[Haskell-cafe] Standard implementation of asynchronous helpers?
mail at nh2.me
Sat Jan 18 15:26:51 UTC 2014
E.g. https://hackage.haskell.org/package/async ?
On Sat 18 Jan 2014 15:18:20 GMT, Tristan Seligmann wrote:
> I was wondering if a standard implementation of these helpers (or
> something similar) existed somewhere:
> startAsync :: IO a -> IO (MVar a)
> startAsync action = do
> var <- newEmptyMVar
> forkIO $ action >>= putMVar var
> return var
> wait :: MVar a -> IO a
> wait = readMVar
> I've found a few throwaway examples that implement something similar,
> and I can imagine some improvements already (I guess the MVar should
> be wrapped, for example, and some higher) but I was unable to find any
> released library that does something like this.
> Is it just too trivial for anyone to have bothered?
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