Struct SourceQueue 

pub struct SourceQueue<T> { /* private fields */ }

Materialized handle of Source::queue: a bounded queue with a configurable OverflowStrategy. Under Backpressure, maxConcurrentOffers is 1 — offer blocks until buffer space is free and a second concurrent offer errors.

Implementations

impl<T: Send + 'static> SourceQueue<T>

pub fn watch_completion(self) -> StreamCompletion<NotUsed>

Take the one-shot completion handle for this queue (resolves when the stream ends). Only the original handle holds it; a cloned SourceQueue returns an error completion.

pub fn offer(&self, elem: T) -> StreamResult<QueueOfferResult>

Offer one element, applying the configured OverflowStrategy. Returns Err only when a second concurrent offer races a pending Backpressure offer; otherwise the outcome is in the QueueOfferResult.

pub fn complete(&self)

Complete the stream once buffered/pending elements drain (idempotent).

pub fn fail(&self, error: StreamError)

Fail the stream with error (first terminal signal wins).

Trait Implementations

impl<T> Clone for SourceQueue<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Drop for SourceQueue<T>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.