reth_engine_tree::engine

Struct EngineApiRequestHandler

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pub struct EngineApiRequestHandler<Request, N: NodePrimitives> { /* private fields */ }
Expand description

An EngineRequestHandler that processes engine API requests by delegating to an execution task.

This type is responsible for advancing the chain during live sync (following the tip of the chain).

It advances the chain based on received engine API requests by delegating them to the tree executor.

There are two types of requests that can be processed:

  • on_new_payload: Executes the payload and inserts it into the tree. These are allowed to be processed concurrently.
  • on_forkchoice_updated: Updates the fork choice based on the new head. These require write access to the database and are skipped if the handler can’t acquire exclusive access to the database.

In case required blocks are missing, the handler will request them from the network, by emitting a download request upstream.

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impl<Request, N: NodePrimitives> EngineApiRequestHandler<Request, N>

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pub const fn new( to_tree: Sender<FromEngine<Request, N::Block>>, from_tree: UnboundedReceiver<EngineApiEvent<N>>, ) -> Self

Creates a new EngineApiRequestHandler.

Trait Implementations§

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impl<Request: Debug, N: Debug + NodePrimitives> Debug for EngineApiRequestHandler<Request, N>
where N::Block: Debug,

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

Formats the value using the given formatter. Read more
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impl<Request, N: NodePrimitives> EngineRequestHandler for EngineApiRequestHandler<Request, N>
where Request: Send,

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type Event = BeaconConsensusEngineEvent<N>

Event type this handler can emit
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type Request = Request

The request type this handler can process.
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type Block = <N as NodePrimitives>::Block

Type of the block sent in FromEngine::DownloadedBlocks variant.
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fn on_event(&mut self, event: FromEngine<Self::Request, Self::Block>)

Informs the handler about an event from the EngineHandler.
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fn poll( &mut self, cx: &mut Context<'_>, ) -> Poll<RequestHandlerEvent<Self::Event>>

Advances the handler.

Auto Trait Implementations§

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impl<Request, N> Freeze for EngineApiRequestHandler<Request, N>

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impl<Request, N> RefUnwindSafe for EngineApiRequestHandler<Request, N>

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impl<Request, N> Send for EngineApiRequestHandler<Request, N>
where Request: Send,

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impl<Request, N> Sync for EngineApiRequestHandler<Request, N>
where Request: Send,

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impl<Request, N> Unpin for EngineApiRequestHandler<Request, N>

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impl<Request, N> UnwindSafe for EngineApiRequestHandler<Request, N>

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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes