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Population

Struct Population 

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pub struct Population<'cache> { /* private fields */ }
Expand description

Exclusive population capability for one build identifier.

Dropping the guard releases its process lock. A staging file is not created until Population::into_writer consumes this value.

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impl<'cache> Population<'cache>

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pub fn into_writer(self) -> Result<PopulationWriter<'cache>>

Creates a staged GSYM file and transitions to its write-only owner.

The returned writer owns this population capability. Writers can stream directly into it without a second full-size allocation or copy.

§Errors

Returns an error if the temporary file cannot be created.

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pub fn record_failure_for( self, kind: FailureKind, lifetime: Duration, ) -> Result<CachedFailure>

Atomically records an expiring population failure.

Consuming the population guard ensures no successful publisher for the same build identifier races this record. Applications should use a short lifetime for missing inputs and transient resource failures. The lifetime is rounded up to whole Unix seconds and must be nonzero and at most MAX_FAILURE_TTL.

Returns the cached failure, including its rounded expiration time.

§Errors

Returns an error if lifetime is zero, exceeds MAX_FAILURE_TTL, cannot be represented, or the record cannot be published.

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impl Debug for Population<'_>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'cache> Freeze for Population<'cache>

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impl<'cache> RefUnwindSafe for Population<'cache>

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impl<'cache> Send for Population<'cache>

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impl<'cache> Sync for Population<'cache>

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impl<'cache> Unpin for Population<'cache>

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impl<'cache> UnsafeUnpin for Population<'cache>

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impl<'cache> UnwindSafe for Population<'cache>

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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> 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<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> PolicyExt for T
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>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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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>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. 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 = 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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more