| Safe Haskell | None |
|---|---|
| Language | Haskell98 |
Control.Distributed.Process.Extras.Internal.Unsafe
Description
If you don't know exactly what this module is for and precisely how to use the types within, you should move on, quickly!
- data PCopy a
- pCopy :: Typeable a => a -> PCopy a
- matchP :: Typeable m => Match (Maybe m)
- matchChanP :: Typeable m => ReceivePort (PCopy m) -> Match m
- pUnwrap :: Typeable m => Message -> Process (Maybe m)
- data InputStream a = Null
- newInputStream :: forall a. Typeable a => Either (ReceivePort a) (STM a) -> InputStream a
- matchInputStream :: InputStream a -> Match a
- readInputStream :: Serializable a => InputStream a -> Process a
- data InvalidBinaryShim = InvalidBinaryShim
Copying non-serializable data
pCopy :: Typeable a => a -> PCopy a Source
Wrap any Typeable datum in a PCopy. We hide the constructor to
discourage arbitrary uses of the type, since PCopy is a specialised
and potentially dangerous construct.
matchP :: Typeable m => Match (Maybe m) Source
Matches on PCopy m and returns the m within.
This potentially allows us to bypass serialization (and the type constraints
it enforces) for local message passing (i.e., with UnencodedMessage data),
since PCopy is just a shim.
matchChanP :: Typeable m => ReceivePort (PCopy m) -> Match m Source
Matches on a TypedChannel (PCopy a).
pUnwrap :: Typeable m => Message -> Process (Maybe m) Source
Given a raw Message, attempt to unwrap a Typeable datum from
an enclosing PCopy wrapper.
Arbitrary (unmanaged) message streams
data InputStream a Source
A generic input channel that can be read from in the same fashion
as a typed channel (i.e., ReceivePort). To read from an input stream
in isolation, see readInputStream. To compose an InputStream with
reads on a process' mailbox (and/or typed channels), see matchInputStream.
Constructors
| Null |
newInputStream :: forall a. Typeable a => Either (ReceivePort a) (STM a) -> InputStream a Source
Create a new InputStream.
matchInputStream :: InputStream a -> Match a Source
Constructs a Match for a given InputChannel.
readInputStream :: Serializable a => InputStream a -> Process a Source
Read from an InputStream. This is a blocking operation.