Struct penumbra_app::server::mempool::Mempool

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pub struct Mempool { /* private fields */ }
Expand description

When using ABCI, we can’t control block proposal directly, so we could potentially end up creating blocks with mutually incompatible transactions. While we’d reject one of them during execution, it’s nicer to try to filter them out at the mempool stage. Currently, the way we do this is by having the mempool worker maintain an ephemeral fork of the entire execution state, and execute incoming transactions against the fork. This prevents conflicting transactions in the local mempool, since we’ll update the fork, then reject the second transaction against the forked state. When we learn a new state has been committed, we discard and recreate the ephemeral fork.

After switching to ABCI++, we can eliminate this mechanism and just build blocks we want.

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impl Mempool

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pub async fn new( storage: Storage, queue: Receiver<Message<Request, Response, BoxError>> ) -> Result<Self>

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pub async fn check_tx(&mut self, req: Request) -> Result<Response, BoxError>

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pub async fn run(self) -> Result<(), BoxError>

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