Struct Shadower 

pub struct Shadower { /* private fields */ }

The shadower. Cheap to clone — both backends are Arc-shaped.

Implementations

impl Shadower

pub fn new( primary: Arc<dyn Backend>, shadow: Arc<dyn Backend>, config: ShadowConfig, ) -> Self

Build a shadower with the default ring-buffer-backed DivergenceLog.

pub fn with_log(self, log: Arc<DivergenceLog>) -> Self

Override the log (e.g. with a custom capacity).

pub fn divergences(&self) -> Vec<DivergenceEntry>

Snapshot the divergence log.

pub async fn call(&self, input: &[u8]) -> Result<ShadowOutcome, ShadowError>

Issue a call. Both legs run concurrently. The shadow’s deadline is the ShadowConfig::shadow_timeout; expiry never blocks the primary.

pub fn divergence_count(&self) -> usize

Internal — count entries (used by tests).

Trait Implementations

impl Clone for Shadower

fn clone(&self) -> Shadower

Returns a duplicate of the value.

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

Performs copy-assignment from source.