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Locality

laminar_core::state::vnode

Struct Locality 

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pub struct Locality { /* private fields */ }
Expand description

A node’s failure-domain locality: ordered tier values, coarsest first (e.g. ["us-east-1", "us-east-1a", "r17"]). Parsed from the node’s failure_domain gossip string.

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impl Locality

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pub fn new(tiers: Vec<String>) -> Self

Build from ordered tier values, coarsest first.

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pub fn parse(s: &str) -> Self

Parse "region=us-east-1;zone=us-east-1a;rack=r17" (or a bare label "rack17") into its tier values. Tier names are ignored.

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pub fn domain_at(&self, tier: usize) -> String

Failure-domain key at tier: the ;-joined value prefix 0..=tier. Two nodes share a domain iff equal; an unlabeled node yields the empty key.

Trait Implementations§

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impl Clone for Locality

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fn clone(&self) -> Locality

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 Default for Locality

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fn default() -> Locality

Returns the “default value” for a type. Read more
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impl Eq for Locality

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impl PartialEq for Locality

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fn eq(&self, other: &Locality) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for Locality

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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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> ArchivePointee for T

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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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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
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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> 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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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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fn equivalent(&self, key: &K) -> bool

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fn from(t: T) -> T

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Converts to this type from a reference to the input type.
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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).

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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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Wrap the input message T in a tonic::Request
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unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool

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Writes data to out indicating that a T is niched.
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Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
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The resulting type after obtaining ownership.
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