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Node.hs
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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE NumericUnderscores #-}
{-# LANGUAGE RankNTypes #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TupleSections #-}
{-# LANGUAGE TypeApplications #-}
-- |
-- Copyright: © 2020 IOHK
-- License: Apache-2.0
--
-- Network Layer for talking to Haskell re-written nodes.
--
-- Good to read before / additional resources:
--
-- - Module's documentation in `ouroboros-network/typed-protocols/src/Network/TypedProtocols.hs`
-- - Data Diffusion and Peer Networking in Shelley (see: https://raw.githubusercontent.com/wiki/cardano-foundation/cardano-wallet/data_diffusion_and_peer_networking_in_shelley.pdf)
-- - In particular sections 4.1, 4.2, 4.6 and 4.8
module Cardano.Wallet.Shelley.Network.Node
( withNetworkLayer
, Observer (query, startObserving, stopObserving)
, newObserver
, ObserverLog (..)
-- * Logging
, Log (..)
)
where
import Cardano.Api
( AnyCardanoEra (..)
, CardanoEra (..)
, NodeToClientVersion (..)
, SlotNo (..)
)
import Cardano.Api.Shelley
( toConsensusGenTx
)
import Cardano.BM.Data.Severity
( Severity (..)
)
import Cardano.BM.Data.Tracer
( HasPrivacyAnnotation (..)
, HasSeverityAnnotation (..)
)
import Cardano.Crypto.Hash qualified as Crypto
import Cardano.Launcher.Node
( CardanoNodeConn
, nodeSocketFile
)
import Cardano.Ledger.Credential qualified as SL
import Cardano.Ledger.Crypto qualified as SL
import Cardano.Ledger.Shelley.API qualified as SL
import Cardano.Ledger.Shelley.LedgerState qualified as SL
import Cardano.Pool.Types
( PoolId
, StakePoolsSummary (..)
)
import Cardano.Wallet.Byron.Compatibility
( byronCodecConfig
, protocolParametersFromUpdateState
)
import Cardano.Wallet.Logging
( BracketLog
, bracketTracer
, produceTimings
)
import Cardano.Wallet.Network
( ChainFollowLog (..)
, ChainFollower
, ChainSyncLog (..)
, ErrPostTx (..)
, NetworkLayer (..)
, mapChainFollower
, mapChainSyncLog
, withFollowStatsMonitoring
)
import Cardano.Wallet.Primitive.Slotting
( TimeInterpreter
, TimeInterpreterLog
, currentRelativeTime
, mkTimeInterpreter
)
import Cardano.Wallet.Primitive.SyncProgress
( SyncProgress (..)
, SyncTolerance
)
import Cardano.Wallet.Primitive.SyncProgress qualified as SP
import Cardano.Wallet.Primitive.Types
( GenesisParameters (..)
)
import Cardano.Wallet.Primitive.Types qualified as W
import Cardano.Wallet.Primitive.Types.Coin qualified as W
import Cardano.Wallet.Primitive.Types.RewardAccount qualified as W
import Cardano.Wallet.Primitive.Types.Tx
( SealedTx (..)
)
import Cardano.Wallet.Primitive.Types.Tx qualified as W
import Cardano.Wallet.Shelley.Compatibility
( StandardCrypto
, fromAllegraPParams
, fromAlonzoPParams
, fromBabbagePParams
, fromConwayPParams
, fromMaryPParams
, fromNonMyopicMemberRewards
, fromPoint
, fromPoolDistr
, fromShelleyPParams
, fromStakeCredential
, fromTip
, fromTip'
, nodeToClientVersions
, optimumNumberOfPools
, slottingParametersFromGenesis
, toCardanoBlockHeader
, toCardanoEra
, toLedgerStakeCredential
, toPoint
, toShelleyCoin
, unsealShelleyTx
)
import Cardano.Wallet.Shelley.Compatibility.Ledger qualified as Ledger
import Codec.CBOR.Term qualified as CBOR
import Control.Applicative
( liftA3
)
import Control.Concurrent.Class.MonadSTM
( MonadSTM
, STM
, TMVar
, TQueue
, TVar
, atomically
, isEmptyTMVar
, modifyTVar'
, newEmptyTMVarIO
, newTMVarIO
, newTQueue
, newTQueueIO
, newTVarIO
, putTMVar
, readTMVar
, readTVar
, readTVarIO
, retry
, takeTMVar
, tryReadTMVar
, writeTVar
)
import Control.Monad
( forever
, unless
, void
, when
)
import Control.Monad.Class.MonadAsync
( MonadAsync
)
import Control.Monad.Class.MonadST
( MonadST
)
import Control.Monad.Class.MonadThrow
( MonadThrow
)
import Control.Monad.Class.MonadTimer
( MonadTimer
, threadDelay
)
import Control.Monad.Except
( runExcept
)
import Control.Monad.IO.Unlift
( MonadIO
, MonadUnliftIO
, liftIO
)
import Control.Monad.Trans.Except
( ExceptT (..)
, throwE
)
import Control.Retry
( RetryAction (..)
, RetryPolicyM
, RetryStatus (..)
, capDelay
, fibonacciBackoff
, recoveringDynamic
)
import Control.Tracer
( Tracer (..)
, contramap
, nullTracer
, traceWith
)
import Data.ByteString.Lazy
( ByteString
)
import Data.Either
( fromRight
)
import Data.Function
( (&)
)
import Data.Functor
( ($>)
)
import Data.Functor.Contravariant
( (>$<)
)
import Data.List
( isInfixOf
)
import Data.List.NonEmpty
( NonEmpty
)
import Data.Map
( Map
, (!)
)
import Data.Map qualified as Map
import Data.Maybe
( fromMaybe
)
import Data.Proxy
( Proxy (..)
)
import Data.Quantity
( Percentage
)
import Data.Set
( Set
)
import Data.Set qualified as Set
import Data.Text qualified as T
import Data.Text.Class
( ToText (..)
)
import Data.Time.Clock
( DiffTime
)
import Data.Void
( Void
)
import Fmt
( Buildable (..)
, fmt
, hexF
, listF
, mapF
, pretty
, (+|)
, (|+)
)
import GHC.Stack
( HasCallStack
)
import Network.Mux
( MuxError (..)
, MuxErrorType (..)
, WithMuxBearer (..)
)
import Ouroboros.Consensus.Byron.Ledger qualified as Byron
import Ouroboros.Consensus.Cardano
( CardanoBlock
)
import Ouroboros.Consensus.Cardano.Block
( BlockQuery (..)
, CardanoEras
, CodecConfig (..)
, EraCrypto
, GenTx
, StandardAllegra
, StandardAlonzo
, StandardBabbage
, StandardMary
, StandardShelley
)
import Ouroboros.Consensus.HardFork.Combinator
( EraIndex (..)
, QueryAnytime (..)
, QueryHardFork (..)
, eraIndexToInt
)
import Ouroboros.Consensus.HardFork.Combinator.AcrossEras
( MismatchEraInfo
)
import Ouroboros.Consensus.HardFork.History.Qry
( Interpreter
, PastHorizonException (..)
)
import Ouroboros.Consensus.Ledger.Query
( Query (..)
)
import Ouroboros.Consensus.Ledger.SupportsMempool
( ApplyTxErr
)
import Ouroboros.Consensus.Network.NodeToClient
( ClientCodecs
, Codecs' (..)
, DefaultCodecs
, clientCodecs
, defaultCodecs
)
import Ouroboros.Consensus.Node.NetworkProtocolVersion
( HasNetworkProtocolVersion (..)
, SupportedNetworkProtocolVersion (..)
)
import Ouroboros.Consensus.Protocol.Praos
( Praos
)
import Ouroboros.Consensus.Protocol.TPraos
( TPraos
)
import Ouroboros.Consensus.Shelley.Eras
( StandardConway
)
import Ouroboros.Consensus.Shelley.Ledger qualified as Shelley
import Ouroboros.Consensus.Shelley.Ledger.Config
( CodecConfig (..)
, getCompactGenesis
)
import Ouroboros.Network.Block
( Point
, Tip (..)
)
import Ouroboros.Network.Client.Wallet
( LSQ (..)
, LocalStateQueryCmd (..)
, LocalTxSubmissionCmd (..)
, PipeliningStrategy
, chainSyncFollowTip
, chainSyncWithBlocks
, localStateQuery
, localTxSubmission
, send
)
import Ouroboros.Network.Driver.Simple
( TraceSendRecv
, runPeer
, runPipelinedPeer
)
import Ouroboros.Network.Mux
( MuxMode (..)
, MuxPeer (..)
, OuroborosApplication (..)
, RunMiniProtocol (..)
)
import Ouroboros.Network.NodeToClient
( ConnectionId (..)
, Handshake
, LocalAddress
, NetworkConnectTracers (..)
, NodeToClientProtocols (..)
, NodeToClientVersionData
, connectTo
, localSnocket
, nodeToClientProtocols
, withIOManager
)
import Ouroboros.Network.Protocol.ChainSync.Client
( chainSyncClientPeer
)
import Ouroboros.Network.Protocol.ChainSync.ClientPipelined
( chainSyncClientPeerPipelined
)
import Ouroboros.Network.Protocol.Handshake.Version
( combineVersions
, simpleSingletonVersions
)
import Ouroboros.Network.Protocol.LocalStateQuery.Client
( localStateQueryClientPeer
)
import Ouroboros.Network.Protocol.LocalStateQuery.Type
( LocalStateQuery
)
import Ouroboros.Network.Protocol.LocalTxSubmission.Client
( localTxSubmissionClientPeer
)
import Ouroboros.Network.Protocol.LocalTxSubmission.Type
( LocalTxSubmission (..)
, SubmitResult (..)
)
import System.IO.Error
( isDoesNotExistError
, isResourceVanishedError
)
import UnliftIO.Async
( async
, link
)
import UnliftIO.Compat
( coerceHandlers
)
import UnliftIO.Concurrent
( ThreadId
)
import UnliftIO.Exception
( Handler (..)
, IOException
)
import Prelude
{- HLINT ignore "Use readTVarIO" -}
{- HLINT ignore "Use newTVarIO" -}
{- HLINT ignore "Use newEmptyTMVarIO" -}
-- | Create an instance of 'NetworkLayer' by connecting to a local node.
withNetworkLayer
:: HasCallStack
=> Tracer IO Log
-- ^ Logging of network layer startup
-> PipeliningStrategy (CardanoBlock StandardCrypto)
-- ^ pipelining value by the block heigh
-> W.NetworkParameters
-- ^ Initial blockchain parameters
-> CardanoNodeConn
-- ^ Socket for communicating with the node
-> NodeToClientVersionData
-- ^ Codecs for the node's client
-> SyncTolerance
-> (NetworkLayer IO (CardanoBlock StandardCrypto) -> IO a)
-- ^ Callback function with the network layer
-> IO a
withNetworkLayer tr pipeliningStrategy np conn ver tol action = do
trTimings <- traceQueryTimings tr
withNodeNetworkLayerBase
(tr <> trTimings)
pipeliningStrategy
np
conn
ver
tol
action
withNodeNetworkLayerBase
:: HasCallStack
=> Tracer IO Log
-> PipeliningStrategy (CardanoBlock StandardCrypto)
-> W.NetworkParameters
-> CardanoNodeConn
-> NodeToClientVersionData
-> SyncTolerance
-> (NetworkLayer IO (CardanoBlock StandardCrypto) -> IO a)
-> IO a
withNodeNetworkLayerBase
tr
pipeliningStrategy
np
conn
versionData
tol
action = do
-- NOTE: We keep client connections running for accessing the node tip,
-- submitting transactions, querying parameters and delegations/rewards.
--
-- It is safe to retry when the connection is lost here because this client
-- doesn't really do anything but sending messages to get the node's tip.
-- It doesn't rely on the intersection to be up-to-date.
let
handlers cl = retryOnConnectionLost (MsgConnectionStatus cl >$< tr)
-- FIXME: Would be nice to remove these multiple vars.
-- Not as trivial as it seems, since we'd need to preserve the @debounce@
-- behaviour.
(readNodeTip, networkParamsVar, interpreterVar, eraVar, txSubmissionQ) <-
connectNodeClient (handlers ClientNodeTip)
queryRewardQ <-
connectDelegationRewardsClient
(handlers ClientDelegationRewards)
rewardsObserver <-
newRewardBalanceFetcher tr readNodeTip queryRewardQ
let
readCurrentNodeEra = atomically $ readTMVar eraVar
action
NetworkLayer
{ chainSync = \trFollowLog follower -> do
let
withStats =
withFollowStatsMonitoring
trFollowLog
(_syncProgress interpreterVar)
withStats $ \trChainSyncLog -> do
let
mapB = toCardanoBlockHeader gp
mapP = fromPoint
let
blockHeader = fromTip' gp
let
client =
mkWalletClient
(mapChainSyncLog mapB mapP >$< trChainSyncLog)
pipeliningStrategy
(mapChainFollower toPoint mapP blockHeader id follower)
cfg
traceWith trFollowLog MsgStartFollowing
let
trChainSync = MsgConnectionStatus ClientChainSync >$< tr
retryHandlers = handlers ClientChainSync
connectClient trChainSync retryHandlers client versionData conn
, lightSync = Nothing
, currentNodeTip =
fromTip getGenesisBlockHash <$> atomically readNodeTip
, currentNodeEra =
-- NOTE: Is not guaranteed to be consistent with @currentNodeTip@
readCurrentNodeEra
, watchNodeTip =
_watchNodeTip readNodeTip
, currentProtocolParameters =
fst <$> atomically (readTMVar networkParamsVar)
, currentSlottingParameters =
snd <$> atomically (readTMVar networkParamsVar)
, postTx =
_postTx txSubmissionQ readCurrentNodeEra
, stakeDistribution =
_stakeDistribution queryRewardQ
, getCachedRewardAccountBalance =
_getCachedRewardAccountBalance rewardsObserver
, fetchRewardAccountBalances =
fetchRewardAccounts tr queryRewardQ
, timeInterpreter =
_timeInterpreter (contramap MsgInterpreterLog tr) interpreterVar
, syncProgress = _syncProgress interpreterVar
}
where
{ getGenesisBlockHash
, getGenesisBlockDate
} = W.genesisParameters np
sp = W.slottingParameters np
cfg = codecConfig sp
connectNodeClient
:: HasCallStack
=> RetryHandlers
-> IO
( STM IO (Tip (CardanoBlock StandardCrypto))
, TMVar IO (W.ProtocolParameters, W.SlottingParameters)
, TMVar IO (CardanoInterpreter StandardCrypto)
, TMVar IO AnyCardanoEra
, TQueue
IO
( LocalTxSubmissionCmd
(GenTx (CardanoBlock StandardCrypto))
(ApplyTxErr (CardanoBlock StandardCrypto))
IO
)
)
connectNodeClient handlers = do
networkParamsVar <- newEmptyTMVarIO
interpreterVar <- newEmptyTMVarIO
eraVar <- newEmptyTMVarIO
txSubmissionQ <- newTQueueIO
(mkProtocols, readTip) <-
mkWalletToNodeProtocols
tr
np
(curry (atomically . repsertTMVar networkParamsVar))
(atomically . repsertTMVar interpreterVar)
(atomically . repsertTMVar eraVar)
txSubmissionQ
let
trNodeTip = MsgConnectionStatus ClientNodeTip >$< tr
ouroborosApp :: NodeToClientVersion -> WalletOuroborosApplication IO
ouroborosApp = nodeToClientProtocols =<< const . const . mkProtocols
link
=<< async
(connectClient trNodeTip handlers ouroborosApp versionData conn)
pure (readTip, networkParamsVar, interpreterVar, eraVar, txSubmissionQ)
connectDelegationRewardsClient
:: HasCallStack
=> RetryHandlers
-> IO (TQueue IO (LocalStateQueryCmd (CardanoBlock StandardCrypto) IO))
connectDelegationRewardsClient handlers = do
q <- atomically newTQueue
let
client = mkDelegationRewardsClient tr cfg q
trRewardsClient = MsgConnectionStatus ClientDelegationRewards >$< tr
link
=<< async
(connectClient trRewardsClient handlers client versionData conn)
pure q
-- NOTE1: only shelley transactions can be submitted like this, because they
-- are deserialised as shelley transactions before submitting.
--
-- NOTE2: It is not ideal to query the current era again here because we
-- should in practice use the same era as the one used to construct the
-- transaction. However, when turning transactions to 'SealedTx', we loose
-- all form of type-level indicator about the era. The 'SealedTx' type
-- shouldn't be needed anymore since we've dropped jormungandr, so we could
-- instead carry a transaction from cardano-api types with proper typing.
_postTx txSubmissionQueue readCurrentEra tx = do
liftIO $ traceWith tr $ MsgPostTx tx
preferredEra <- liftIO readCurrentEra
let
cmd =
CmdSubmitTx . toConsensusGenTx
$ unsealShelleyTx preferredEra tx
liftIO (send txSubmissionQueue cmd) >>= \case
SubmitSuccess -> pure ()
SubmitFail e -> throwE $ ErrPostTxValidationError $ T.pack $ show e
_stakeDistribution queue coin = do
liftIO $ traceWith tr $ MsgWillQueryRewardsForStake coin
let
qry :: LSQ (CardanoBlock StandardCrypto) IO (Maybe StakePoolsSummary)
qry =
liftA3
(liftA3 StakePoolsSummary)
getNOpt
queryNonMyopicMemberRewards
stakeDistr
mres <- bracketQuery "stakePoolsSummary" tr $ queue `send` (SomeLSQ qry)
-- The result will be Nothing if query occurs during the byron era
traceWith tr $ MsgFetchStakePoolsData mres
case mres of
Just res@StakePoolsSummary {rewards, stake} -> do
liftIO
$ traceWith tr
$ MsgFetchStakePoolsDataSummary
(Map.size stake)
(Map.size rewards)
return res
Nothing -> pure $ StakePoolsSummary 0 mempty mempty
where
stakeDistr
:: LSQ
(CardanoBlock StandardCrypto)
IO
(Maybe (Map PoolId Percentage))
stakeDistr =
shelleyBased
(fromPoolDistr <$> LSQry Shelley.GetStakeDistribution)
getNOpt :: LSQ (CardanoBlock StandardCrypto) IO (Maybe Int)
getNOpt =
onAnyEra
(pure Nothing)
(Just . optimumNumberOfPools <$> LSQry Shelley.GetCurrentPParams)
(Just . optimumNumberOfPools <$> LSQry Shelley.GetCurrentPParams)
(Just . optimumNumberOfPools <$> LSQry Shelley.GetCurrentPParams)
(Just . optimumNumberOfPools <$> LSQry Shelley.GetCurrentPParams)
(Just . optimumNumberOfPools <$> LSQry Shelley.GetCurrentPParams)
(Just . optimumNumberOfPools <$> LSQry Shelley.GetCurrentPParams)
queryNonMyopicMemberRewards
:: LSQ
(CardanoBlock StandardCrypto)
IO
(Maybe (Map PoolId W.Coin))
queryNonMyopicMemberRewards =
shelleyBased
$ (getRewardMap . fromNonMyopicMemberRewards)
<$> LSQry (Shelley.GetNonMyopicMemberRewards stake)
where
stake :: Set (Either SL.Coin a)
stake = Set.singleton $ Left $ toShelleyCoin coin
fromJustRewards =
fromMaybe
( error
"stakeDistribution: requested rewards\
\ not included in response"
)
getRewardMap
:: Map (Either W.Coin W.RewardAccount) (Map PoolId W.Coin)
-> Map PoolId W.Coin
getRewardMap =
fromJustRewards . Map.lookup (Left coin)
_watchNodeTip readTip cb = do
observeForever readTip $ \tip -> do
let
header = fromTip getGenesisBlockHash tip
bracketTracer (contramap (MsgWatcherUpdate header) tr) $ cb header
-- TODO(#2042): Make wallets call manually, with matching stopObserving.
_getCachedRewardAccountBalance rewardsObserver k = do
startObserving rewardsObserver k
fromMaybe (W.Coin 0) <$> query rewardsObserver k
_timeInterpreter
:: HasCallStack
=> Tracer IO TimeInterpreterLog
-> TMVar IO (CardanoInterpreter sc)
-> TimeInterpreter (ExceptT PastHorizonException IO)
_timeInterpreter tr' var = do
let
readInterpreter = liftIO $ atomically $ readTMVar var
mkTimeInterpreter tr' getGenesisBlockDate readInterpreter
_syncProgress
:: TMVar IO (CardanoInterpreter sc) -> SlotNo -> IO SyncProgress
_syncProgress var slot =
atomically (tryReadTMVar var) >>= \case
-- If the wallet has been started, but not yet been able to connect
-- to the node, we don't have an interpreter summary, and can't
-- calculate the syncProgress using a @SlotNo@.
--
-- If we want to guarantee the availability of @SyncProgress@, we
-- could consider storing @UTCTime@ along with the follower tip in
-- question, but that would make chain-following dependent on
-- a TimeInterpreter.
Nothing -> pure NotResponding
Just i -> do
let
ti = mkTimeInterpreter nullTracer getGenesisBlockDate (pure i)
-- Getting a past horizon error here should be unlikely, but
-- could happen if we switch from a in-sync node to a
-- not-in-sync node, either by restarting the wallet, or
-- restarting the node using the same socket but different db.
fromRight NotResponding . runExcept . SP.syncProgress tol ti slot
<$> currentRelativeTime ti
{-------------------------------------------------------------------------------
NetworkClient
Node-to-client mini-protocol descriptions
-------------------------------------------------------------------------------}
-- | A protocol client that will never leave the initial state.
doNothingProtocol
:: MonadTimer m => RunMiniProtocol 'InitiatorMode ByteString m a Void
doNothingProtocol =
InitiatorProtocolOnly $ MuxPeerRaw $ const $ forever $ threadDelay 1_000_000
type WalletOuroborosApplication m =
OuroborosApplication
'InitiatorMode -- Initiator ~ Client (as opposed to Responder / Server)
LocalAddress -- Address type
ByteString -- Concrete representation for bytes string
m -- Underlying monad the wallet runs in
Void -- Return type of a network client. Void means the client never exits.
Void -- Irrelevant for initiator. Return type of 'ResponderMode' app.
type WalletNodeToClientProtocols m =
NodeToClientProtocols
'InitiatorMode -- Initiator ~ Client (as opposed to Responder / Server)
ByteString -- Concrete representation for bytes string
m -- Underlying monad the wallet runs in
Void -- Return type of a network client. Void means the client never exits.
Void -- Irrelevant for initiator. Return type of 'ResponderMode' app.
-- | Construct a network client with the given communication channel, for the
-- purposes of syncing blocks to a single wallet.
mkWalletClient
:: forall m block
. ( block ~ CardanoBlock (StandardCrypto)
, MonadThrow m
, MonadST m
, MonadTimer m
, MonadAsync m
)
=> Tracer m (ChainSyncLog block (Point block))
-> PipeliningStrategy block
-> ChainFollower m (Point block) (Tip block) (NonEmpty block)
-> CodecConfig block
-> NodeToClientVersion
-> WalletOuroborosApplication m
mkWalletClient tr pipeliningStrategy follower cfg nodeToClientVer =
nodeToClientProtocols (\_connectionId _stm -> protocols) nodeToClientVer
where
protocols =
NodeToClientProtocols
{ localTxSubmissionProtocol = doNothingProtocol
, localStateQueryProtocol = doNothingProtocol
, localTxMonitorProtocol = doNothingProtocol
, localChainSyncProtocol =
InitiatorProtocolOnly $ MuxPeerRaw $ \channel -> do
let
codec = cChainSyncCodec $ codecs nodeToClientVer cfg
runPipelinedPeer nullTracer codec channel
$ chainSyncClientPeerPipelined
$ chainSyncWithBlocks tr pipeliningStrategy follower
}
-- | Construct a network client with the given communication channel, for the
-- purposes of querying delegations and rewards.
mkDelegationRewardsClient
:: forall m
. (MonadThrow m, MonadST m, MonadTimer m, MonadIO m)
=> Tracer m Log
-- ^ Base trace for underlying protocols
-> CodecConfig (CardanoBlock StandardCrypto)
-> TQueue m (LocalStateQueryCmd (CardanoBlock StandardCrypto) m)
-- ^ Communication channel with the LocalStateQuery client
-> NodeToClientVersion
-> WalletOuroborosApplication m
mkDelegationRewardsClient tr cfg queryRewardQ nodeToClientVer =
nodeToClientProtocols (\_connectionId _stm -> protocols) nodeToClientVer
where
protocols =
NodeToClientProtocols
{ localChainSyncProtocol = doNothingProtocol
, localTxSubmissionProtocol = doNothingProtocol
, localTxMonitorProtocol = doNothingProtocol
, localStateQueryProtocol =
InitiatorProtocolOnly $ MuxPeerRaw $ \channel -> do
let
tr' = MsgLocalStateQuery DelegationRewardsClient >$< tr
codecs' = serialisedCodecs nodeToClientVer cfg
codec = cStateQueryCodec codecs'
runPeer tr' codec channel
$ localStateQueryClientPeer
$ localStateQuery queryRewardQ
}
type CardanoInterpreter sc = Interpreter (CardanoEras sc)
-- | Construct node protocols with the given communication channels,
-- for the purpose of:
--
-- * Tracking the node tip
-- * Tracking the latest protocol parameters state.
-- * Querying the history interpreter as necessary.
-- * Submitting transactions
mkWalletToNodeProtocols
:: forall m
. (HasCallStack, MonadUnliftIO m, MonadThrow m, MonadST m, MonadTimer m)
=> Tracer m Log
-- ^ Base trace for underlying protocols
-> W.NetworkParameters
-- ^ Initial blockchain parameters
-> (W.ProtocolParameters -> W.SlottingParameters -> m ())
-- ^ Notifier callback for when parameters for tip change.
-> (CardanoInterpreter StandardCrypto -> m ())
-- ^ Notifier callback for when time interpreter is updated.
-> (AnyCardanoEra -> m ())
-- ^ Notifier callback for when the era is updated
-> TQueue
m
( LocalTxSubmissionCmd
(GenTx (CardanoBlock StandardCrypto))
(ApplyTxErr (CardanoBlock StandardCrypto))
m
)
-> m
( NodeToClientVersion -> WalletNodeToClientProtocols m
, STM m (Tip (CardanoBlock StandardCrypto))
)
mkWalletToNodeProtocols
tr
np
onPParamsUpdate
onInterpreterUpdate
onEraUpdate
txSubmissionQ = do
( localStateQueryQ
:: TQueue m (LocalStateQueryCmd (CardanoBlock StandardCrypto) m)
) <-
atomically newTQueue
tipVar <- newTVarIO (Just $ AnyCardanoEra ByronEra, TipGenesis)
(onPParamsUpdate' :: (W.ProtocolParameters, W.SlottingParameters) -> m ()) <-
debounce $ \(pp, sp) -> do
traceWith tr $ MsgProtocolParameters pp sp
onPParamsUpdate pp sp
let
queryParams = do
eraBounds <-
W.EraInfo
<$> LSQry (QueryAnytimeByron GetEraStart)
<*> LSQry (QueryAnytimeShelley GetEraStart)
<*> LSQry (QueryAnytimeAllegra GetEraStart)
<*> LSQry (QueryAnytimeMary GetEraStart)
<*> LSQry (QueryAnytimeAlonzo GetEraStart)
<*> LSQry (QueryAnytimeBabbage GetEraStart)
sp <-
byronOrShelleyBased
(pure $ W.slottingParameters np)
( (slottingParametersFromGenesis . getCompactGenesis)
<$> LSQry Shelley.GetGenesisConfig
)
pp <-
onAnyEra
( protocolParametersFromUpdateState eraBounds
<$> LSQry Byron.GetUpdateInterfaceState
)
( fromShelleyPParams eraBounds
<$> LSQry Shelley.GetCurrentPParams
)
( fromAllegraPParams eraBounds
<$> LSQry Shelley.GetCurrentPParams
)
( fromMaryPParams eraBounds
<$> LSQry Shelley.GetCurrentPParams
)
( fromAlonzoPParams eraBounds
<$> LSQry Shelley.GetCurrentPParams
)
( fromBabbagePParams eraBounds
<$> LSQry Shelley.GetCurrentPParams
)
( fromConwayPParams eraBounds
<$> LSQry Shelley.GetCurrentPParams
)
return (pp, sp)
let
queryInterpreter = LSQry (QueryHardFork GetInterpreter)
let
cfg = codecConfig (W.slottingParameters np)
-- NOTE: These are updated every block. This is far more often than
-- necessary.
--
-- By blocking (with `send`) we ensure we don't queue multiple queries.
let
onTipUpdate _tip = do
let
qry = (,,) <$> queryParams <*> queryInterpreter <*> currentEra
(pparams, int, e) <- localStateQueryQ `send` (SomeLSQ qry)
onPParamsUpdate' pparams
onInterpreterUpdate int
onEraUpdate e
link =<< async (observeForever (readTVar tipVar) onTipUpdate)
let
ntcProtocols v =
NodeToClientProtocols
{ localChainSyncProtocol =
InitiatorProtocolOnly $ MuxPeerRaw $ \channel -> do
let
codec = cChainSyncCodec $ codecs v cfg
runPeer nullTracer codec channel
$ chainSyncClientPeer
$ chainSyncFollowTip toCardanoEra
$ curry (atomically . writeTVar tipVar)
, localStateQueryProtocol =
InitiatorProtocolOnly $ MuxPeerRaw $ \channel -> do
let
codec = cStateQueryCodec $ serialisedCodecs v cfg
client = localStateQuery localStateQueryQ
peer = localStateQueryClientPeer client
tr' = MsgLocalStateQuery TipSyncClient >$< tr
runPeer tr' codec channel peer
, localTxSubmissionProtocol =
InitiatorProtocolOnly $ MuxPeerRaw $ \channel -> do
let
bn2cVer = codecVersion v
codec = cTxSubmissionCodec (clientCodecs cfg bn2cVer v)
trTxSubmission = MsgTxSubmission >$< tr
client = localTxSubmission txSubmissionQ
peer = localTxSubmissionClientPeer client
runPeer trTxSubmission codec channel peer
, localTxMonitorProtocol = doNothingProtocol
}
pure (ntcProtocols, snd <$> readTVar tipVar)
-- FIXME: We can remove the era from the tip sync client now.
{-------------------------------------------------------------------------------
Thread for observing
Reward Account Balance
-------------------------------------------------------------------------------}
newRewardBalanceFetcher
:: Tracer IO Log
-- ^ Used to convert tips for logging
-> STM IO (Tip (CardanoBlock StandardCrypto))
-- ^ STM action for observing the current tip
-> TQueue IO (LocalStateQueryCmd (CardanoBlock StandardCrypto) IO)
-> IO (Observer IO W.RewardAccount W.Coin)
newRewardBalanceFetcher tr readNodeTip queryRewardQ = do
(ob, refresh) <- newObserver (contramap MsgObserverLog tr) fetch
link =<< async (observeForever readNodeTip refresh)
return ob
where
fetch
:: Tip (CardanoBlock StandardCrypto)
-> Set W.RewardAccount
-> IO (Maybe (Map W.RewardAccount W.Coin))
fetch _tip accounts | Set.null accounts = pure (Just mempty)
fetch _tip accounts = do
-- NOTE: We no longer need the tip to run LSQ queries. The local state
-- query client will automatically acquire the latest tip.
Just <$> fetchRewardAccounts tr queryRewardQ accounts
fetchRewardAccounts
:: Tracer IO Log
-> TQueue IO (LocalStateQueryCmd (CardanoBlock StandardCrypto) IO)