authority_selection_inherents::authority_selection_inputs

Trait AuthoritySelectionDataSource

Source 
pub trait AuthoritySelectionDataSource {
    // Required methods
    fn get_ariadne_parameters<'life0, 'async_trait>(
        &'life0 self,
        epoch_number: McEpochNumber,
        d_parameter: PolicyId,
        permissioned_candidates: PolicyId,
    ) -> Pin<Box<dyn Future<Output = Result<AriadneParameters, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn get_candidates<'life0, 'async_trait>(
        &'life0 self,
        epoch: McEpochNumber,
        committee_candidate_address: MainchainAddress,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<CandidateRegistrations>, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn get_epoch_nonce<'life0, 'async_trait>(
        &'life0 self,
        epoch: McEpochNumber,
    ) -> Pin<Box<dyn Future<Output = Result<Option<EpochNonce>, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn data_epoch<'life0, 'async_trait>(
        &'life0 self,
        for_epoch: McEpochNumber,
    ) -> Pin<Box<dyn Future<Output = Result<McEpochNumber, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}
Expand description

Queries about the Authority Candidates

Required Methods§

Source

fn get_ariadne_parameters<'life0, 'async_trait>( &'life0 self, epoch_number: McEpochNumber, d_parameter: PolicyId, permissioned_candidates: PolicyId, ) -> Pin<Box<dyn Future<Output = Result<AriadneParameters, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns D-parameter and list of permissioned candidates that is effective for the given epoch. The data from the latest block of data_epoch(epoch) will be used if available, otherwise returns data at the latest block of the chain.

Source

fn get_candidates<'life0, 'async_trait>( &'life0 self, epoch: McEpochNumber, committee_candidate_address: MainchainAddress, ) -> Pin<Box<dyn Future<Output = Result<Vec<CandidateRegistrations>, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns the list of registrations that is effective for the given epoch. The data from the latest block of data_epoch(epoch) will be used if available, otherwise returns data at the latest block of the chain. Each item is a list of one candidate registrations.

Source

fn get_epoch_nonce<'life0, 'async_trait>( &'life0 self, epoch: McEpochNumber, ) -> Pin<Box<dyn Future<Output = Result<Option<EpochNonce>, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns Cardano Epoch Nonce. None, if the nonce for given epoch is not known yet.

Source

fn data_epoch<'life0, 'async_trait>( &'life0 self, for_epoch: McEpochNumber, ) -> Pin<Box<dyn Future<Output = Result<McEpochNumber, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

§Arguments
  • for_epoch: main chain epoch number during which candidate data is meant to be used

returns: Result<McEpochNumber, Box<dyn std::error::Error + Send + Sync>> - data source methods called with for_epoch will query only for data which was stored on main chain in the returned epoch or earlier

Implementors§