Safe Haskell	None
Language	Haskell98

Data.Streaming.Network

Contents

Types
Functions
- General
- TCP
- UDP
- Unix

Synopsis

data ServerSettings
data ClientSettings
data HostPreference
data Message = Message {
- msgData :: !ByteString
- msgSender :: !SockAddr
}
data AppData
data ServerSettingsUnix
data ClientSettingsUnix
data AppDataUnix
serverSettingsTCP :: Int -> HostPreference -> ServerSettings
serverSettingsTCPSocket :: Socket -> ServerSettings
clientSettingsTCP :: Int -> ByteString -> ClientSettings
serverSettingsUDP :: Int -> HostPreference -> ServerSettings
clientSettingsUDP :: Int -> ByteString -> ClientSettings
serverSettingsUnix :: FilePath -> ServerSettingsUnix
clientSettingsUnix :: FilePath -> ClientSettingsUnix
message :: ByteString -> SockAddr -> Message
class HasPort a where
- portLens :: Functor f => (Int -> f Int) -> a -> f a
class HasAfterBind a where
- afterBindLens :: Functor f => ((Socket -> IO ()) -> f (Socket -> IO ())) -> a -> f a
class HasReadWrite a where
- readLens :: Functor f => (IO ByteString -> f (IO ByteString)) -> a -> f a
- writeLens :: Functor f => ((ByteString -> IO ()) -> f (ByteString -> IO ())) -> a -> f a
class HasReadBufferSize a where
- readBufferSizeLens :: Functor f => (Int -> f Int) -> a -> f a
class HasPath a where
- pathLens :: Functor f => (FilePath -> f FilePath) -> a -> f a
setPort :: HasPort a => Int -> a -> a
setHost :: ByteString -> ClientSettings -> ClientSettings
setAddrFamily :: Family -> ClientSettings -> ClientSettings
setAfterBind :: HasAfterBind a => (Socket -> IO ()) -> a -> a
setNeedLocalAddr :: Bool -> ServerSettings -> ServerSettings
setReadBufferSize :: HasReadBufferSize a => Int -> a -> a
setPath :: HasPath a => FilePath -> a -> a
getPort :: HasPort a => a -> Int
getHost :: ClientSettings -> ByteString
getAddrFamily :: ClientSettings -> Family
getAfterBind :: HasAfterBind a => a -> Socket -> IO ()
getNeedLocalAddr :: ServerSettings -> Bool
getReadBufferSize :: HasReadBufferSize a => a -> Int
getPath :: HasPath a => a -> FilePath
appRead :: HasReadWrite a => a -> IO ByteString
appWrite :: HasReadWrite a => a -> ByteString -> IO ()
appSockAddr :: AppData -> SockAddr
appLocalAddr :: AppData -> Maybe SockAddr
appCloseConnection :: AppData -> IO ()
appRawSocket :: AppData -> Maybe Socket
bindPortGen :: SocketType -> Int -> HostPreference -> IO Socket
bindPortGenEx :: [(SocketOption, Int)] -> SocketType -> Int -> HostPreference -> IO Socket
bindRandomPortGen :: SocketType -> HostPreference -> IO (Int, Socket)
getSocketGen :: SocketType -> String -> Int -> IO (Socket, AddrInfo)
getSocketFamilyGen :: SocketType -> String -> Int -> Family -> IO (Socket, AddrInfo)
acceptSafe :: Socket -> IO (Socket, SockAddr)
unassignedPorts :: UArray Int Int
getUnassignedPort :: IO Int
bindPortTCP :: Int -> HostPreference -> IO Socket
bindRandomPortTCP :: HostPreference -> IO (Int, Socket)
getSocketTCP :: ByteString -> Int -> IO (Socket, SockAddr)
getSocketFamilyTCP :: ByteString -> Int -> Family -> IO (Socket, SockAddr)
safeRecv :: Socket -> Int -> IO ByteString
runTCPServer :: ServerSettings -> (AppData -> IO ()) -> IO a
runTCPClient :: ClientSettings -> (AppData -> IO a) -> IO a
type ConnectionHandle = Socket -> SockAddr -> Maybe SockAddr -> IO ()
runTCPServerWithHandle :: ServerSettings -> ConnectionHandle -> IO a
bindPortUDP :: Int -> HostPreference -> IO Socket
bindRandomPortUDP :: HostPreference -> IO (Int, Socket)
getSocketUDP :: String -> Int -> IO (Socket, AddrInfo)
bindPath :: FilePath -> IO Socket
getSocketUnix :: FilePath -> IO Socket
runUnixServer :: ServerSettingsUnix -> (AppDataUnix -> IO ()) -> IO a
runUnixClient :: ClientSettingsUnix -> (AppDataUnix -> IO a) -> IO a

Types

data ServerSettings Source #

Settings for a TCP server. It takes a port to listen on, and an optional hostname to bind to.

Instances

HasReadBufferSize ServerSettings Source #	Since 0.1.13
Instance details Defined in Data.Streaming.Network Methods readBufferSizeLens :: Functor f => (Int -> f Int) -> ServerSettings -> f ServerSettings Source #
HasAfterBind ServerSettings Source #
Instance details Defined in Data.Streaming.Network Methods afterBindLens :: Functor f => ((Socket -> IO ()) -> f (Socket -> IO ())) -> ServerSettings -> f ServerSettings Source #
HasPort ServerSettings Source #
Instance details Defined in Data.Streaming.Network Methods portLens :: Functor f => (Int -> f Int) -> ServerSettings -> f ServerSettings Source #

data ClientSettings Source #

Settings for a TCP client, specifying how to connect to the server.

Instances

HasReadBufferSize ClientSettings Source #	Since 0.1.13
Instance details Defined in Data.Streaming.Network Methods readBufferSizeLens :: Functor f => (Int -> f Int) -> ClientSettings -> f ClientSettings Source #
HasPort ClientSettings Source #
Instance details Defined in Data.Streaming.Network Methods portLens :: Functor f => (Int -> f Int) -> ClientSettings -> f ClientSettings Source #

data HostPreference Source #

Which host to bind.

Note: The IsString instance recognizes the following special values:

* means HostAny - "any IPv4 or IPv6 hostname"
*4 means HostIPv4 - "any IPv4 or IPv6 hostname, IPv4 preferred"
!4 means HostIPv4Only - "any IPv4 hostname"
*6 means HostIPv6@ - "any IPv4 or IPv6 hostname, IPv6 preferred"
!6 means HostIPv6Only - "any IPv6 hostname"

Note that the permissive * values allow binding to an IPv4 or an IPv6 hostname, which means you might be able to successfully bind to a port more times than you expect (eg once on the IPv4 localhost 127.0.0.1 and again on the IPv6 localhost 0:0:0:0:0:0:0:1).

Any other value is treated as a hostname. As an example, to bind to the IPv4 local host only, use "127.0.0.1".

Instances

Eq HostPreference Source #
Instance details Defined in Data.Streaming.Network.Internal Methods (==) :: HostPreference -> HostPreference -> Bool # (/=) :: HostPreference -> HostPreference -> Bool #
Ord HostPreference Source #
Instance details Defined in Data.Streaming.Network.Internal Methods compare :: HostPreference -> HostPreference -> Ordering # (<) :: HostPreference -> HostPreference -> Bool # (<=) :: HostPreference -> HostPreference -> Bool # (>) :: HostPreference -> HostPreference -> Bool # (>=) :: HostPreference -> HostPreference -> Bool # max :: HostPreference -> HostPreference -> HostPreference # min :: HostPreference -> HostPreference -> HostPreference #
Read HostPreference Source #
Instance details Defined in Data.Streaming.Network.Internal Methods readsPrec :: Int -> ReadS HostPreference # readList :: ReadS [HostPreference] # readPrec :: ReadPrec HostPreference # readListPrec :: ReadPrec [HostPreference] #
Show HostPreference Source #
Instance details Defined in Data.Streaming.Network.Internal Methods showsPrec :: Int -> HostPreference -> ShowS # show :: HostPreference -> String # showList :: [HostPreference] -> ShowS #
IsString HostPreference Source #
Instance details Defined in Data.Streaming.Network.Internal Methods fromString :: String -> HostPreference #

data Message Source #

Representation of a single UDP message

Constructors

Message
Fields msgData :: !ByteString msgSender :: !SockAddr

data AppData Source #

The data passed to an Application.

Instances

HasReadWrite AppData Source #
Instance details Defined in Data.Streaming.Network Methods readLens :: Functor f => (IO ByteString -> f (IO ByteString)) -> AppData -> f AppData Source # writeLens :: Functor f => ((ByteString -> IO ()) -> f (ByteString -> IO ())) -> AppData -> f AppData Source #

data ServerSettingsUnix Source #

Settings for a Unix domain sockets server.

Instances

HasReadBufferSize ServerSettingsUnix Source #	Since 0.1.13
Instance details Defined in Data.Streaming.Network Methods readBufferSizeLens :: Functor f => (Int -> f Int) -> ServerSettingsUnix -> f ServerSettingsUnix Source #
HasAfterBind ServerSettingsUnix Source #
Instance details Defined in Data.Streaming.Network Methods afterBindLens :: Functor f => ((Socket -> IO ()) -> f (Socket -> IO ())) -> ServerSettingsUnix -> f ServerSettingsUnix Source #
HasPath ServerSettingsUnix Source #
Instance details Defined in Data.Streaming.Network Methods pathLens :: Functor f => (FilePath -> f FilePath) -> ServerSettingsUnix -> f ServerSettingsUnix Source #

data ClientSettingsUnix Source #

Settings for a Unix domain sockets client.

Instances

HasReadBufferSize ClientSettingsUnix Source #	Since 0.1.14
Instance details Defined in Data.Streaming.Network Methods readBufferSizeLens :: Functor f => (Int -> f Int) -> ClientSettingsUnix -> f ClientSettingsUnix Source #
HasPath ClientSettingsUnix Source #
Instance details Defined in Data.Streaming.Network Methods pathLens :: Functor f => (FilePath -> f FilePath) -> ClientSettingsUnix -> f ClientSettingsUnix Source #

data AppDataUnix Source #

The data passed to a Unix domain sockets Application.

Instances

HasReadWrite AppDataUnix Source #
Instance details Defined in Data.Streaming.Network Methods readLens :: Functor f => (IO ByteString -> f (IO ByteString)) -> AppDataUnix -> f AppDataUnix Source # writeLens :: Functor f => ((ByteString -> IO ()) -> f (ByteString -> IO ())) -> AppDataUnix -> f AppDataUnix Source #

Smart constructors

serverSettingsTCP Source #

Arguments

:: Int	port to bind to
-> HostPreference	host binding preferences
-> ServerSettings

Smart constructor.

serverSettingsTCPSocket :: Socket -> ServerSettings Source #

Create a server settings that uses an already available listening socket. Any port and host modifications made to this value will be ignored.

Since 0.1.1

clientSettingsTCP Source #

Arguments

:: Int	port to connect to
-> ByteString	host to connect to
-> ClientSettings

Smart constructor.

serverSettingsUDP Source #

Arguments

:: Int	port to bind to
-> HostPreference	host binding preferences
-> ServerSettings

Smart constructor.

clientSettingsUDP Source #

Arguments

:: Int	port to connect to
-> ByteString	host to connect to
-> ClientSettings

Smart constructor.

serverSettingsUnix Source #

Arguments

:: FilePath	path to bind to
-> ServerSettingsUnix

Smart constructor.

clientSettingsUnix Source #

Arguments

:: FilePath	path to connect to
-> ClientSettingsUnix

Smart constructor.

message :: ByteString -> SockAddr -> Message Source #

Classes

class HasPort a where Source #

Methods

portLens :: Functor f => (Int -> f Int) -> a -> f a Source #

Instances

HasPort ClientSettings Source #
Instance details Defined in Data.Streaming.Network Methods portLens :: Functor f => (Int -> f Int) -> ClientSettings -> f ClientSettings Source #
HasPort ServerSettings Source #
Instance details Defined in Data.Streaming.Network Methods portLens :: Functor f => (Int -> f Int) -> ServerSettings -> f ServerSettings Source #

class HasAfterBind a where Source #

Methods

afterBindLens :: Functor f => ((Socket -> IO ()) -> f (Socket -> IO ())) -> a -> f a Source #

Instances

HasAfterBind ServerSettingsUnix Source #
Instance details Defined in Data.Streaming.Network Methods afterBindLens :: Functor f => ((Socket -> IO ()) -> f (Socket -> IO ())) -> ServerSettingsUnix -> f ServerSettingsUnix Source #
HasAfterBind ServerSettings Source #
Instance details Defined in Data.Streaming.Network Methods afterBindLens :: Functor f => ((Socket -> IO ()) -> f (Socket -> IO ())) -> ServerSettings -> f ServerSettings Source #

class HasReadWrite a where Source #

Methods

readLens :: Functor f => (IO ByteString -> f (IO ByteString)) -> a -> f a Source #

writeLens :: Functor f => ((ByteString -> IO ()) -> f (ByteString -> IO ())) -> a -> f a Source #

Instances

HasReadWrite AppData Source #
Instance details Defined in Data.Streaming.Network Methods readLens :: Functor f => (IO ByteString -> f (IO ByteString)) -> AppData -> f AppData Source # writeLens :: Functor f => ((ByteString -> IO ()) -> f (ByteString -> IO ())) -> AppData -> f AppData Source #
HasReadWrite AppDataUnix Source #
Instance details Defined in Data.Streaming.Network Methods readLens :: Functor f => (IO ByteString -> f (IO ByteString)) -> AppDataUnix -> f AppDataUnix Source # writeLens :: Functor f => ((ByteString -> IO ()) -> f (ByteString -> IO ())) -> AppDataUnix -> f AppDataUnix Source #

class HasReadBufferSize a where Source #

Since 0.1.13

Methods

readBufferSizeLens :: Functor f => (Int -> f Int) -> a -> f a Source #

Instances

HasReadBufferSize ClientSettingsUnix Source #	Since 0.1.14
Instance details Defined in Data.Streaming.Network Methods readBufferSizeLens :: Functor f => (Int -> f Int) -> ClientSettingsUnix -> f ClientSettingsUnix Source #
HasReadBufferSize ServerSettingsUnix Source #	Since 0.1.13
Instance details Defined in Data.Streaming.Network Methods readBufferSizeLens :: Functor f => (Int -> f Int) -> ServerSettingsUnix -> f ServerSettingsUnix Source #
HasReadBufferSize ClientSettings Source #	Since 0.1.13
Instance details Defined in Data.Streaming.Network Methods readBufferSizeLens :: Functor f => (Int -> f Int) -> ClientSettings -> f ClientSettings Source #
HasReadBufferSize ServerSettings Source #	Since 0.1.13
Instance details Defined in Data.Streaming.Network Methods readBufferSizeLens :: Functor f => (Int -> f Int) -> ServerSettings -> f ServerSettings Source #

class HasPath a where Source #

Methods

pathLens :: Functor f => (FilePath -> f FilePath) -> a -> f a Source #

Instances

HasPath ClientSettingsUnix Source #
Instance details Defined in Data.Streaming.Network Methods pathLens :: Functor f => (FilePath -> f FilePath) -> ClientSettingsUnix -> f ClientSettingsUnix Source #
HasPath ServerSettingsUnix Source #
Instance details Defined in Data.Streaming.Network Methods pathLens :: Functor f => (FilePath -> f FilePath) -> ServerSettingsUnix -> f ServerSettingsUnix Source #

Setters

setPort :: HasPort a => Int -> a -> a Source #

setHost :: ByteString -> ClientSettings -> ClientSettings Source #

setAddrFamily :: Family -> ClientSettings -> ClientSettings Source #

Set the address family for the given settings.

Since 0.1.3

setAfterBind :: HasAfterBind a => (Socket -> IO ()) -> a -> a Source #

setNeedLocalAddr :: Bool -> ServerSettings -> ServerSettings Source #

setReadBufferSize :: HasReadBufferSize a => Int -> a -> a Source #

Set buffer size used when reading from socket.

Since 0.1.13

setPath :: HasPath a => FilePath -> a -> a Source #

Getters

getPort :: HasPort a => a -> Int Source #

getHost :: ClientSettings -> ByteString Source #

getAddrFamily :: ClientSettings -> Family Source #

Get the address family for the given settings.

Since 0.1.3

getAfterBind :: HasAfterBind a => a -> Socket -> IO () Source #

getNeedLocalAddr :: ServerSettings -> Bool Source #

getReadBufferSize :: HasReadBufferSize a => a -> Int Source #

Get buffer size used when reading from socket.

Since 0.1.13

getPath :: HasPath a => a -> FilePath Source #

appRead :: HasReadWrite a => a -> IO ByteString Source #

appWrite :: HasReadWrite a => a -> ByteString -> IO () Source #

appSockAddr :: AppData -> SockAddr Source #

appLocalAddr :: AppData -> Maybe SockAddr Source #

appCloseConnection :: AppData -> IO () Source #

Close the underlying connection. One possible use case is simulating connection failures in a test suite.

Since 0.1.6

appRawSocket :: AppData -> Maybe Socket Source #

Get the raw socket for this AppData, if available.

Since 0.1.12

Functions

General

bindPortGen :: SocketType -> Int -> HostPreference -> IO Socket Source #

Attempt to bind a listening Socket on the given host/port using given SocketType. If no host is given, will use the first address available.

bindPortGenEx :: [(SocketOption, Int)] -> SocketType -> Int -> HostPreference -> IO Socket Source #

Attempt to bind a listening Socket on the given host/port using given socket options and SocketType. If no host is given, will use the first address available.

Since 0.1.17

bindRandomPortGen :: SocketType -> HostPreference -> IO (Int, Socket) Source #

Bind to a random port number. Especially useful for writing network tests.

Since 0.1.1

getSocketGen :: SocketType -> String -> Int -> IO (Socket, AddrInfo) Source #

Attempt to connect to the given host/port using given SocketType.

getSocketFamilyGen :: SocketType -> String -> Int -> Family -> IO (Socket, AddrInfo) Source #

Attempt to connect to the given hostportaddress family using given SocketType.

Since 0.1.3

acceptSafe :: Socket -> IO (Socket, SockAddr) Source #

Try to accept a connection, recovering automatically from exceptions.

As reported by Kazu against Warp, "resource exhausted (Too many open files)" may be thrown by accept(). This function will catch that exception, wait a second, and then try again.

unassignedPorts :: UArray Int Int Source #

getUnassignedPort :: IO Int Source #

Get a port from the IANA list of unassigned ports.

Internally, this function uses an IORef to cycle through the list of ports

TCP

bindPortTCP :: Int -> HostPreference -> IO Socket Source #

Attempt to bind a listening Socket on the given host/port. If no host is given, will use the first address available. maxListenQueue is topically 128 which is too short for high performance servers. So, we specify 'max 2048 maxListenQueue' to the listen queue.

bindRandomPortTCP :: HostPreference -> IO (Int, Socket) Source #

Bind a random TCP port.

See bindRandomPortGen.

Since 0.1.1

getSocketTCP :: ByteString -> Int -> IO (Socket, SockAddr) Source #

Attempt to connect to the given host/port.

getSocketFamilyTCP :: ByteString -> Int -> Family -> IO (Socket, SockAddr) Source #

Attempt to connect to the given hostportaddress family.

Since 0.1.3

safeRecv :: Socket -> Int -> IO ByteString Source #

runTCPServer :: ServerSettings -> (AppData -> IO ()) -> IO a Source #

Run an Application with the given settings. This function will create a new listening socket, accept connections on it, and spawn a new thread for each connection.

runTCPClient :: ClientSettings -> (AppData -> IO a) -> IO a Source #

Run an Application by connecting to the specified server.

type ConnectionHandle = Socket -> SockAddr -> Maybe SockAddr -> IO () Source #

runTCPServerWithHandle :: ServerSettings -> ConnectionHandle -> IO a Source #

UDP

bindPortUDP :: Int -> HostPreference -> IO Socket Source #

Attempt to bind a listening Socket on the given host/port. If no host is given, will use the first address available.

bindRandomPortUDP :: HostPreference -> IO (Int, Socket) Source #

Bind a random UDP port.

See bindRandomPortGen

Since 0.1.1

getSocketUDP :: String -> Int -> IO (Socket, AddrInfo) Source #

Attempt to connect to the given host/port.

Unix

bindPath :: FilePath -> IO Socket Source #

Attempt to bind a listening Unix domain socket at the given path.

getSocketUnix :: FilePath -> IO Socket Source #

Attempt to connect to the given Unix domain socket path.

runUnixServer :: ServerSettingsUnix -> (AppDataUnix -> IO ()) -> IO a Source #

Run an Application with the given settings. This function will create a new listening socket, accept connections on it, and spawn a new thread for each connection.

runUnixClient :: ClientSettingsUnix -> (AppDataUnix -> IO a) -> IO a Source #

Run an Application by connecting to the specified server.