pub struct SlotSequentialStream { /* private fields */ }Expand description
A streams that yeild FumaroleEvent in slot order, meaning that while a slot is active, only events from that
slot will be yielded, and once the slot ends, events from the next slot will be yielded, and so on. So while a slot
has not ended, event’s from that slot won’t be interleaved with events from other slots.
This is usefulfor consumers that want to process events in slot order and don’t care about processing events from multiple slots concurrently.
If fumarole download two slots in parallel, (when replaying from the past), say the slot 1, 2. Then whatever slot gives yield the first event, say slot 2, will be the only slot that is yielded until it ends, and then events from slot 1 will be yielded.
Implementations§
Source§impl SlotSequentialStream
impl SlotSequentialStream
Sourcepub fn commit(&mut self)
pub fn commit(&mut self)
See FumaroleStream::commit for more details.
Trait Implementations§
Source§impl Stream for SlotSequentialStream
Stream adapter that enforces slot-local sequential emission.
impl Stream for SlotSequentialStream
Stream adapter that enforces slot-local sequential emission.
Given an input stream of FumaroleEvent, this adapter ensures that regular
data events from one active slot are emitted contiguously until that slot
ends. Data from other slots is buffered until the active slot emits
FumaroleEvent::SlotEnded.
Slot status and BlockMeta updates are intentionally passed through
immediately, because runtime semantics guarantee they are emitted after block
payload data for the slot.
§Generic Parameter
S is any stream yielding Result<FumaroleEvent, FumaroleSubscribeError>.
This allows composing adapters on top of FumaroleStream or custom sources.
§Use Cases
Useful for consumers that want deterministic per-slot processing without interleaving payload updates from concurrent slot downloads.
Source§type Item = Result<FumaroleEvent, FumaroleSubscribeError>
type Item = Result<FumaroleEvent, FumaroleSubscribeError>
Auto Trait Implementations§
impl Freeze for SlotSequentialStream
impl RefUnwindSafe for SlotSequentialStream
impl Send for SlotSequentialStream
impl Sync for SlotSequentialStream
impl Unpin for SlotSequentialStream
impl UnsafeUnpin for SlotSequentialStream
impl UnwindSafe for SlotSequentialStream
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