Crate kona_engine

Expand description

§`kona-engine`

An extensible implementation of the OP Stack rollup node engine client.

BuildTask: The BuildTask is responsible for building new blocks and importing them via the engine API.
ConsolidateTask: The ConsolidateTask attempts to consolidate the engine state using the specified payload attributes and the oldest unsafe head.
Engine: The Engine task queue.
EngineClient: An external engine api client
EngineState: The chain state viewed by the engine controller.
EngineSyncState: The sync state of the engine.
EngineSyncStateUpdate: Specifies how to update the sync state of the engine.
FinalizeTask: The FinalizeTask fetches the L2BlockInfo at block_number, updates the EngineState, and dispatches a forkchoice update to finalize the block.
ForkchoiceTask: The ForkchoiceTask executes an engine_forkchoiceUpdated call with the current EngineState’s forkchoice, and no payload attributes.
InsertTask: The task to insert a payload into the execution engine.
Metrics: Container for metrics.

AttributesMatch: Represents whether the attributes match the block or not.
AttributesMismatch: An enum over the type of mismatch between OpAttributesWithParent and a Block.
BuildTaskError: An error that occurs when running the crate::ForkchoiceTask.
ConsolidateTaskError: An error that occurs when running the crate::ConsolidateTask.
EngineClientError: An error that occurred in the EngineClient.
EngineForkchoiceVersion: The method version for the engine_forkchoiceUpdated api.
EngineGetPayloadVersion: The method version for the engine_getPayload api.
EngineKind: The engine kind identifies the engine client’s kind, used to control the behavior of optimism in different engine clients.
EngineNewPayloadVersion: The method version for the engine_newPayload api.
EngineQueries: Returns the full engine state.
EngineQueriesError: An error that can occur when querying the engine.
EngineResetError: An error occurred while attempting to reset the Engine.
EngineTask: Tasks that may be inserted into and executed by the Engine.
EngineTaskErrorSeverity: The severity of an engine task error.
EngineTaskErrors: An error that may occur during an EngineTask’s execution.
FinalizeTaskError: An error that occurs when running the crate::FinalizeTask.
ForkchoiceTaskError: An error that occurs when running the crate::ForkchoiceTask.
InsertTaskError: An error that occurs when running the InsertTask.