Holumbus-Distribution-0.1.0: intra- and inter-program communicationSource codeContentsIndex
Holumbus.Distribution.DValue
Portabilityportable
Stabilityexperimental
MaintainerStefan Schmidt (stefanschmidt@web.de)
Contents
datatypes
creating and closing a DValue
access a DValue
Description

Version : 0.1

This module offers the distrubted value datatype.

A DValue is like a distributed MVar, but is can only be set once on the local node. If the value is set, it cannot be changed any more.

I don't know if this is useful at all, so the implementation is not quite finished an some things could be improved.

Synopsis
data DValue a
newDValue :: Binary a => String -> a -> IO (DValue a)
newRemoteDValue :: String -> String -> IO (DValue a)
closeDValue :: DValue a -> IO ()
getDValue :: Binary a => DValue a -> IO (Maybe a)
datatypes
data DValue a Source
creating and closing a DValue
newDValue :: Binary a => String -> a -> IO (DValue a)Source
Creates new DValue on the local DNode. The first parameter is the name of the value which could be used in other processes to access this stream. If you leave it empty, a random Id will be created.
newRemoteDValue :: String -> String -> IO (DValue a)Source
Creates a new DValue. The first parameter is the name of the resource and the second one the name of the node.
closeDValue :: DValue a -> IO ()Source
Closes a DValue.
access a DValue
getDValue :: Binary a => DValue a -> IO (Maybe a)Source
Gets value. It will only access the network on the first time and my throw an exception. It returns always (Just a) but this may change in the future, so the type sticks to (Maybe a)
Produced by Haddock version 2.6.1