Copyright	(c) 2019 Composewell Technologies
License	BSD3
Maintainer	streamly@composewell.com
Stability	experimental
Portability	GHC
Safe Haskell	None
Language	Haskell2010

Streamly.Internal.System.IOVec

Description

Low level IO routines interfacing the operating system.

Synopsis

data IOVec = IOVec {
- iovBase :: !(Ptr Word8)
- iovLen :: !Word64
}
c_writev :: CInt -> Ptr IOVec -> CInt -> IO CSsize
c_safe_writev :: CInt -> Ptr IOVec -> CInt -> IO CSsize
groupIOVecsOf :: MonadIO m => Int -> Int -> Stream m (Array a) -> Stream m (Array IOVec)
groupIOVecsOfMut :: MonadIO m => Int -> Int -> Stream m (Array a) -> Stream m (Array IOVec)

Documentation

data IOVec Source #

Constructors

IOVec
Fields iovBase :: !(Ptr Word8) iovLen :: !Word64

Instances

Instances details

Eq IOVec Source #
Instance details Defined in Streamly.Internal.System.IOVec.Type Methods (==) :: IOVec -> IOVec -> Bool # (/=) :: IOVec -> IOVec -> Bool #
Show IOVec Source #
Instance details Defined in Streamly.Internal.System.IOVec.Type Methods showsPrec :: Int -> IOVec -> ShowS # show :: IOVec -> String # showList :: [IOVec] -> ShowS #
Storable IOVec Source #
Instance details Defined in Streamly.Internal.System.IOVec.Type Methods sizeOf :: IOVec -> Int # alignment :: IOVec -> Int # peekElemOff :: Ptr IOVec -> Int -> IO IOVec # pokeElemOff :: Ptr IOVec -> Int -> IOVec -> IO () # peekByteOff :: Ptr b -> Int -> IO IOVec # pokeByteOff :: Ptr b -> Int -> IOVec -> IO () # peek :: Ptr IOVec -> IO IOVec # poke :: Ptr IOVec -> IOVec -> IO () #

c_writev :: CInt -> Ptr IOVec -> CInt -> IO CSsize Source #

c_safe_writev :: CInt -> Ptr IOVec -> CInt -> IO CSsize Source #

groupIOVecsOf :: MonadIO m => Int -> Int -> Stream m (Array a) -> Stream m (Array IOVec) Source #

groupIOVecsOf maxBytes maxEntries groups arrays in the incoming stream to create a stream of IOVec arrays with a maximum of maxBytes bytes in each array and a maximum of maxEntries entries in each array.

Since: 0.7.0

groupIOVecsOfMut :: MonadIO m => Int -> Int -> Stream m (Array a) -> Stream m (Array IOVec) Source #

groupIOVecsOf maxBytes maxEntries groups arrays in the incoming stream to create a stream of IOVec arrays with a maximum of maxBytes bytes in each array and a maximum of maxEntries entries in each array.

Since: 0.7.0