Struct StreamPolicy 

pub struct StreamPolicy { /* private fields */ }

Stream resequencing policy.

Uses a BTreeMap<u64, Exchange> as a priority queue keyed by sequence number. Tracks next_expected and emits the contiguous run whenever the expected sequence arrives. Gap timers fire when a missing sequence is not received within gap_timeout.

Implementations

impl StreamPolicy

pub fn new_cyclic( sequence_expr: Arc<dyn Expression>, capacity: usize, gap_timeout_ms: u64, on_gap: GapPolicy, on_capacity_exceeded: CapacityPolicy, dedup: bool, ) -> Arc<Self>

Create a new Arc<StreamPolicy> using Arc::new_cyclic.

Trait Implementations

impl ResequencePolicy for StreamPolicy

fn accept<'life0, 'async_trait>( &'life0 self, input: Exchange, ) -> Pin<Box<dyn Future<Output = Vec<Exchange>> + Send + 'async_trait>>

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

Accept an input; return the list of now-ready exchanges (in emit order).

fn flush<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Vec<Exchange>> + Send + 'async_trait>>

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

Flush all buffered state (shutdown). Return any remaining, ordered.

fn name(&self) -> &'static str

Stable name for logging / diagnostics.

fn set_timeout_tx(&self, tx: Sender<Exchange>)

Set the driver channel for timeout-triggered emissions. Default is a no-op. BatchPolicy overrides this to receive the channel that feeds the post-driver.