Struct Backoff 

pub struct Backoff {
    pub base: Duration,
    pub max: Duration,
    pub multiplier: u32,
    pub jitter: f64,
}

Exponential backoff with a cap and jitter.

Fields

base: Duration

Delay after the first failure.

max: Duration

Upper bound, however many failures accumulate.

multiplier: u32

Growth per failure.

jitter: f64

Fraction of the delay that is randomised, 0.0 to 1.0.

Implementations

impl Backoff

pub fn delay_for(&self, failures: u32, random: f64) -> Duration

Delay after failures consecutive failures.

random is a value in 0.0..=1.0 supplied by the caller, which keeps this a pure function — jitter is otherwise untestable.

Trait Implementations

impl Clone for Backoff

fn clone(&self) -> Backoff

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Backoff

impl Debug for Backoff

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

Formats the value using the given formatter.

impl Default for Backoff

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Backoff

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Backoff