Enum BackoffStrategy 

pub enum BackoffStrategy {
    Fixed {
        base: Duration,
    },
    Exponential {
        base: Duration,
        max_delay: Duration,
    },
    DecorrelatedJitter {
        base: Duration,
        max_delay: Duration,
    },
}

Backoff strategy used by RetryPolicy to compute inter-attempt delays.

Variant	Description
Fixed	Always wait the same base duration
Exponential	base * 2^attempt (capped at max_delay)
DecorrelatedJitter	Jittered delay in [base, prev * 3] (AWS algorithm)

Variants

Fixed

Return base unconditionally on every attempt.

Fields

base: Duration

Constant delay between attempts.

Exponential

Double the delay on each attempt, capping at max_delay.

delay(attempt) = min(base * 2^attempt, max_delay)

Fields

base: Duration

Initial delay (attempt 0).

max_delay: Duration

Upper bound for computed delays.

DecorrelatedJitter

Decorrelated jitter as described by AWS: delay = random_between(base, prev_delay * 3).

RetryPolicy::next_delay uses a deterministic approximation (base + (prev_delay * 3 - base) / 2) so that the type needs no random-number-generator dependency. Callers that want true randomness should implement jitter on top using the returned duration as an upper bound.

Fields

base: Duration

Minimum delay floor.

max_delay: Duration

Upper bound for any single delay.

Trait Implementations

impl Clone for BackoffStrategy

fn clone(&self) -> BackoffStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BackoffStrategy

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BackoffStrategy

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for BackoffStrategy

fn eq(&self, other: &BackoffStrategy) -> 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 Serialize for BackoffStrategy

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for BackoffStrategy

impl StructuralPartialEq for BackoffStrategy