ouroboros-network-0.1.0.1: A networking layer for the Ouroboros blockchain protocol
Safe Haskell None
Language Haskell2010

Ouroboros.Network.NodeToClient

Description

This is the starting point for a module that will bring together the overall node to client protocol, as a collection of mini-protocols.

Synopsis

Documentation

nodeToClientProtocols :: ( ConnectionId addr -> STM m ControlMessage -> NodeToClientProtocols appType bytes m a b) -> NodeToClientVersion -> OuroborosApplication appType addr bytes m a b Source #

Make an OuroborosApplication for the bundle of mini-protocols that make up the overall node-to-client protocol.

This function specifies the wire format protocol numbers as well as the protocols that run for each NodeToClientVersion .

They are chosen to not overlap with the node to node protocol numbers. This is not essential for correctness, but is helpful to allow a single shared implementation of tools that can analyse both protocols, e.g. wireshark plugins.

data NodeToClientProtocols appType bytes m a b Source #

Recorod of node-to-client mini protocols.

Constructors

NodeToClientProtocols

Fields

data NodeToClientVersion Source #

Enumeration of node to client protocol versions.

Constructors

NodeToClientV_9

enabled CardanoNodeToClientVersion7 , i.e., Alonzo

NodeToClientV_10

added GetChainBlockNo and GetChainPoint queries

NodeToClientV_11

added GetRewardInfoPools Block query

NodeToClientV_12

added LocalTxMonitor mini-protocol

NodeToClientV_13

enabled CardanoNodeToClientVersion9 , i.e., Babbage

Instances

Instances details
Bounded NodeToClientVersion Source #
Instance details

Defined in Ouroboros.Network.NodeToClient.Version

Enum NodeToClientVersion Source #
Instance details

Defined in Ouroboros.Network.NodeToClient.Version

Eq NodeToClientVersion Source #
Instance details

Defined in Ouroboros.Network.NodeToClient.Version

Ord NodeToClientVersion Source #
Instance details

Defined in Ouroboros.Network.NodeToClient.Version

Show NodeToClientVersion Source #
Instance details

Defined in Ouroboros.Network.NodeToClient.Version

data NetworkConnectTracers addr vNumber Source #

Tracer used by connectToNode (and derivatives, like connectTo or 'Ouroboros.Network.NodeToClient.connectTo).

Constructors

NetworkConnectTracers

Fields

connectTo Source #

Arguments

:: LocalSnocket

callback constructed by withIOManager

-> NetworkConnectTracers LocalAddress NodeToClientVersion
-> Versions NodeToClientVersion NodeToClientVersionData ( OuroborosApplication InitiatorMode LocalAddress ByteString IO a b)

A dictionary of protocol versions & applications to run on an established connection. The application to run will be chosen by initial handshake protocol (the highest shared version will be chosen).

-> FilePath

path of the unix socket or named pipe

-> IO ()

A specialised version of connectToNode . It is a general purpose function which can connect using any version of the protocol. This is mostly useful for future enhancements.

data NetworkServerTracers addr vNumber Source #

Tracers required by a server which handles inbound connections.

Constructors

NetworkServerTracers

Fields

data NetworkMutableState addr Source #

Mutable state maintained by the network component.

Constructors

NetworkMutableState

Fields

data NetworkSubscriptionTracers withIPList addr vNumber Source #

IP subscription tracers.

Constructors

NetworkSubscriptionTracers

Fields

data ClientSubscriptionParams a Source #

Constructors

ClientSubscriptionParams

Fields

Null Protocol Peers

chainSyncPeerNull :: forall (header :: Type ) (point :: Type ) (tip :: Type ) m a. MonadTimer m => Peer ( ChainSync header point tip) AsClient StIdle m a Source #

Re-exported network interface

newtype IOManager Source #

This is public api to interact with the io manager; On Windows IOManager holds associateWithIOCompletionPort ; on other platforms IOManager can run over any type, and thus is guaranteed to be no-op.

Constructors

IOManager

Fields

withIOManager :: WithIOManager Source #

withIOManager allows to do asynchronous io on Windows hiding the differences between posix and Win32.

It starts an io manger thread, which should be only one running at a time, so the best place to call it is very close to the main function and last for duration of the application.

Async IO operations which are using the iocp port should not leak out-side of withIOManager . They will be silently cancelled when withIOManager exists. In particular one should not return IOManager from withIOManager .

localSnocket :: IOManager -> LocalSnocket Source #

Create a LocalSnocket .

On Windows , there is no way to get path associated to a named pipe. To go around this, the address passed to open via LocalFamily will be referenced by LocalSocket .

newtype LocalAddress Source #

Local address, on Unix is associated with AF_UNIX family, on

Windows with `named-pipes`.

Instances

Instances details
Eq LocalAddress
Instance details

Defined in Ouroboros.Network.Snocket

Ord LocalAddress
Instance details

Defined in Ouroboros.Network.Snocket

Show LocalAddress
Instance details

Defined in Ouroboros.Network.Snocket

Generic LocalAddress
Instance details

Defined in Ouroboros.Network.Snocket

Hashable LocalAddress
Instance details

Defined in Ouroboros.Network.Snocket

type Rep LocalAddress
Instance details

Defined in Ouroboros.Network.Snocket

type Rep LocalAddress = D1 (' MetaData "LocalAddress" "Ouroboros.Network.Snocket" "ouroboros-network-framework-0.1.0.1-8Cos8Lgj9CwATl9eblNk02" ' True ) ( C1 (' MetaCons "LocalAddress" ' PrefixI ' True ) ( S1 (' MetaSel (' Just "getFilePath") ' NoSourceUnpackedness ' NoSourceStrictness ' DecidedLazy ) ( Rec0 FilePath )))

Versions

newtype Versions vNum vData r Source #

The version map supported by the local agent keyed on the version identifier.

Each Version contains a function which takes negotiated version data and returns negotiated application (the r type variable).

If one needs to combine multiple versions the simplest way is to use one of the combinators: foldMapVersions , combineVersions or the Semigroup instance directly:

fold $ (simpleSingletonVersions ...)
      :| [ (simpleSingletonVersions ...)
         , (simpleSingletonVersions ...)
         , ...
         ]

Constructors

Versions

Fields

Instances

Instances details
Functor ( Versions vNum extra)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Version

Methods

fmap :: (a -> b) -> Versions vNum extra a -> Versions vNum extra b Source #

(<$) :: a -> Versions vNum extra b -> Versions vNum extra a Source #

Ord vNum => Semigroup ( Versions vNum vData r)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Version

Methods

(<>) :: Versions vNum vData r -> Versions vNum vData r -> Versions vNum vData r Source #

sconcat :: NonEmpty ( Versions vNum vData r) -> Versions vNum vData r Source #

stimes :: Integral b => b -> Versions vNum vData r -> Versions vNum vData r Source #

simpleSingletonVersions :: vNum -> vData -> r -> Versions vNum vData r Source #

Singleton smart constructor for Versions .

foldMapVersions :: ( Ord vNum, Foldable f, HasCallStack ) => (x -> Versions vNum extra r) -> f x -> Versions vNum extra r Source #

Useful for folding multiple Versions .

A foldMap restricted to the Versions Semigroup .

PRECONDITION: f x is non-empty.

Codecs

nodeToClientVersionCodec :: CodecCBORTerm ( Text , Maybe Int ) NodeToClientVersion Source #

We set 16ths bit to distinguish NodeToNodeVersion and NodeToClientVersion . This way connecting wrong protocol suite will fail during Handshake negotiation

This is done in backward compatible way, so NodeToClientV_1 encoding is not changed.

Re-exports

data ConnectionId addr Source #

Connection is identified by local and remote address.

TODO: the type variable which this data type fills in is called peerid . We should renamed to connectionId .

Constructors

ConnectionId

Fields

Instances

Instances details
Eq addr => Eq ( ConnectionId addr)
Instance details

Defined in Ouroboros.Network.ConnectionId

Ord addr => Ord ( ConnectionId addr)
Instance details

Defined in Ouroboros.Network.ConnectionId

Show addr => Show ( ConnectionId addr)
Instance details

Defined in Ouroboros.Network.ConnectionId

Generic ( ConnectionId addr)
Instance details

Defined in Ouroboros.Network.ConnectionId

Associated Types

type Rep ( ConnectionId addr) :: Type -> Type Source #

Hashable a => Hashable ( ConnectionId a)
Instance details

Defined in Ouroboros.Network.ConnectionId

Typeable addr => NoThunks ( ConnectionId addr)
Instance details

Defined in Ouroboros.Network.ConnectionId

type Rep ( ConnectionId addr)
Instance details

Defined in Ouroboros.Network.ConnectionId

type Rep ( ConnectionId addr) = D1 (' MetaData "ConnectionId" "Ouroboros.Network.ConnectionId" "ouroboros-network-framework-0.1.0.1-8Cos8Lgj9CwATl9eblNk02" ' False ) ( C1 (' MetaCons "ConnectionId" ' PrefixI ' True ) ( S1 (' MetaSel (' Just "localAddress") ' NoSourceUnpackedness ' SourceStrict ' DecidedStrict ) ( Rec0 addr) :*: S1 (' MetaSel (' Just "remoteAddress") ' NoSourceUnpackedness ' SourceStrict ' DecidedStrict ) ( Rec0 addr)))

data ErrorPolicies Source #

List of error policies for exception handling and a policy for handing application return values.

Constructors

ErrorPolicies

Fields

networkErrorPolicies :: ErrorPolicies Source #

ErrorPolicies for client application. Additional rules can be added by means of a Semigroup instance of ErrorPolicies .

This error policies will try to preserve subscriptionWorker , e.g. if the connect function throws an IOException we will suspend it for a shortDelay , and try to re-connect.

This allows to recover from a situation where a node temporarily shutsdown, or running a client application which is subscribed two more than one node (possibly over network).

data ErrorPolicy where Source #

Constructors

ErrorPolicy

Fields

data ErrorPolicyTrace Source #

Trace data for error policies

Constructors

ErrorPolicySuspendPeer ( Maybe (ConnectionOrApplicationExceptionTrace SomeException )) DiffTime DiffTime

suspending peer with a given exception until

ErrorPolicySuspendConsumer ( Maybe (ConnectionOrApplicationExceptionTrace SomeException )) DiffTime

suspending consumer until

ErrorPolicyLocalNodeError (ConnectionOrApplicationExceptionTrace SomeException )

caught a local exception

ErrorPolicyResumePeer

resume a peer (both consumer and producer)

ErrorPolicyKeepSuspended

consumer was suspended until producer will resume

ErrorPolicyResumeConsumer

resume consumer

ErrorPolicyResumeProducer

resume producer

ErrorPolicyUnhandledApplicationException SomeException

an application throwed an exception, which was not handled by any ErrorPolicy .

ErrorPolicyUnhandledConnectionException SomeException

connect throwed an exception, which was not handled by any ErrorPolicy .

ErrorPolicyAcceptException IOException

accept throwed an exception

data WithAddr addr a Source #

Constructors

WithAddr

Fields

data SuspendDecision t Source #

Semigroup of commands which acts on PeerState . The t variable might be initiated to DiffTime or Time m .

This semigroup allows to either suspend both consumer and producer or just the consumer part.

Constructors

SuspendPeer !t !t

peer is suspend; The first t is the time until which a local producer is suspended, the second one is the time until which a local consumer is suspended.

SuspendConsumer !t

suspend local consumer / initiator side until t (this mean we are not allowing to communicate with the producer / responder of a remote peer).

Throw

throw an error from the main thread.

Instances

Instances details
Functor SuspendDecision
Instance details

Defined in Ouroboros.Network.Subscription.PeerState

Eq t => Eq ( SuspendDecision t)
Instance details

Defined in Ouroboros.Network.Subscription.PeerState

Ord t => Ord ( SuspendDecision t)
Instance details

Defined in Ouroboros.Network.Subscription.PeerState

Show t => Show ( SuspendDecision t)
Instance details

Defined in Ouroboros.Network.Subscription.PeerState

Ord t => Semigroup ( SuspendDecision t)

The semigroup instance. Note that composing SuspendPeer with SuspendConsumer gives SuspendPeer . SuspendPeer and SuspendConsumer form a sub-semigroup.

Instance details

Defined in Ouroboros.Network.Subscription.PeerState

SAct ( SuspendDecision Time ) ( Maybe ( PeerState m))

Action of SuspendDecision on Maybe PeerState . We use this action together with alter function.

Note: SuspendDecision does not act on PeerState , only the sub-semigroup generated by SuspendConsumer and SuspendPeer does.

Instance details

Defined in Ouroboros.Network.Subscription.PeerState

data Handshake (vNumber :: k) (vParams :: k1) Source #

The handshake mini-protocol is used initially to agree the version and associated parameters of the protocol to use for all subsequent communication.

Instances

Instances details
ShowProxy ( Handshake vNumber vParams :: Type )
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Type

Show ( ClientHasAgency st)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Type

Show ( ServerHasAgency st)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Type

( Show vNumber, Show vParams) => Show ( Message ( Handshake vNumber vParams) from to)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Type

Protocol ( Handshake vNumber vParams)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Type

data Message ( Handshake vNumber vParams) (from :: Handshake vNumber vParams) (to :: Handshake vNumber vParams)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Type

data Message ( Handshake vNumber vParams) (from :: Handshake vNumber vParams) (to :: Handshake vNumber vParams) where
data ClientHasAgency (st :: Handshake vNumber vParams)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Type

data ClientHasAgency (st :: Handshake vNumber vParams) where
data ServerHasAgency (st :: Handshake vNumber vParams)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Type

data ServerHasAgency (st :: Handshake vNumber vParams) where
data NobodyHasAgency (st :: Handshake vNumber vParams)
Instance details

Defined in Ouroboros.Network.Protocol.Handshake.Type

data NobodyHasAgency (st :: Handshake vNumber vParams) where

data LocalAddresses addr Source #

Constructors

LocalAddresses

Fields

  • laIpv4 :: Maybe addr

    Local IPv4 address to use, Nothing indicates don't use IPv4

  • laIpv6 :: Maybe addr

    Local IPv6 address to use, Nothing indicates don't use IPv6

  • laUnix :: Maybe addr

    Local Unix address to use, Nothing indicates don't use Unix sockets