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Struct substrate_relay_helper::finality_base::engine::Grandpa

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pub struct Grandpa<C>(/* private fields */);
Expand description

GRANDPA finality engine.

Trait Implementations§

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impl<C: ChainWithGrandpa> Engine<C> for Grandpa<C>

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fn prepare_initialization_data<'async_trait>( source_client: impl 'async_trait + Client<C>, ) -> Pin<Box<dyn Future<Output = Result<Self::InitializationData, Error<HashOf<C>, BlockNumberOf<C>>>> + Send + 'async_trait>>
where Self: 'async_trait,

Prepare initialization data for the GRANDPA verifier pallet.

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const ID: ConsensusEngineId = GRANDPA_ENGINE_ID

Unique consensus engine identifier.
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type ConsensusLogReader = GrandpaConsensusLogReader<<<C as Chain>::Header as Header>::Number>

A reader that can extract the consensus log from the header digest and interpret it.
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type FinalityProof = GrandpaJustification<<C as Chain>::Header>

Type of finality proofs, used by consensus engine.
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type FinalityVerificationContext = JustificationVerificationContext

The context needed for verifying finality proofs.
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type EquivocationProof = EquivocationProof<<C as Chain>::Hash, <C as Chain>::BlockNumber>

The type of the equivocation proof used by the consensus engine.
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type EquivocationsFinder = GrandpaEquivocationsFinder<C>

The equivocations finder.
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type KeyOwnerProof = <C as ChainWithGrandpa>::KeyOwnerProof

The type of the key owner proof used by the consensus engine.
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type InitializationData = InitializationData<<C as Chain>::Header>

Type of bridge pallet initialization data.
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type OperatingMode = BasicOperatingMode

Type of bridge pallet operating mode.
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fn is_initialized_key() -> StorageKey

Returns storage at the bridged (target) chain that corresponds to some value that is missing from the storage until bridge pallet is initialized. Read more
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fn pallet_operating_mode_key() -> StorageKey

Returns storage key at the bridged (target) chain that corresponds to the variable that holds the operating mode of the pallet.
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fn source_finality_proofs<'life0, 'async_trait>( client: &'life0 (impl 'async_trait + Client<C>), ) -> Pin<Box<dyn Future<Output = Result<Subscription<Bytes>, SubstrateError>> + Send + 'async_trait>>
where 'life0: 'async_trait,

A method to subscribe to encoded finality proofs, given source client.
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fn verify_and_optimize_proof<'life0, 'life1, 'life2, 'async_trait, TargetChain>( target_client: &'life0 (impl 'async_trait + Client<TargetChain>), header: &'life1 C::Header, proof: &'life2 mut Self::FinalityProof, ) -> Pin<Box<dyn Future<Output = Result<Self::FinalityVerificationContext, SubstrateError>> + Send + 'async_trait>>
where TargetChain: 'async_trait + Chain, Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Verify and optimize finality proof before sending it to the target node. Read more
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fn check_max_expected_call_limits( header: &C::Header, proof: &Self::FinalityProof, ) -> SubmitFinalityProofCallExtras

Checks whether the given header and its finality proof fit the maximal expected call limits (size and weight).
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fn finality_verification_context<'life0, 'async_trait, TargetChain>( target_client: &'life0 (impl 'async_trait + Client<TargetChain>), at: HashOf<TargetChain>, ) -> Pin<Box<dyn Future<Output = Result<Self::FinalityVerificationContext, SubstrateError>> + Send + 'async_trait>>
where TargetChain: 'async_trait + Chain, Self: 'async_trait, 'life0: 'async_trait,

Get the context needed for validating a finality proof.
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fn synced_headers_finality_info<'life0, 'async_trait, TargetChain>( target_client: &'life0 (impl 'async_trait + Client<TargetChain>), at: TargetChain::Hash, ) -> Pin<Box<dyn Future<Output = Result<Vec<HeaderGrandpaInfo<HeaderOf<C>>>, SubstrateError>> + Send + 'async_trait>>
where TargetChain: 'async_trait + Chain, 'life0: 'async_trait,

Returns the finality info associated to the source headers synced with the target at the provided block.
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fn generate_source_key_ownership_proof<'life0, 'life1, 'async_trait>( source_client: &'life0 (impl 'async_trait + Client<C>), at: C::Hash, equivocation: &'life1 Self::EquivocationProof, ) -> Pin<Box<dyn Future<Output = Result<Self::KeyOwnerProof, SubstrateError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Generate key ownership proof for the provided equivocation.
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fn is_initialized<'life0, 'async_trait, TargetChain>( target_client: &'life0 (impl 'async_trait + Client<TargetChain>), ) -> Pin<Box<dyn Future<Output = Result<bool, SubstrateError>> + Send + 'async_trait>>
where TargetChain: 'async_trait + Chain, Self: 'async_trait, 'life0: 'async_trait,

Returns Ok(true) if finality pallet at the bridged chain has already been initialized.
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fn is_halted<'life0, 'async_trait, TargetChain>( target_client: &'life0 (impl 'async_trait + Client<TargetChain>), ) -> Pin<Box<dyn Future<Output = Result<bool, SubstrateError>> + Send + 'async_trait>>
where TargetChain: 'async_trait + Chain, Self: 'async_trait, 'life0: 'async_trait,

Returns Ok(true) if finality pallet at the bridged chain is halted.

Auto Trait Implementations§

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impl<C> Freeze for Grandpa<C>

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impl<C> RefUnwindSafe for Grandpa<C>
where C: RefUnwindSafe,

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impl<C> Send for Grandpa<C>
where C: Send,

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impl<C> Sync for Grandpa<C>
where C: Sync,

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impl<C> Unpin for Grandpa<C>
where C: Unpin,

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impl<C> UnwindSafe for Grandpa<C>
where C: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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