies the layer to a service and wraps it in Layered.
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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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where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

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fn rama_from(value: T) -> U

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impl<T, U, CrateMarker> RamaInto<U, CrateMarker> for T
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fn rama_into(self) -> U

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

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

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fn rama_try_from(value: T) -> Result<U, <U as RamaTryFrom<T>>::Error>

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impl<T, U, CrateMarker> RamaTryInto<U, CrateMarker> for T
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type Error = <U as RamaTryFrom<T, CrateMarker>>::Error

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impl<T> Same for T

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type Output = T

Should always be Self
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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut 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, !>

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

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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fn vzip(self) -> V

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impl<V, F> ValueFormatter<&V> for F
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const SHAPE: FieldShape<'static>

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The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &&V)

Write value to writer
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impl<V, F> ValueFormatter<Arc<V>> for F
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const SHAPE: FieldShape<'static>

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The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &Arc<V>)

Write value to writer
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impl<V, F> ValueFormatter<Box<V>> for F
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const SHAPE: FieldShape<'static>

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The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &Box<V>)

Write value to writer
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impl<V, F> ValueFormatter<Cow<'_, V>> for F
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const SHAPE: FieldShape<'static>

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The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &Cow<'_, V>)

Write value to writer
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impl<V, F> ValueFormatter<Option<V>> for F
where F: ValueFormatter<V> + ?Sized,

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const SHAPE: FieldShape<'static>

Available on non-metrique_require_explicit_impls only.
The shape of values produced by this formatter. Read more
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fn format_value(writer: impl ValueWriter, value: &Option<V>)

Write value to writer
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