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BridgeMessage

laminar_core::compiler::pipeline_bridge

Enum BridgeMessage 

Source 
pub enum BridgeMessage {
    Event {
        row_data: SmallVec<[u8; 256]>,
        event_time: i64,
        key_hash: u64,
    },
    Watermark {
        timestamp: i64,
    },
    CheckpointBarrier {
        epoch: u64,
    },
    Eof,
}
Expand description

A message sent from Ring 0 through the SPSC queue to Ring 1.

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Event

A processed event row with metadata.

Fields

§row_data: SmallVec<[u8; 256]>

Serialized row bytes (inline for rows <= 256 bytes).

§event_time: i64

Event timestamp (microseconds since epoch).

§key_hash: u64

Pre-computed key hash for partitioned operators.

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Watermark

Watermark advance notification.

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§timestamp: i64

The new watermark timestamp.

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CheckpointBarrier

Checkpoint barrier — Ring 1 must flush and persist state.

Fields

§epoch: u64

The epoch number for this checkpoint.

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Eof

End of stream — no more messages will follow.

Trait Implementations§

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impl Debug for BridgeMessage

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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type ArchivedMetadata = ()

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