module System.Directory.Internal.C_utimensat where
import Prelude ()
import System.Directory.Internal.Prelude
import Data.Time.Clock.POSIX (POSIXTime)
data CTimeSpec = CTimeSpec EpochTime CLong
instance Storable CTimeSpec where
sizeOf _ = (8)
alignment _ = (4)
poke p (CTimeSpec sec nsec) = do
((\hsc_ptr -> pokeByteOff hsc_ptr 0)) p sec
((\hsc_ptr -> pokeByteOff hsc_ptr 4)) p nsec
peek p = do
sec <- (\hsc_ptr -> peekByteOff hsc_ptr 0) p
nsec <- (\hsc_ptr -> peekByteOff hsc_ptr 4) p
return (CTimeSpec sec nsec)
c_AT_FDCWD :: CInt
c_AT_FDCWD = (100)
utimeOmit :: CTimeSpec
utimeOmit = CTimeSpec (CTime 0) (1073741822)
toCTimeSpec :: POSIXTime -> CTimeSpec
toCTimeSpec t = CTimeSpec (CTime sec) (truncate $ 10 ^ (9 :: Int) * frac)
where
(sec, frac) = if frac' < 0 then (sec' 1, frac' + 1) else (sec', frac')
(sec', frac') = properFraction (toRational t)
foreign import ccall "utimensat" c_utimensat
:: CInt -> CString -> Ptr CTimeSpec -> CInt -> IO CInt