Enum BackoffError 

#[non_exhaustive]
pub enum BackoffError {
    InvalidFactor(f64),
    FirstExceedsMax {
        first: Duration,
        max: Duration,
    },
}

Error returned by BackoffPolicy::new when parameters violate the policy invariants.

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.

InvalidFactor(f64)

factor was not finite or was below 1.0 (a backoff factor must not shrink delays).

FirstExceedsMax

first exceeded max (the initial delay cannot be larger than the cap).

Fields

first: Duration

The offending initial delay.

max: Duration

The configured cap.

Trait Implementations

impl Clone for BackoffError

fn clone(&self) -> BackoffError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BackoffError

impl Debug for BackoffError

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

Formats the value using the given formatter.

impl Display for BackoffError

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

Formats the value using the given formatter.

impl Error for BackoffError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for BackoffError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BackoffError