[Haskell-cafe] announce: Glome.hs raytracer

[Bulat Ziganshin]

Hello Andrew,

Thursday, March 27, 2008, 12:27:47 PM, you wrote:

>> plus a b = unsafePerformIO (modifyIORef counter (+1)) `seq` a+b
> Erm... might it be better to use an MVar? (To avoid lost updates if
> there are multiple render threads.)

you are right, IORef is appropriate only for single-threaded program


-- 
Best regards,
 Bulat                            mailto:Bulat.Ziganshin at gmail.com