Struct ClientLoadSignal 

pub struct ClientLoadSignal { /* private fields */ }

A manually-fed signal representing downstream client throttling.

Use ClientLoadSignal::instrument_storage to automatically record successful storage operations and backend rate-limit errors. Callers can also feed observations directly through ClientLoadSignalHandle.

Implementations

impl ClientLoadSignal

pub fn new() -> Self

Creates an empty client load signal.

pub fn handle(&self) -> ClientLoadSignalHandle

Returns a cloneable handle for recording client health observations.

pub fn instrument_storage( &self, client: Arc<dyn StorageClient>, ) -> Arc<dyn StorageClient>

Wraps a storage client so its successful and rate-limited operations feed this signal.

Trait Implementations

impl Default for ClientLoadSignal

fn default() -> Self

Returns the “default value” for a type.

impl LoadSignal for ClientLoadSignal

fn name(&self) -> &str

Returns the stable name of this signal.

fn overload_threshold(&self) -> f32

Returns the utilization threshold at which this signal is overloaded.

fn sample(&self, window: Duration) -> Vec<LoadSnapshot>

Returns observations from the requested recent window.

fn start<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<(), CrawlError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Starts any sampling work required by this signal.

fn stop<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<(), CrawlError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Stops any sampling work required by this signal.