Safe Haskell	Safe-Inferred
Language	GHC2021

Hydra.Chain.Offline

Synopsis

offlineHeadId :: HeadSeed -> HeadId
newtype InitialUTxOParseException = InitialUTxOParseException String
loadGenesisFile :: Maybe FilePath -> IO (GenesisParameters ShelleyEra)
withOfflineChain :: OfflineChainConfig -> Party -> [Party] -> ChainStateHistory Tx -> ChainComponent Tx IO a
tickForever :: GenesisParameters ShelleyEra -> (ChainEvent Tx -> IO ()) -> IO ()
offlineBlockHash :: Hash BlockHeader

Documentation

offlineHeadId :: HeadSeed -> HeadId Source #

Derived HeadId of offline head from a HeadSeed.

newtype InitialUTxOParseException Source #

Constructors

InitialUTxOParseException String

Instances

Instances details

Exception InitialUTxOParseException Source #
Instance details Defined in Hydra.Chain.Offline Methods toException :: InitialUTxOParseException -> SomeException Source # fromException :: SomeException -> Maybe InitialUTxOParseException Source # displayException :: InitialUTxOParseException -> String Source #
Show InitialUTxOParseException Source #
Instance details Defined in Hydra.Chain.Offline Methods showsPrec :: Int -> InitialUTxOParseException -> ShowS Source # show :: InitialUTxOParseException -> String Source # showList :: [InitialUTxOParseException] -> ShowS Source #

loadGenesisFile :: Maybe FilePath -> IO (GenesisParameters ShelleyEra) Source #

Load the given genesis file or use defaults specific to the offline mode. Throws: InitialUTxOParseException if the initial UTXO file could not be parsed.

withOfflineChain Source #

Arguments

:: OfflineChainConfig
-> Party
-> [Party]
-> ChainStateHistory Tx	Last known chain state as loaded from persistence.
-> ChainComponent Tx IO a

tickForever :: GenesisParameters ShelleyEra -> (ChainEvent Tx -> IO ()) -> IO () Source #

Continuously produces offline chain ticks according to wall-clock time. Each tick is aligned with the expected slot time, ensuring the node state stays synchronized with the offline chain. This prevents the node from violating the configured unsynced period which guarantees that client and network inputs are always processed safely.

offlineBlockHash :: Hash BlockHeader Source #