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{-# LANGUAGE CPP #-}
{-# LANGUAGE UnboxedTuples #-}
{-# LANGUAGE MagicHash #-}
module GHC.Data.ByteArray
( -- * Immutable byte arrays
ByteArray
, getByteArray
, unsafeByteArrayContents
, withByteArrayContents
, sizeofByteArray
-- * Mutable byte arrays
, MutableByteArray
, getMutableByteArray
, unsafeMutableByteArrayContents
, newMutableByteArray
, newPinnedMutableByteArray
, copyByteArray
, copyAddrToMutableByteArray
, unsafeFreezeByteArray
-- * Writing
, writeWordArray
, writeWord8Array
, writeWord16Array
, writeWord32Array
, writeWord64Array
, writeIntArray
, writeInt8Array
, writeInt16Array
, writeInt32Array
, writeInt64Array
, writeCharArray
-- * Reading
, readWordArray
, readWord8Array
, readWord16Array
, readWord32Array
, readWord64Array
, readIntArray
, readInt8Array
, readInt16Array
, readInt32Array
, readInt64Array
, readCharArray
-- * Immutable indexing
, indexWordArray
, indexWord8Array
, indexWord16Array
, indexWord32Array
, indexWord64Array
, indexIntArray
, indexInt8Array
, indexInt16Array
, indexInt32Array
, indexInt64Array
, indexCharArray
) where
import GHC.Base
import GHC.Exts
import GHC.Word
import GHC.Int
import Unsafe.Coerce
data MutableByteArray = MutableByteArray { getMutableByteArray :: !(MutableByteArray# RealWorld) }
data ByteArray = ByteArray { getByteArray :: !ByteArray# }
unsafeByteArrayContents :: ByteArray -> Ptr a
unsafeByteArrayContents (ByteArray ba) = Ptr (byteArrayContents# ba)
unsafeMutableByteArrayContents :: MutableByteArray -> Ptr a
unsafeMutableByteArrayContents = unsafeByteArrayContents . unsafeCoerce
withByteArrayContents :: ByteArray -> (Ptr a -> IO b) -> IO b
withByteArrayContents (ByteArray ba) f = do
r <- f $ Ptr (byteArrayContents# ba)
IO $ \s -> case touch# ba s of s' -> (# s', () #)
return r
newMutableByteArray :: Int -> IO MutableByteArray
newMutableByteArray (I# size) = IO $ \s ->
case newByteArray# size s of
(# s', mba #) -> (# s', MutableByteArray mba #)
newPinnedMutableByteArray :: Int -> IO MutableByteArray
newPinnedMutableByteArray (I# size) = IO $ \s ->
case newPinnedByteArray# size s of
(# s', mba #) -> (# s', MutableByteArray mba #)
copyByteArray
:: ByteArray -- ^ source
-> Int -- ^ source offset
-> MutableByteArray -- ^ destination
-> Int -- ^ destination offset
-> Int -- ^ length to copy
-> IO ()
copyByteArray (ByteArray src) (I# src_ofs) (MutableByteArray dst) (I# dst_ofs) (I# len) =
IO $ \s ->
case copyByteArray# src src_ofs dst dst_ofs len s of
s' -> (# s', () #)
copyAddrToMutableByteArray :: Ptr a -> MutableByteArray -> Int -> Int -> IO ()
copyAddrToMutableByteArray (Ptr src) (MutableByteArray dst) (I# dst_ofs) (I# len) = IO $ \s ->
case copyAddrToByteArray# src dst dst_ofs len s of
s' -> (# s', () #)
unsafeFreezeByteArray
:: MutableByteArray
-> IO ByteArray
unsafeFreezeByteArray (MutableByteArray mba) = IO $ \s ->
case unsafeFreezeByteArray# mba s of
(# s', ba #) -> (# s', ByteArray ba #)
sizeofByteArray :: ByteArray -> Int
sizeofByteArray (ByteArray arr) = I# (sizeofByteArray# arr)
readWordArray :: MutableByteArray -> Int -> IO Word
readWordArray (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readWordArray# arr ix s0 of
(# s1, r #) -> (# s1, W# r #)
readWord8Array :: MutableByteArray -> Int -> IO Word8
readWord8Array (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readWord8Array# arr ix s0 of
(# s1, r #) -> (# s1, W8# r #)
readWord16Array :: MutableByteArray -> Int -> IO Word16
readWord16Array (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readWord16Array# arr ix s0 of
(# s1, r #) -> (# s1, W16# r #)
readWord32Array :: MutableByteArray -> Int -> IO Word32
readWord32Array (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readWord32Array# arr ix s0 of
(# s1, r #) -> (# s1, W32# r #)
readWord64Array :: MutableByteArray -> Int -> IO Word64
readWord64Array (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readWord64Array# arr ix s0 of
(# s1, r #) -> (# s1, W64# r #)
readIntArray :: MutableByteArray -> Int -> IO Int
readIntArray (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readIntArray# arr ix s0 of
(# s1, r #) -> (# s1, I# r #)
readInt8Array :: MutableByteArray -> Int -> IO Int8
readInt8Array (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readInt8Array# arr ix s0 of
(# s1, r #) -> (# s1, I8# r #)
readInt16Array :: MutableByteArray -> Int -> IO Int16
readInt16Array (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readInt16Array# arr ix s0 of
(# s1, r #) -> (# s1, I16# r #)
readInt32Array :: MutableByteArray -> Int -> IO Int32
readInt32Array (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readInt32Array# arr ix s0 of
(# s1, r #) -> (# s1, I32# r #)
readInt64Array :: MutableByteArray -> Int -> IO Int64
readInt64Array (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readInt64Array# arr ix s0 of
(# s1, r #) -> (# s1, I64# r #)
readCharArray :: MutableByteArray -> Int -> IO Char
readCharArray (MutableByteArray arr) (I# ix) = IO $ \s0 ->
case readCharArray# arr ix s0 of
(# s1, r #) -> (# s1, C# r #)
writeWordArray :: MutableByteArray -> Int -> Word -> IO ()
writeWordArray (MutableByteArray arr) (I# ix) (W# x) = IO $ \s0 ->
case writeWordArray# arr ix x s0 of
s1 -> (# s1, () #)
writeWord8Array :: MutableByteArray -> Int -> Word8 -> IO ()
writeWord8Array (MutableByteArray arr) (I# ix) (W8# x) = IO $ \s0 ->
case writeWord8Array# arr ix x s0 of
s1 -> (# s1, () #)
writeWord16Array :: MutableByteArray -> Int -> Word16 -> IO ()
writeWord16Array (MutableByteArray arr) (I# ix) (W16# x) = IO $ \s0 ->
case writeWord16Array# arr ix x s0 of
s1 -> (# s1, () #)
writeWord32Array :: MutableByteArray -> Int -> Word32 -> IO ()
writeWord32Array (MutableByteArray arr) (I# ix) (W32# x) = IO $ \s0 ->
case writeWord32Array# arr ix x s0 of
s1 -> (# s1, () #)
writeWord64Array :: MutableByteArray -> Int -> Word64 -> IO ()
writeWord64Array (MutableByteArray arr) (I# ix) (W64# x) = IO $ \s0 ->
case writeWord64Array# arr ix x s0 of
s1 -> (# s1, () #)
writeIntArray :: MutableByteArray -> Int -> Int -> IO ()
writeIntArray (MutableByteArray arr) (I# ix) (I# x) = IO $ \s0 ->
case writeIntArray# arr ix x s0 of
s1 -> (# s1, () #)
writeInt8Array :: MutableByteArray -> Int -> Int8 -> IO ()
writeInt8Array (MutableByteArray arr) (I# ix) (I8# x) = IO $ \s0 ->
case writeInt8Array# arr ix x s0 of
s1 -> (# s1, () #)
writeInt16Array :: MutableByteArray -> Int -> Int16 -> IO ()
writeInt16Array (MutableByteArray arr) (I# ix) (I16# x) = IO $ \s0 ->
case writeInt16Array# arr ix x s0 of
s1 -> (# s1, () #)
writeInt32Array :: MutableByteArray -> Int -> Int32 -> IO ()
writeInt32Array (MutableByteArray arr) (I# ix) (I32# x) = IO $ \s0 ->
case writeInt32Array# arr ix x s0 of
s1 -> (# s1, () #)
writeInt64Array :: MutableByteArray -> Int -> Int64 -> IO ()
writeInt64Array (MutableByteArray arr) (I# ix) (I64# x) = IO $ \s0 ->
case writeInt64Array# arr ix x s0 of
s1 -> (# s1, () #)
writeCharArray :: MutableByteArray -> Int -> Char -> IO ()
writeCharArray (MutableByteArray arr) (I# ix) (C# x) = IO $ \s0 ->
case writeCharArray# arr ix x s0 of
s1 -> (# s1, () #)
indexWordArray :: ByteArray -> Int -> Word
indexWordArray (ByteArray arr) (I# ix) =
W# (indexWordArray# arr ix)
indexWord8Array :: ByteArray -> Int -> Word8
indexWord8Array (ByteArray arr) (I# ix) =
W8# (indexWord8Array# arr ix)
indexWord16Array :: ByteArray -> Int -> Word16
indexWord16Array (ByteArray arr) (I# ix) =
W16# (indexWord16Array# arr ix)
indexWord32Array :: ByteArray -> Int -> Word32
indexWord32Array (ByteArray arr) (I# ix) =
W32# (indexWord32Array# arr ix)
indexWord64Array :: ByteArray -> Int -> Word64
indexWord64Array (ByteArray arr) (I# ix) =
W64# (indexWord64Array# arr ix)
indexIntArray :: ByteArray -> Int -> Int
indexIntArray (ByteArray arr) (I# ix) =
I# (indexIntArray# arr ix)
indexInt8Array :: ByteArray -> Int -> Int8
indexInt8Array (ByteArray arr) (I# ix) =
I8# (indexInt8Array# arr ix)
indexInt16Array :: ByteArray -> Int -> Int16
indexInt16Array (ByteArray arr) (I# ix) =
I16# (indexInt16Array# arr ix)
indexInt32Array :: ByteArray -> Int -> Int32
indexInt32Array (ByteArray arr) (I# ix) =
I32# (indexInt32Array# arr ix)
indexInt64Array :: ByteArray -> Int -> Int64
indexInt64Array (ByteArray arr) (I# ix) =
I64# (indexInt64Array# arr ix)
indexCharArray :: ByteArray -> Int -> Char
indexCharArray (ByteArray arr) (I# ix) =
C# (indexCharArray# arr ix)
|
