Struct FallbackOptions 

pub struct FallbackOptions {
    pub retry: RetryPolicy,
    pub allow_provider_fallback: bool,
    pub sleeper: Arc<dyn Sleeper>,
    pub clock: Arc<dyn Clock>,
}

Knobs that are not the stage.

The stage is deliberately absent: it is a positional argument of execute_with_fallback so it cannot be defaulted away.

Fields

retry: RetryPolicy

How hard to try each candidate.

allow_provider_fallback: bool

Whether the walk may move past the first candidate at all. Setting it to false restricts a stage to one profile without changing the router’s output.

sleeper: Arc<dyn Sleeper>

Who waits between attempts.

clock: Arc<dyn Clock>

Where attempt latencies come from.

Implementations

impl FallbackOptions

pub fn new() -> Self

The default policy, sleeping on the Tokio timer and timing on the wall clock.

pub fn with_retry(self, retry: RetryPolicy) -> Self

Sets the retry policy.

pub fn without_provider_fallback(self) -> Self

Restricts the stage to the first candidate.

pub fn with_sleeper<S: Sleeper + 'static>(self, sleeper: Arc<S>) -> Self

Injects a sleeper.

pub fn with_clock<C: Clock + 'static>(self, clock: Arc<C>) -> Self

Injects a clock.

Trait Implementations

impl Clone for FallbackOptions

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FallbackOptions

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

Formats the value using the given formatter.

impl Default for FallbackOptions

fn default() -> Self

Returns the “default value” for a type.