{-# LINE 1 "Network/Socket/ByteString/IOVec.hsc" #-}
-- | Support module for the POSIX writev system call.
{-# LINE 2 "Network/Socket/ByteString/IOVec.hsc" #-}
module Network.Socket.ByteString.IOVec
    ( IOVec(..)
    ) where

import Foreign.C.Types (CChar, CInt, CSize)
import Foreign.Ptr (Ptr)
import Foreign.Storable (Storable(..))


{-# LINE 11 "Network/Socket/ByteString/IOVec.hsc" #-}

data IOVec = IOVec
    { iovBase :: Ptr CChar
    , iovLen  :: CSize
    }

instance Storable IOVec where
  sizeOf _    = (16)
{-# LINE 19 "Network/Socket/ByteString/IOVec.hsc" #-}
  alignment _ = alignment (undefined :: CInt)

  peek p = do
    base <- ((\hsc_ptr -> peekByteOff hsc_ptr 0)) p
{-# LINE 23 "Network/Socket/ByteString/IOVec.hsc" #-}
    len  <- ((\hsc_ptr -> peekByteOff hsc_ptr 8))  p
{-# LINE 24 "Network/Socket/ByteString/IOVec.hsc" #-}
    return $ IOVec base len

  poke p iov = do
    ((\hsc_ptr -> pokeByteOff hsc_ptr 0)) p (iovBase iov)
{-# LINE 28 "Network/Socket/ByteString/IOVec.hsc" #-}
    ((\hsc_ptr -> pokeByteOff hsc_ptr 8))  p (iovLen  iov)
{-# LINE 29 "Network/Socket/ByteString/IOVec.hsc" #-}