Struct RequestReadContext 

pub struct RequestReadContext { /* private fields */ }

Opaque snapshot of the current request read context.

Backend implementations capture this once before crossing into blocking work so nested scopes and spawned children share one absolute deadline.

Implementations

impl RequestReadContext

pub fn scope_store_acquisition<T>( self, operation: &'static str, work: impl FnOnce() -> T, ) -> T

Opt one blocking store-constructor call into request-aware admission. Ordinary accessors under a read context remain outside this scope. The previous context is restored even if the constructor panics.

pub fn store_acquisition_operation(&self) -> Option<&'static str>

The explicitly scoped constructor operation, absent for ordinary callers.

pub fn blocking_stop_reason(&self) -> Option<RequestReadStopReason>

Observe cancellation and the original wall-clock deadline in blocking work.

pub fn deadline(&self) -> Option<RequestReadDeadline>

Return the request’s absolute deadline, when one is installed.

pub fn stop_reason(&self) -> Option<RequestReadStopReason>

Return the currently observed stop cause without waiting.

pub async fn wait_for_stop(self) -> RequestReadStopReason

Wait until one merged cancellation source fires or the deadline elapses.

Trait Implementations

impl Clone for RequestReadContext

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for RequestReadContext

fn default() -> Self

Returns the “default value” for a type.