[Haskell-cafe] Replacing stdin from within Haskell

Neil Davies semanticphilosopher at gmail.com
Thu Jun 9 18:16:18 CEST 2011


That is what I thought. I'll stick with what I'm doing at present which is to use temporary files - don't want to get into separate processes which I then have to co-ordinate.



On 9 Jun 2011, at 17:01, Brandon Allbery wrote:

> On Thu, Jun 9, 2011 at 07:40, Neil Davies <semanticphilosopher at gmail.com> wrote:
>> Anyone out there got an elegant solution to being able to fork a haskell thread and replace its 'stdin' ?
> File descriptors/file handles are per process, not per thread, on
> (almost?) every OS ghc supports.  You'll need to create a full
> subprocess.

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