{-# LANGUAGE CPP #-}
module Ptr.IO
where
import Ptr.Prelude
import qualified Data.ByteString.Internal as A
import qualified Data.ByteString.Short.Internal as B
import qualified Ptr.UncheckedShifting as D
{-# INLINE peekStorable #-}
peekStorable :: Storable storable => Ptr Word8 -> IO storable
peekStorable =
{-# SCC "peekStorable" #-}
peek . castPtr
{-# INLINE peekWord8 #-}
peekWord8 :: Ptr Word8 -> IO Word8
peekWord8 =
{-# SCC "peekWord8" #-}
peekStorable
{-# INLINE peekBEWord16 #-}
peekBEWord16 :: Ptr Word8 -> IO Word16
#ifdef WORDS_BIGENDIAN
peekBEWord16 =
{-# SCC "peekBEWord16" #-}
peekStorable
#else
peekBEWord16 =
{-# SCC "peekBEWord16" #-}
fmap byteSwap16 . peekStorable
#endif
{-# INLINE peekLEWord16 #-}
peekLEWord16 :: Ptr Word8 -> IO Word16
#ifdef WORDS_BIGENDIAN
peekLEWord16 =
{-# SCC "peekLEWord16" #-}
fmap byteSwap16 . peekStorable
#else
peekLEWord16 =
{-# SCC "peekLEWord16" #-}
peekStorable
#endif
{-# INLINE peekBEWord32 #-}
peekBEWord32 :: Ptr Word8 -> IO Word32
#ifdef WORDS_BIGENDIAN
peekBEWord32 =
{-# SCC "peekBEWord32" #-}
peekStorable
#else
peekBEWord32 =
{-# SCC "peekBEWord32" #-}
fmap byteSwap32 . peekStorable
#endif
{-# INLINE peekLEWord32 #-}
peekLEWord32 :: Ptr Word8 -> IO Word32
#ifdef WORDS_BIGENDIAN
peekLEWord32 =
{-# SCC "peekLEWord32" #-}
fmap byteSwap32 . peekStorable
#else
peekLEWord32 =
{-# SCC "peekLEWord32" #-}
peekStorable
#endif
{-# INLINE peekBEWord64 #-}
peekBEWord64 :: Ptr Word8 -> IO Word64
#ifdef WORDS_BIGENDIAN
peekBEWord64 =
{-# SCC "peekBEWord64" #-}
peekStorable
#else
peekBEWord64 =
{-# SCC "peekBEWord64" #-}
fmap byteSwap64 . peekStorable
#endif
{-# INLINE peekLEWord64 #-}
peekLEWord64 :: Ptr Word8 -> IO Word64
#ifdef WORDS_BIGENDIAN
peekLEWord64 =
{-# SCC "peekLEWord64" #-}
fmap byteSwap64 . peekStorable
#else
peekLEWord64 =
{-# SCC "peekLEWord64" #-}
peekStorable
#endif
{-# INLINE peekBytes #-}
peekBytes :: Ptr Word8 -> Int -> IO ByteString
peekBytes ptr amount =
{-# SCC "peekBytes" #-}
A.create amount $ \destPtr -> A.memcpy destPtr ptr amount
{-# INLINE peekShortByteString #-}
peekShortByteString :: Ptr Word8 -> Int -> IO ShortByteString
peekShortByteString ptr amount =
B.createFromPtr ptr amount
{-# INLINE peekNullTerminatedShortByteString #-}
peekNullTerminatedShortByteString :: Ptr Word8 -> (Int -> IO ShortByteString -> IO a) -> IO a
peekNullTerminatedShortByteString ptr cont =
do
!length <- fromIntegral <$> A.c_strlen (castPtr ptr)
cont length (B.createFromPtr ptr length)
{-# INLINE pokeStorable #-}
pokeStorable :: Storable a => Ptr Word8 -> a -> IO ()
pokeStorable ptr value =
{-# SCC "pokeStorable" #-}
poke (castPtr ptr) value
{-# INLINE pokeWord8 #-}
pokeWord8 :: Ptr Word8 -> Word8 -> IO ()
pokeWord8 ptr value =
{-# SCC "pokeWord8" #-}
poke ptr value
{-# INLINE pokeWord8Off #-}
pokeWord8Off :: Ptr Word8 -> Int -> Word8 -> IO ()
pokeWord8Off ptr off value =
{-# SCC "pokeWord8Off" #-}
pokeByteOff ptr off value
{-# INLINE pokeBEWord16 #-}
pokeBEWord16 :: Ptr Word8 -> Word16 -> IO ()
#ifdef WORDS_BIGENDIAN
pokeBEWord16 =
{-# SCC "pokeBEWord16" #-}
pokeStorable
#else
pokeBEWord16 ptr value =
{-# SCC "pokeBEWord16" #-}
do
pokeStorable ptr (fromIntegral (D.shiftr_w16 value 8) :: Word8)
pokeByteOff ptr 1 (fromIntegral value :: Word8)
#endif
{-# INLINE pokeBEWord32 #-}
pokeBEWord32 :: Ptr Word8 -> Word32 -> IO ()
#ifdef WORDS_BIGENDIAN
pokeBEWord32 =
{-# SCC "pokeBEWord32" #-}
pokeStorable
#else
pokeBEWord32 ptr value =
{-# SCC "pokeBEWord32" #-}
do
pokeStorable ptr (fromIntegral (D.shiftr_w32 value 24) :: Word8)
pokeByteOff ptr 1 (fromIntegral (D.shiftr_w32 value 16) :: Word8)
pokeByteOff ptr 2 (fromIntegral (D.shiftr_w32 value 8) :: Word8)
pokeByteOff ptr 3 (fromIntegral value :: Word8)
#endif
{-# INLINE pokeBEWord64 #-}
pokeBEWord64 :: Ptr Word8 -> Word64 -> IO ()
#ifdef WORDS_BIGENDIAN
pokeBEWord64 =
{-# SCC "pokeBEWord64" #-}
pokeStorable
#else
#if WORD_SIZE_IN_BITS < 64
pokeBEWord64 ptr value =
{-# SCC "pokeBEWord64" #-}
do
pokeBEWord32 ptr (fromIntegral (D.shiftr_w64 value 32))
pokeBEWord32 (plusPtr ptr 4) (fromIntegral value)
#else
pokeBEWord64 ptr value =
{-# SCC "pokeBEWord64" #-}
do
pokeStorable ptr (fromIntegral (D.shiftr_w64 value 56) :: Word8)
pokeByteOff ptr 1 (fromIntegral (D.shiftr_w64 value 48) :: Word8)
pokeByteOff ptr 2 (fromIntegral (D.shiftr_w64 value 40) :: Word8)
pokeByteOff ptr 3 (fromIntegral (D.shiftr_w64 value 32) :: Word8)
pokeByteOff ptr 4 (fromIntegral (D.shiftr_w64 value 24) :: Word8)
pokeByteOff ptr 5 (fromIntegral (D.shiftr_w64 value 16) :: Word8)
pokeByteOff ptr 6 (fromIntegral (D.shiftr_w64 value 8) :: Word8)
pokeByteOff ptr 7 (fromIntegral value :: Word8)
#endif
#endif
{-# INLINE pokeLEWord16 #-}
pokeLEWord16 :: Ptr Word8 -> Word16 -> IO ()
#ifdef WORDS_BIGENDIAN
pokeLEWord16 p w =
{-# SCC "pokeLEWord16" #-}
do
pokeWord8 p (fromIntegral w)
pokeWord8Off p 1 (fromIntegral (D.shiftr_w16 w 8))
#else
pokeLEWord16 =
{-# SCC "pokeLEWord16" #-}
pokeStorable
#endif
{-# INLINE pokeLEWord32 #-}
pokeLEWord32 :: Ptr Word8 -> Word32 -> IO ()
#ifdef WORDS_BIGENDIAN
pokeLEWord32 p w =
{-# SCC "pokeLEWord32" #-}
do
pokeWord8 p (fromIntegral w)
pokeWord8Off p 1 (fromIntegral (D.shiftr_w32 w 8))
pokeWord8Off p 2 (fromIntegral (D.shiftr_w32 w 16))
pokeWord8Off p 3 (fromIntegral (D.shiftr_w32 w 24))
#else
pokeLEWord32 =
{-# SCC "pokeLEWord32" #-}
pokeStorable
#endif
{-# INLINE pokeLEWord64 #-}
pokeLEWord64 :: Ptr Word8 -> Word64 -> IO ()
#ifdef WORDS_BIGENDIAN
#if WORD_SIZE_IN_BITS < 64
pokeLEWord64 p w =
{-# SCC "pokeLEWord64" #-}
do
let b = fromIntegral (D.shiftr_w64 w 32) :: Word32
a = fromIntegral w :: Word32
pokeWord8 p (fromIntegral a)
pokeWord8Off p 1 (fromIntegral (D.shiftr_w32 a 8))
pokeWord8Off p 2 (fromIntegral (D.shiftr_w32 a 16))
pokeWord8Off p 3 (fromIntegral (D.shiftr_w32 a 24))
pokeWord8Off p 4 (fromIntegral b)
pokeWord8Off p 5 (fromIntegral (D.shiftr_w32 b 8))
pokeWord8Off p 6 (fromIntegral (D.shiftr_w32 b 16))
pokeWord8Off p 7 (fromIntegral (D.shiftr_w32 b 24))
#else
pokeLEWord64 p w =
{-# SCC "pokeLEWord64" #-}
do
pokeWord8 p (fromIntegral w)
pokeWord8Off p 1 (fromIntegral (D.shiftr_w64 w 8))
pokeWord8Off p 2 (fromIntegral (D.shiftr_w64 w 16))
pokeWord8Off p 3 (fromIntegral (D.shiftr_w64 w 24))
pokeWord8Off p 4 (fromIntegral (D.shiftr_w64 w 32))
pokeWord8Off p 5 (fromIntegral (D.shiftr_w64 w 40))
pokeWord8Off p 6 (fromIntegral (D.shiftr_w64 w 48))
pokeWord8Off p 7 (fromIntegral (D.shiftr_w64 w 56))
#endif
#else
pokeLEWord64 =
{-# SCC "pokeLEWord64" #-}
pokeStorable
#endif
{-# INLINE pokeBytesTrimming #-}
pokeBytesTrimming :: Ptr Word8 -> Int -> ByteString -> IO ()
pokeBytesTrimming ptr maxLength (A.PS fptr offset length) =
{-# SCC "pokeBytesTrimming" #-}
withForeignPtr fptr $ \bytesPtr -> A.memcpy ptr (plusPtr bytesPtr offset) (min length maxLength)
{-# INLINE pokeBytes #-}
pokeBytes :: Ptr Word8 -> ByteString -> IO ()
pokeBytes ptr (A.PS fptr offset length) =
{-# SCC "pokeBytes" #-}
withForeignPtr fptr $ \bytesPtr -> A.memcpy ptr (plusPtr bytesPtr offset) length