| Safe Haskell | None |
|---|---|
| Language | Haskell98 |
Network.Transport.Internal
Description
Internal functions
- encodeInt32 :: Enum a => a -> ByteString
- decodeInt32 :: Num a => ByteString -> a
- encodeInt16 :: Enum a => a -> ByteString
- decodeInt16 :: Num a => ByteString -> a
- prependLength :: [ByteString] -> [ByteString]
- mapIOException :: Exception e => (IOException -> e) -> IO a -> IO a
- tryIO :: MonadIO m => IO a -> m (Either IOException a)
- tryToEnum :: (Enum a, Bounded a) => Int -> Maybe a
- timeoutMaybe :: Exception e => Maybe Int -> e -> IO a -> IO a
- asyncWhenCancelled :: forall a. (a -> IO ()) -> IO a -> IO a
- void :: Monad m => m a -> m ()
- forkIOWithUnmask :: ((forall a. IO a -> IO a) -> IO ()) -> IO ThreadId
- tlog :: MonadIO m => String -> m ()
Encoders/decoders
encodeInt32 :: Enum a => a -> ByteString Source #
Serialize 32-bit to network byte order
decodeInt32 :: Num a => ByteString -> a Source #
Deserialize 32-bit from network byte order Throws an IO exception if this is not a valid integer.
encodeInt16 :: Enum a => a -> ByteString Source #
Serialize 16-bit to network byte order
decodeInt16 :: Num a => ByteString -> a Source #
Deserialize 16-bit from network byte order Throws an IO exception if this is not a valid integer
prependLength :: [ByteString] -> [ByteString] Source #
Prepend a list of bytestrings with their total length
Miscellaneous abstractions
mapIOException :: Exception e => (IOException -> e) -> IO a -> IO a Source #
Translate exceptions that arise in IO computations
tryIO :: MonadIO m => IO a -> m (Either IOException a) Source #
Like try, but lifted and specialized to IOExceptions
timeoutMaybe :: Exception e => Maybe Int -> e -> IO a -> IO a Source #
If the timeout value is not Nothing, wrap the given computation with a timeout and it if times out throw the specified exception. Identity otherwise.
asyncWhenCancelled :: forall a. (a -> IO ()) -> IO a -> IO a Source #
asyncWhenCancelled g f runs f in a separate thread and waits for it
to complete. If f throws an exception we catch it and rethrow it in the
current thread. If the current thread is interrupted before f completes,
we run the specified clean up handler (if f throws an exception we assume
that no cleanup is necessary).
Replicated functionality from "base"
forkIOWithUnmask :: ((forall a. IO a -> IO a) -> IO ()) -> IO ThreadId Source #
This was introduced in "base" some time after 7.0.4