Struct RetryPolicy 

pub struct RetryPolicy {
    pub max_retries: u32,
    pub base: Duration,
    pub max_delay: Duration,
    pub jitter: f64,
}

Retry configuration. Governs the exponential-backoff schedule and the jitter distribution applied to each retry delay.

Fields

max_retries: u32

Maximum number of retry attempts after the initial request. 0 disables retries entirely.

base: Duration

Base for the exponential backoff. Delay for attempt n is base * 2^n, capped at Self::max_delay, then modulated by jitter.

max_delay: Duration

Absolute upper bound on the pre-jitter delay. Prevents runaway exponentials on high retry counts.

jitter: f64

Fraction of the computed delay applied as full-jitter randomness. Value 0.0..=1.0. 0.0 means no jitter; 1.0 means the delay can be anywhere in [0, delay].

Implementations

impl RetryPolicy

pub const fn default_full_jitter() -> Self

AWS Architecture Blog’s “full jitter” default: 200 ms base, 30 s cap, 100 % jitter, 3 retries.

pub fn delay(&self, attempt: u32, rng_0_to_1: f64) -> Duration

Compute the delay for a given attempt (0-indexed).

attempt = 0 is the first retry (after the initial request failed). Delay grows as base * 2^attempt, capped at max_delay, then modulated by the jitter fraction using a caller-supplied random source in [0.0, 1.0).

Trait Implementations

impl Clone for RetryPolicy

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RetryPolicy

impl Debug for RetryPolicy

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

Formats the value using the given formatter.

impl Default for RetryPolicy

fn default() -> Self

Returns the “default value” for a type.