Trait parachains_relay::parachains_loop::TargetClient

pub trait TargetClient<P: ParachainsPipeline>: RelayClient {
    type TransactionTracker: TransactionTracker<HeaderId = HeaderIdOf<P::TargetChain>>;

    // Required methods
    fn best_block<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<HeaderIdOf<P::TargetChain>, Self::Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn best_finalized_source_relay_chain_block<'life0, 'life1, 'async_trait>(
        &'life0 self,
        at_block: &'life1 HeaderIdOf<P::TargetChain>,
    ) -> Pin<Box<dyn Future<Output = Result<HeaderIdOf<P::SourceRelayChain>, Self::Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn free_source_relay_headers_interval<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<Option<BlockNumberOf<P::SourceRelayChain>>, Self::Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn parachain_head<'life0, 'async_trait>(
        &'life0 self,
        at_block: HeaderIdOf<P::TargetChain>,
    ) -> Pin<Box<dyn Future<Output = Result<Option<(HeaderIdOf<P::SourceRelayChain>, HeaderIdOf<P::SourceParachain>)>, Self::Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn submit_parachain_head_proof<'life0, 'async_trait>(
        &'life0 self,
        at_source_block: HeaderIdOf<P::SourceRelayChain>,
        para_head_hash: ParaHash,
        proof: ParaHeadsProof,
        is_free_execution_expected: bool,
    ) -> Pin<Box<dyn Future<Output = Result<Self::TransactionTracker, Self::Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}

Target client used in parachain heads synchronization loop.

Required Associated Types

type TransactionTracker: TransactionTracker<HeaderId = HeaderIdOf<P::TargetChain>>

Transaction tracker to track submitted transactions.

Required Methods

fn best_block<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<HeaderIdOf<P::TargetChain>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Get best block id.

fn best_finalized_source_relay_chain_block<'life0, 'life1, 'async_trait>( &'life0 self, at_block: &'life1 HeaderIdOf<P::TargetChain>, ) -> Pin<Box<dyn Future<Output = Result<HeaderIdOf<P::SourceRelayChain>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Get best finalized source relay chain block id. If free_source_relay_headers_interval is Some(_), the returned

fn free_source_relay_headers_interval<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Option<BlockNumberOf<P::SourceRelayChain>>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Get free source relay headers submission interval, if it is configured in the target runtime. We assume that the target chain will accept parachain header, proved at such relay header for free.

fn parachain_head<'life0, 'async_trait>( &'life0 self, at_block: HeaderIdOf<P::TargetChain>, ) -> Pin<Box<dyn Future<Output = Result<Option<(HeaderIdOf<P::SourceRelayChain>, HeaderIdOf<P::SourceParachain>)>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Get parachain head id at given block.

fn submit_parachain_head_proof<'life0, 'async_trait>( &'life0 self, at_source_block: HeaderIdOf<P::SourceRelayChain>, para_head_hash: ParaHash, proof: ParaHeadsProof, is_free_execution_expected: bool, ) -> Pin<Box<dyn Future<Output = Result<Self::TransactionTracker, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Submit parachain heads proof.

Object Safety

This trait is not object safe.

Implementors