Enum BackendFailureKind 

#[non_exhaustive]
pub enum BackendFailureKind {
    Transient,
    Throttled,
    Permanent,
}

Retry-policy classification for Error::Backend.

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.

Transient

Temporary failure; retry with exponential backoff.

Throttled

Backend is rate-limiting the caller. Retry honoring any Retry-After signal surfaced in Backend.message.

Permanent

Permanent failure; retry will not help without external action.

Trait Implementations

impl Clone for BackendFailureKind

fn clone(&self) -> BackendFailureKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BackendFailureKind

impl Debug for BackendFailureKind

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

Formats the value using the given formatter.

impl Eq for BackendFailureKind

impl PartialEq for BackendFailureKind

fn eq(&self, other: &BackendFailureKind) -> 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 StructuralPartialEq for BackendFailureKind