[Haskell-cafe] Can't establish subprocess communication

[Poprádi Árpád]

Hi mgampkay!

Thank You, these were the problems with my programs.

Greetings,
Árpád


On Sun, 2011-11-13 at 22:57 +0800, mgampkay wrote:
> 
> >    (hin, hout, _, p) <- runInteractiveProcess "copierer" [] Nothing
> 
> >./twowaysubprocesscomm 
> >twowaysubprocesscomm: fd:7: hGetLine: end of file
> >twowaysubprocesscomm: fd:6: hPutChar: resource vanished (Broken pipe)
> 
> Because you didn't give the right path to copierer.
> And you should hSetBuffering in copierer.hs.
> Because the handles returned by runInteractiveProcess are actually pipes that connect to copierer's stdin and stdout.
> 
>