Crate kona_node_service

kona-node-service

An implementation of the OP Stack RollupNode service.

Structs

ConductorClient

A client for communicating with the conductor service via RPC

DelayedL1OriginSelectorProvider

A wrapper around the RootProvider that delays the view of the L1 chain by a configurable amount of blocks.

DerivationActor

The NodeActor for the derivation sub-routine.

DerivationBuilder

The configuration necessary to build the derivation actor.

DerivationContext

The communication context used by the derivation actor.

DerivationInboundChannels

The inbound channels for the derivation actor. These channels are used to send messages to the derivation actor by other actors.

DerivationState

The state for the derivation actor.

EngineActor

The EngineActor is responsible for managing the operations sent to the execution layer’s Engine API. To accomplish this, it uses the Engine task queue to order Engine API interactions based off of the Ord implementation of EngineTask.

EngineBuilder

Configuration for the Engine Actor.

EngineContext

The communication context used by the engine actor.

EngineInboundData

The outbound data for the EngineActor.

L1OriginSelector

The L1OriginSelector is responsible for selecting the L1 origin block based on the current L2 unsafe head’s sequence epoch.

L1WatcherRpc

An L1 chain watcher that checks for L1 block updates over RPC.

L1WatcherRpcContext

The communication context used by the L1 watcher actor.

L1WatcherRpcInboundChannels

The inbound channels for the L1 watcher actor.

L1WatcherRpcState

The configuration for the L1 watcher actor.

L2Finalizer

The L2Finalizer is responsible for finalizing L2 blocks derived from finalized L1 blocks. It maintains a queue of derived L2 blocks that are awaiting finalization, and finalizes them as new finalized L1 blocks are received.

Metrics

Container for metrics.

NetworkActor

The network actor handles two core networking components of the rollup node:

NetworkBuilder

Constructs a NetworkDriver for the OP Stack Consensus Layer.

NetworkConfig

Configuration for kona’s P2P stack.

NetworkContext

The communication context used by the network actor.

NetworkDriver

A network driver. This is the driver that is used to start the network.

NetworkHandler

A network handler used to communicate with the network once it is started.

NetworkInboundData

The inbound data for the network actor.

RollupNode

The standard implementation of the RollupNode service, using the governance approved OP Stack configuration of components.

RollupNodeBuilder

The RollupNodeBuilder is used to construct a RollupNode service.

RpcActor

An actor that handles the RPC server for the rollup node.

RpcContext

The communication context used by the RPC actor.

SequencerActor

The SequencerActor is responsible for building L2 blocks on top of the current unsafe head and scheduling them to be signed and gossipped by the P2P layer, extending the L2 chain with new blocks.

SequencerBuilder

The builder for the SequencerActor.

SequencerConfig

Configuration for the SequencerActor.

SequencerContext

The communication context used by the SequencerActor.

SequencerInboundData

The inbound channels for the SequencerActor. These channels are used by external actors to send messages to the sequencer actor.

Enums

ConductorError

Error type for conductor operations

DerivationError

An error from the DerivationActor.

EngineError

An error from the EngineActor.

InboundDerivationMessage

Messages that the DerivationActor can receive from other actors.

InteropMode

The InteropMode enum represents how the node works with interop.

L1OriginSelectorError

An error produced by the L1OriginSelector.

L1WatcherRpcError

The error type for the L1WatcherRpc.

NetworkActorError

An error from the network actor.

NetworkBuilderError

An error from the crate::NetworkBuilder.

NetworkDriverError

An error from the NetworkDriver.

NodeMode

The NodeMode enum represents the modes of operation for the RollupNodeService.

RpcActorError

An error returned by the RpcActor.

SequencerActorError

An error produced by the SequencerActor.

Traits

AttributesBuilderConfig

A trait for building AttributesBuilders.

CancellableContext

The communication context used by the actor.

L1OriginSelectorProvider

L1 BlockInfo provider interface for the L1OriginSelector.

NodeActor

The NodeActor is an actor-like service for the node.

PipelineBuilder

A trait for building derivation pipelines.

RollupNodeService

The RollupNodeService trait defines the common interface for running a rollup node.