Network.Transport

Network Transport

Types

data Transport

To create a network abstraction layer, use one of the Network.Transport.* packages.

Constructors

Transport

Fields

• newEndPoint :: IO (Either (TransportError NewEndPointErrorCode) EndPoint)

  Create a new end point (heavyweight operation)

• closeTransport :: IO ()

  Shutdown the transport completely

data EndPoint

Network endpoint.

Constructors

EndPoint

Fields

• receive :: IO Event

  Endpoints have a single shared receive queue.

• address :: EndPointAddress

  EndPointAddress of the endpoint.

• connect :: EndPointAddress -> Reliability -> ConnectHints -> IO (Either (TransportError ConnectErrorCode) Connection)

  Create a new lightweight connection.

  connect should be as asynchronous as possible; for instance, in Transport implementations based on some heavy-weight underlying network protocol (TCP, ssh), a call to connect should be asynchronous when a heavyweight connection has already been established.

• newMulticastGroup :: IO (Either (TransportError NewMulticastGroupErrorCode) MulticastGroup)

  Create a new multicast group.

• resolveMulticastGroup :: MulticastAddress -> IO (Either (TransportError ResolveMulticastGroupErrorCode) MulticastGroup)

  Resolve an address to a multicast group.

• closeEndPoint :: IO ()

  Close the endpoint

data Connection

Lightweight connection to an endpoint.

Constructors

Connection

Fields

• send :: [ByteString] -> IO (Either (TransportError SendErrorCode) ())

  Send a message on this connection.

  send provides vectored I/O, and allows multiple data segments to be sent using a single call (cf. sendMany). Note that this segment structure is entirely unrelated to the segment structure returned by a Received event.

• close :: IO ()

  Close the connection.

data Event

Event on an endpoint.

Constructors

Received !ConnectionId [ByteString]

Received a message

ConnectionClosed !ConnectionId

Connection closed

ConnectionOpened !ConnectionId Reliability EndPointAddress

Connection opened

ConnectionIds need not be allocated contiguously.

ReceivedMulticast MulticastAddress [ByteString]

Received multicast

EndPointClosed

The endpoint got closed (manually, by a call to closeEndPoint or closeTransport)

ErrorEvent (TransportError EventErrorCode)

An error occurred

Instances

Generic Event

Defined in Network.Transport

Associated Types

type Rep Event

Defined in Network.Transport

type Rep Event = D1 ('MetaData "Event" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'False) ((C1 ('MetaCons "Received" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'SourceUnpack 'SourceStrict 'DecidedStrict) (Rec0 ConnectionId) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ByteString])) :+: (C1 ('MetaCons "ConnectionClosed" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'SourceUnpack 'SourceStrict 'DecidedStrict) (Rec0 ConnectionId)) :+: C1 ('MetaCons "ConnectionOpened" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'SourceUnpack 'SourceStrict 'DecidedStrict) (Rec0 ConnectionId) :*: (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Reliability) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 EndPointAddress))))) :+: (C1 ('MetaCons "ReceivedMulticast" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 MulticastAddress) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ByteString])) :+: (C1 ('MetaCons "EndPointClosed" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "ErrorEvent" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (TransportError EventErrorCode))))))

Methods

from :: Event -> Rep Event x

to :: Rep Event x -> Event

Show Event

Defined in Network.Transport

Methods

showsPrec :: Int -> Event -> ShowS

show :: Event -> String

showList :: [Event] -> ShowS

Binary Event

Defined in Network.Transport

Methods

put :: Event -> Put

get :: Get Event

putList :: [Event] -> Put

Eq Event

Defined in Network.Transport

Methods

(==) :: Event -> Event -> Bool

(/=) :: Event -> Event -> Bool

type Rep Event

Defined in Network.Transport

type Rep Event = D1 ('MetaData "Event" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'False) ((C1 ('MetaCons "Received" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'SourceUnpack 'SourceStrict 'DecidedStrict) (Rec0 ConnectionId) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ByteString])) :+: (C1 ('MetaCons "ConnectionClosed" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'SourceUnpack 'SourceStrict 'DecidedStrict) (Rec0 ConnectionId)) :+: C1 ('MetaCons "ConnectionOpened" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'SourceUnpack 'SourceStrict 'DecidedStrict) (Rec0 ConnectionId) :*: (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Reliability) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 EndPointAddress))))) :+: (C1 ('MetaCons "ReceivedMulticast" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 MulticastAddress) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ByteString])) :+: (C1 ('MetaCons "EndPointClosed" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "ErrorEvent" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (TransportError EventErrorCode))))))

type ConnectionId = Word64

Connection data ConnectHintsIDs enable receivers to distinguish one connection from another.

data Reliability

Reliability guarantees of a connection.

Constructors

ReliableOrdered

ReliableUnordered

Unreliable

Instances

Generic Reliability

Defined in Network.Transport

Associated Types

type Rep Reliability

Defined in Network.Transport

type Rep Reliability = D1 ('MetaData "Reliability" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'False) (C1 ('MetaCons "ReliableOrdered" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "ReliableUnordered" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "Unreliable" 'PrefixI 'False) (U1 :: Type -> Type)))

Methods

from :: Reliability -> Rep Reliability x

to :: Rep Reliability x -> Reliability

Show Reliability

Defined in Network.Transport

Methods

showsPrec :: Int -> Reliability -> ShowS

show :: Reliability -> String

showList :: [Reliability] -> ShowS

Binary Reliability

Defined in Network.Transport

Methods

put :: Reliability -> Put

get :: Get Reliability

putList :: [Reliability] -> Put

Eq Reliability

Defined in Network.Transport

Methods

(==) :: Reliability -> Reliability -> Bool

(/=) :: Reliability -> Reliability -> Bool

type Rep Reliability

Defined in Network.Transport

type Rep Reliability = D1 ('MetaData "Reliability" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'False) (C1 ('MetaCons "ReliableOrdered" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "ReliableUnordered" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "Unreliable" 'PrefixI 'False) (U1 :: Type -> Type)))

data MulticastGroup

Multicast group.

Constructors

MulticastGroup

Fields

• multicastAddress :: MulticastAddress

  EndPointAddress of the multicast group.

• deleteMulticastGroup :: IO ()

  Delete the multicast group completely.

• maxMsgSize :: Maybe Int

  Maximum message size that we can send to this group.

• multicastSend :: [ByteString] -> IO ()

  Send a message to the group.

• multicastSubscribe :: IO ()

  Subscribe to the given multicast group (to start receiving messages from the group).

• multicastUnsubscribe :: IO ()

  Unsubscribe from the given multicast group (to stop receiving messages from the group).

• multicastClose :: IO ()

  Close the group (that is, indicate you no longer wish to send to the group).

newtype EndPointAddress

EndPointAddress of an endpoint.

Constructors

EndPointAddress

Fields

• endPointAddressToByteString :: ByteString

Instances

Data EndPointAddress

Defined in Network.Transport

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> EndPointAddress -> c EndPointAddress

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c EndPointAddress

toConstr :: EndPointAddress -> Constr

dataTypeOf :: EndPointAddress -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c EndPointAddress)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c EndPointAddress)

gmapT :: (forall b. Data b => b -> b) -> EndPointAddress -> EndPointAddress

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> EndPointAddress -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> EndPointAddress -> r

gmapQ :: (forall d. Data d => d -> u) -> EndPointAddress -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> EndPointAddress -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> EndPointAddress -> m EndPointAddress

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> EndPointAddress -> m EndPointAddress

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> EndPointAddress -> m EndPointAddress

Show EndPointAddress

Defined in Network.Transport

Methods

showsPrec :: Int -> EndPointAddress -> ShowS

show :: EndPointAddress -> String

showList :: [EndPointAddress] -> ShowS

Binary EndPointAddress

Defined in Network.Transport

Methods

put :: EndPointAddress -> Put

get :: Get EndPointAddress

putList :: [EndPointAddress] -> Put

NFData EndPointAddress

Defined in Network.Transport

Methods

rnf :: EndPointAddress -> ()

Eq EndPointAddress

Defined in Network.Transport

Methods

(==) :: EndPointAddress -> EndPointAddress -> Bool

(/=) :: EndPointAddress -> EndPointAddress -> Bool

Ord EndPointAddress

Defined in Network.Transport

Methods

compare :: EndPointAddress -> EndPointAddress -> Ordering

(<) :: EndPointAddress -> EndPointAddress -> Bool

(<=) :: EndPointAddress -> EndPointAddress -> Bool

(>) :: EndPointAddress -> EndPointAddress -> Bool

(>=) :: EndPointAddress -> EndPointAddress -> Bool

max :: EndPointAddress -> EndPointAddress -> EndPointAddress

min :: EndPointAddress -> EndPointAddress -> EndPointAddress

Hashable EndPointAddress

Defined in Network.Transport

Methods

hashWithSalt :: Int -> EndPointAddress -> Int

hash :: EndPointAddress -> Int

newtype MulticastAddress

EndPointAddress of a multicast group.

Constructors

MulticastAddress

Fields

• multicastAddressToByteString :: ByteString

Instances

Generic MulticastAddress

Defined in Network.Transport

Associated Types

type Rep MulticastAddress

Defined in Network.Transport

type Rep MulticastAddress = D1 ('MetaData "MulticastAddress" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'True) (C1 ('MetaCons "MulticastAddress" 'PrefixI 'True) (S1 ('MetaSel ('Just "multicastAddressToByteString") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 ByteString)))

Methods

from :: MulticastAddress -> Rep MulticastAddress x

to :: Rep MulticastAddress x -> MulticastAddress

Show MulticastAddress

Defined in Network.Transport

Methods

showsPrec :: Int -> MulticastAddress -> ShowS

show :: MulticastAddress -> String

showList :: [MulticastAddress] -> ShowS

Binary MulticastAddress

Defined in Network.Transport

Methods

put :: MulticastAddress -> Put

get :: Get MulticastAddress

putList :: [MulticastAddress] -> Put

Eq MulticastAddress

Defined in Network.Transport

Methods

(==) :: MulticastAddress -> MulticastAddress -> Bool

(/=) :: MulticastAddress -> MulticastAddress -> Bool

Ord MulticastAddress

Defined in Network.Transport

Methods

compare :: MulticastAddress -> MulticastAddress -> Ordering

(<) :: MulticastAddress -> MulticastAddress -> Bool

(<=) :: MulticastAddress -> MulticastAddress -> Bool

(>) :: MulticastAddress -> MulticastAddress -> Bool

(>=) :: MulticastAddress -> MulticastAddress -> Bool

max :: MulticastAddress -> MulticastAddress -> MulticastAddress

min :: MulticastAddress -> MulticastAddress -> MulticastAddress

type Rep MulticastAddress

Defined in Network.Transport

type Rep MulticastAddress = D1 ('MetaData "MulticastAddress" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'True) (C1 ('MetaCons "MulticastAddress" 'PrefixI 'True) (S1 ('MetaSel ('Just "multicastAddressToByteString") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 ByteString)))

Hints

data ConnectHints

Hints used by connect

Constructors

ConnectHints

Fields

• connectTimeout :: Maybe Int

defaultConnectHints :: ConnectHints

Default hints for connecting

Error codes

data TransportError error

Errors returned by Network.Transport API functions consist of an error code and a human readable description of the problem

Constructors

TransportError error String

Instances

(Typeable err, Show err) => Exception (TransportError err)

Although the functions in the transport API never throw TransportErrors (but return them explicitly), application code may want to turn these into exceptions.

Defined in Network.Transport

Methods

toException :: TransportError err -> SomeException

fromException :: SomeException -> Maybe (TransportError err)

displayException :: TransportError err -> String

Generic (TransportError error)

Defined in Network.Transport

Associated Types

type Rep (TransportError error)

Defined in Network.Transport

type Rep (TransportError error) = D1 ('MetaData "TransportError" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'False) (C1 ('MetaCons "TransportError" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 error) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 String)))

Methods

from :: TransportError error -> Rep (TransportError error) x

to :: Rep (TransportError error) x -> TransportError error

Show error => Show (TransportError error)

Defined in Network.Transport

Methods

showsPrec :: Int -> TransportError error -> ShowS

show :: TransportError error -> String

showList :: [TransportError error] -> ShowS

Binary error => Binary (TransportError error)

Defined in Network.Transport

Methods

put :: TransportError error -> Put

get :: Get (TransportError error)

putList :: [TransportError error] -> Put

Eq error => Eq (TransportError error)

When comparing errors we ignore the human-readable strings

Defined in Network.Transport

Methods

(==) :: TransportError error -> TransportError error -> Bool

(/=) :: TransportError error -> TransportError error -> Bool

type Rep (TransportError error)

Defined in Network.Transport

type Rep (TransportError error) = D1 ('MetaData "TransportError" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'False) (C1 ('MetaCons "TransportError" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 error) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 String)))

data NewEndPointErrorCode

Errors during the creation of an endpoint

Constructors

NewEndPointInsufficientResources

Not enough resources

NewEndPointFailed

Failed for some other reason

Instances

Show NewEndPointErrorCode

Defined in Network.Transport

Methods

showsPrec :: Int -> NewEndPointErrorCode -> ShowS

show :: NewEndPointErrorCode -> String

showList :: [NewEndPointErrorCode] -> ShowS

Eq NewEndPointErrorCode

Defined in Network.Transport

Methods

(==) :: NewEndPointErrorCode -> NewEndPointErrorCode -> Bool

(/=) :: NewEndPointErrorCode -> NewEndPointErrorCode -> Bool

data ConnectErrorCode

Connection failure

Constructors

ConnectNotFound

Could not resolve the address

ConnectInsufficientResources

Insufficient resources (for instance, no more sockets available)

ConnectTimeout

Timeout

ConnectFailed

Failed for other reasons (including syntax error)

Instances

Show ConnectErrorCode

Defined in Network.Transport

Methods

showsPrec :: Int -> ConnectErrorCode -> ShowS

show :: ConnectErrorCode -> String

showList :: [ConnectErrorCode] -> ShowS

Eq ConnectErrorCode

Defined in Network.Transport

Methods

(==) :: ConnectErrorCode -> ConnectErrorCode -> Bool

(/=) :: ConnectErrorCode -> ConnectErrorCode -> Bool

data NewMulticastGroupErrorCode

Failure during the creation of a new multicast group

Constructors

NewMulticastGroupInsufficientResources

Insufficient resources

NewMulticastGroupFailed

Failed for some other reason

NewMulticastGroupUnsupported

Not all transport implementations support multicast

Instances

Show NewMulticastGroupErrorCode

Defined in Network.Transport

Methods

showsPrec :: Int -> NewMulticastGroupErrorCode -> ShowS

show :: NewMulticastGroupErrorCode -> String

showList :: [NewMulticastGroupErrorCode] -> ShowS

Eq NewMulticastGroupErrorCode

Defined in Network.Transport

Methods

(==) :: NewMulticastGroupErrorCode -> NewMulticastGroupErrorCode -> Bool

(/=) :: NewMulticastGroupErrorCode -> NewMulticastGroupErrorCode -> Bool

data ResolveMulticastGroupErrorCode

Failure during the resolution of a multicast group

Constructors

ResolveMulticastGroupNotFound

Multicast group not found

ResolveMulticastGroupFailed

Failed for some other reason (including syntax error)

ResolveMulticastGroupUnsupported

Not all transport implementations support multicast

Instances

Show ResolveMulticastGroupErrorCode

Defined in Network.Transport

Methods

showsPrec :: Int -> ResolveMulticastGroupErrorCode -> ShowS

show :: ResolveMulticastGroupErrorCode -> String

showList :: [ResolveMulticastGroupErrorCode] -> ShowS

Eq ResolveMulticastGroupErrorCode

Defined in Network.Transport

Methods

(==) :: ResolveMulticastGroupErrorCode -> ResolveMulticastGroupErrorCode -> Bool

(/=) :: ResolveMulticastGroupErrorCode -> ResolveMulticastGroupErrorCode -> Bool

data SendErrorCode

Failure during sending a message

Constructors

SendClosed

Connection was closed

SendFailed

Send failed for some other reason

Instances

Show SendErrorCode

Defined in Network.Transport

Methods

showsPrec :: Int -> SendErrorCode -> ShowS

show :: SendErrorCode -> String

showList :: [SendErrorCode] -> ShowS

Eq SendErrorCode

Defined in Network.Transport

Methods

(==) :: SendErrorCode -> SendErrorCode -> Bool

(/=) :: SendErrorCode -> SendErrorCode -> Bool

data EventErrorCode

Error codes used when reporting errors to endpoints (through receive)

Constructors

EventEndPointFailed

Failure of the entire endpoint

EventTransportFailed

Transport-wide fatal error

EventConnectionLost EndPointAddress

We lost connection to another endpoint

Although Network.Transport provides multiple independent lightweight connections between endpoints, those connections cannot fail independently: once one connection has failed, all connections, in both directions, must now be considered to have failed; they fail as a "bundle" of connections, with only a single "bundle" of connections per endpoint at any point in time.

That is, suppose there are multiple connections in either direction between endpoints A and B, and A receives a notification that it has lost contact with B. Then A must not be able to send any further messages to B on existing connections.

Although B may not realize immediately that its connection to A has been broken, messages sent by B on existing connections should not be delivered, and B must eventually get an EventConnectionLost message, too.

Moreover, this event must be posted before A has successfully reconnected (in other words, if B notices a reconnection attempt from A, it must post the EventConnectionLost before acknowledging the connection from A) so that B will not receive events about new connections or incoming messages from A without realizing that it got disconnected.

If B attempts to establish another connection to A before it realized that it got disconnected from A then it's okay for this connection attempt to fail, and the EventConnectionLost to be posted at that point, or for the EventConnectionLost to be posted and for the new connection to be considered the first connection of the "new bundle".

Instances

Generic EventErrorCode

Defined in Network.Transport

Associated Types

type Rep EventErrorCode

Defined in Network.Transport

type Rep EventErrorCode = D1 ('MetaData "EventErrorCode" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'False) (C1 ('MetaCons "EventEndPointFailed" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "EventTransportFailed" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "EventConnectionLost" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 EndPointAddress))))

Methods

from :: EventErrorCode -> Rep EventErrorCode x

to :: Rep EventErrorCode x -> EventErrorCode

Show EventErrorCode

Defined in Network.Transport

Methods

showsPrec :: Int -> EventErrorCode -> ShowS

show :: EventErrorCode -> String

showList :: [EventErrorCode] -> ShowS

Binary EventErrorCode

Defined in Network.Transport

Methods

put :: EventErrorCode -> Put

get :: Get EventErrorCode

putList :: [EventErrorCode] -> Put

Eq EventErrorCode

Defined in Network.Transport

Methods

(==) :: EventErrorCode -> EventErrorCode -> Bool

(/=) :: EventErrorCode -> EventErrorCode -> Bool

type Rep EventErrorCode

Defined in Network.Transport

type Rep EventErrorCode = D1 ('MetaData "EventErrorCode" "Network.Transport" "network-transport-0.5.7-1YdNpZpLcpdHoYUipKag3Y" 'False) (C1 ('MetaCons "EventEndPointFailed" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "EventTransportFailed" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "EventConnectionLost" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 EndPointAddress))))