conduit-extra-1.3.0: Batteries included conduit: adapters for common libraries.

Safe Haskell | None
Language | Haskell98

Data.Conduit.Network

Contents

- Basic utilities
- Simple TCP server/client interface.
  - Server
  - Client
  - Getters
  - Setters
- Types

Synopsis

- sourceSocket :: MonadIO m => Socket -> ConduitT i ByteString m ()
- sinkSocket :: MonadIO m => Socket -> ConduitT ByteString o m ()
- data AppData
- appSource :: (HasReadWrite ad, MonadIO m) => ad -> ConduitT i ByteString m ()
- appSink :: (HasReadWrite ad, MonadIO m) => ad -> ConduitT ByteString o m ()
- appSockAddr :: AppData -> SockAddr
- appLocalAddr :: AppData -> Maybe SockAddr
- data ServerSettings
- serverSettings :: Int -> HostPreference -> ServerSettings
- runTCPServer :: ServerSettings -> (AppData -> IO ()) -> IO a
- runTCPServerWithHandle :: ServerSettings -> ConnectionHandle -> IO a
- forkTCPServer :: MonadUnliftIO m => ServerSettings -> (AppData -> m ()) -> m ThreadId
- runGeneralTCPServer :: MonadUnliftIO m => ServerSettings -> (AppData -> m ()) -> m a
- data ClientSettings
- clientSettings :: Int -> ByteString -> ClientSettings
- runTCPClient :: ClientSettings -> (AppData -> IO a) -> IO a
- runGeneralTCPClient :: MonadUnliftIO m => ClientSettings -> (AppData -> m a) -> m a
- getPort :: HasPort a => a -> Int
- getHost :: ClientSettings -> ByteString
- getAfterBind :: HasAfterBind a => a -> Socket -> IO ()
- getNeedLocalAddr :: ServerSettings -> Bool
- setPort :: HasPort a => Int -> a -> a
- setHost :: ByteString -> ClientSettings -> ClientSettings
- setAfterBind :: HasAfterBind a => (Socket -> IO ()) -> a -> a
- setNeedLocalAddr :: Bool -> ServerSettings -> ServerSettings
- data HostPreference

# Basic utilities

sourceSocket :: MonadIO m => Socket -> ConduitT i ByteString m () #

Stream data from the socket.

This function does not automatically close the socket.

Since 0.0.0

sinkSocket :: MonadIO m => Socket -> ConduitT ByteString o m () #

Stream data to the socket.

This function does not automatically close the socket.

Since 0.0.0

# Simple TCP server/client interface.

data AppData #

The data passed to an `Application`.

#### Instances

Instances details

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

appSource :: (HasReadWrite ad, MonadIO m) => ad -> ConduitT i ByteString m () #

appSink :: (HasReadWrite ad, MonadIO m) => ad -> ConduitT ByteString o m () #

appSockAddr :: AppData -> SockAddr #

appLocalAddr :: AppData -> Maybe SockAddr #

## Server

data ServerSettings #

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

#### Instances

Instances details

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

serverSettings :: Int -> HostPreference -> ServerSettings #

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

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.

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

forkTCPServer :: MonadUnliftIO m => ServerSettings -> (AppData -> m ()) -> m ThreadId #

Fork a TCP Server

Will fork the runGeneralTCPServer function but will only return from this call when the server is bound to the port and accepting incoming connections. Will return the thread id of the server

Since 1.1.4

runGeneralTCPServer :: MonadUnliftIO m => ServerSettings -> (AppData -> m ()) -> m a #

Run a general TCP server

Same as `runTCPServer`, except monad can be any instance of `MonadUnliftIO`.

Note that any changes to the monadic state performed by individual client handlers will be discarded. If you have mutable state you want to share among multiple handlers, you need to use some kind of mutable variables.

Since 1.1.3

## Client

data ClientSettings #

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

#### Instances

Instances details

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

clientSettings :: Int -> ByteString -> ClientSettings #

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

Run an `Application` by connecting to the specified server.

runGeneralTCPClient :: MonadUnliftIO m => ClientSettings -> (AppData -> m a) -> m a #

Run a general TCP client

Same as `runTCPClient`, except monad can be any instance of `MonadUnliftIO`.

Since 1.1.3

## Getters

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

getHost :: ClientSettings -> ByteString #

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

getNeedLocalAddr :: ServerSettings -> Bool #

## Setters

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

setHost :: ByteString -> ClientSettings -> ClientSettings #

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

setNeedLocalAddr :: Bool -> ServerSettings -> ServerSettings #

# Types

data HostPreference #

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

Instances details

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