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GHC 10.0.0.20260917 · lts/ghc-10.0.x · 2b27632 · 2026-10-31

Modulehttp2-5.4.8Haskell2010

Network.HTTP2.Client.Internal

Contents

Low level

Synopsis

newtype Request
newtype Response
data Config
data ClientConfig
data Settings
data Aux
data Stream
data ClientIO
value runIO

Packagehttp2-5.4.8
Exports9
LanguageHaskell2010
LicenceBSD-3-Clause
SourceInternal.hs

newtypenewtype Request

Request from client.

Constructors

Request OutObj

Instances1Show

Show RequestDefined in http-semantics-0.4.1 · Network.HTTP.Semantics.Client.Internal

newtypenewtype Response

Response from server.

Constructors

Response InpObj

Instances1Show

Show ResponseDefined in http-semantics-0.4.1 · Network.HTTP.Semantics.Client.Internal

datadata Config

HTTP/2 configuration.

Constructors

Config
- confWriteBuffer :: Buffer
  This is used only by frameSender. This MUST be freed after frameSender is terminated.
- confBufferSize :: BufferSize
  The size of the write buffer. We assume that the read buffer is the same size. So, this value is announced via SETTINGS_MAX_FRAME_SIZE to the peer.
- confSendAll :: ByteString -> IO ()
- confReadN :: Int -> IO ByteString
- confPositionReadMaker :: PositionReadMaker
- confTimeoutManager :: Manager
- confMySockAddr :: SockAddr
  This is copied into Aux, if exist, on server.
- confPeerSockAddr :: SockAddr
  This is copied into Aux, if exist, on server.
- confReadNTimeout :: Bool
- confOnInformational :: StreamId -> TokenHeaderTable -> IO ()
  Client only: called when a 1xx informational response (e.g. 103 Early Hints) is received on the given stream, ahead of the final response. No-op by default.

datadata ClientConfig

Client configuration

Constructors

ClientConfig
- scheme :: Scheme
  https or http
- authority :: Authority
  Server name
- cacheLimit :: Int
  The maximum number of incoming streams on the net
- connectionWindowSize :: WindowSize
  The window size of connection.
- settings :: Settings
  Settings

Instances2Eq, Show

Eq ClientConfigDefined in http2-5.4.8 · Network.HTTP2.Client.Run
Show ClientConfigDefined in http2-5.4.8 · Network.HTTP2.Client.Run

datadata Settings

HTTP/2 settings. See https://datatracker.ietf.org/doc/html/rfc9113#name-defined-settings.

Constructors

Settings
- headerTableSize :: Int
  SETTINGS_HEADER_TABLE_SIZE
- enablePush :: Bool
  SETTINGS_ENABLE_PUSH
- maxConcurrentStreams :: Maybe Int
  SETTINGS_MAX_CONCURRENT_STREAMS
- initialWindowSize :: WindowSize
  SETTINGS_INITIAL_WINDOW_SIZE
- maxFrameSize :: Int
  SETTINGS_MAX_FRAME_SIZE
- maxHeaderListSize :: Maybe Int
  SETTINGS_MAX_HEADER_LIST_SIZE
- pingRateLimit :: Int
  Maximum number of pings allowed per second (CVE-2019-9512)
- emptyFrameRateLimit :: Int
  Maximum number of empty data frames allowed per second (CVE-2019-9518)
- settingsRateLimit :: Int
  Maximum number of settings frames allowed per second (CVE-2019-9515)
- rstRateLimit :: Int
  Maximum number of streams reset per second, whether by the peer's RST_STREAM (CVE-2023-44487) or by ours in answer to a stream error the peer caused (CVE-2025-8671)

Instances2Eq, Show

Eq SettingsDefined in http2-5.4.8 · Network.HTTP2.H2.Settings
Show SettingsDefined in http2-5.4.8 · Network.HTTP2.H2.Settings

datadata Aux

Additional information.

Constructors

Aux
- auxPossibleClientStreams :: IO Int
  How many streams can be created without blocking.
- auxSendPing :: IO ()
  Sending a ping.

Low level

datadata Stream

Instances1Show

Show StreamDefined in http2-5.4.8 · Network.HTTP2.H2.Types

datadata ClientIO

Constructors

ClientIO
- cioMySockAddr :: SockAddr
- cioPeerSockAddr :: SockAddr
- cioWriteRequest :: Request -> IO (StreamId, Stream)
- cioReadResponse :: Stream -> IO Response
- cioWriteBytes :: ByteString -> IO ()
- cioCreateStream :: IO (StreamId, Stream)

valuerunIO :: ClientConfig -> Config -> (ClientIO -> IO (IO a)) -> IO a

Launching a receiver and a sender.