Enum CircuitState 

#[non_exhaustive]
pub enum CircuitState {
    Closed,
    Open,
    HalfOpen,
}

Represents the current state of a circuit breaker.

Marked #[non_exhaustive] so future minor releases can add new states (e.g. Disabled, ForcedOpen) without breaking callers that exhaustively match on the enum.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Closed

Circuit is closed and operations are allowed to execute

Open

Circuit is open and operations will fail fast

HalfOpen

Circuit is partially open, allowing a test request

Trait Implementations

impl Clone for CircuitState

fn clone(&self) -> CircuitState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CircuitState

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

Formats the value using the given formatter.

impl PartialEq for CircuitState

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl Copy for CircuitState

impl StructuralPartialEq for CircuitState