[Haskell-cafe] Re: Bug in runInteractiveProcess?
donn at drizzle.com
Thu Oct 18 02:37:16 EDT 2007
On Oct 17, 2007, at 6:11 PM, Stefan O'Rear wrote:
>> Just to be precise about it, though, there's nothing about Haskell
>> per se
>> that causes trouble with fork, right? This is a GHC
>> implementation issue.
> Forking in the presense of multiple threads is a semantic nightmare.
> Anything any Haskell implementation does is going to be wrong in at
> least two ways, so it's probably best not to try. Write your fork-
> code in C.
Forking in the presence of multiple threads is not my problem - I don't
want multiple threads. Any Haskell implementation will do fine as long
as, like C, it doesn't use threads to solve internal runtime problems.
I know that for some, the UNIX process machinery - fork, the file
execve, etc. - is an appalling and gruesome spectacle that surely
have faded away in the lovely new order of things, but it's really a
elegant system in its antique way, and UNIX (et al.) is built around
a big scale. It isn't going away.
Donn Cave, donn at drizzle.com
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