Struct ExponentialBackoff 

pub struct ExponentialBackoff { /* private fields */ }

Exponential backoff: delay doubles with each attempt, capped at a maximum.

The delay for attempt N is min(base * 2^(N-1), max).

Implementations

impl ExponentialBackoff

pub fn new(base: Duration, max: Duration) -> Result<Self, BackoffConfigError>

Creates a new exponential backoff strategy.

Errors

Returns BackoffConfigError::BaseExceedsMax if base exceeds max.

pub fn base(&self) -> Duration

Returns the base delay.

pub fn max(&self) -> Duration

Returns the maximum delay cap.

Trait Implementations

impl BackoffStrategy for ExponentialBackoff

fn delay_for_attempt(&self, attempt_number: u32) -> Duration

Returns the delay before the given attempt should be retried.

impl Clone for ExponentialBackoff

fn clone(&self) -> ExponentialBackoff

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExponentialBackoff

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

Formats the value using the given formatter.

impl PartialEq for ExponentialBackoff

fn eq(&self, other: &ExponentialBackoff) -> 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 ExponentialBackoff

impl Eq for ExponentialBackoff

impl StructuralPartialEq for ExponentialBackoff