[Haskell-cafe] Can't figure out source of race condition when
xs at xaph.net
Mon Nov 3 07:52:02 EST 2008
David Roundy wrote:
> On Sun, Nov 02, 2008 at 09:15:25PM +0100, Marc Weber wrote:
>> On Mon, Nov 03, 2008 at 01:02:12AM +1100, Rafal Kolanski wrote:
>>> Rafal Kolanski.
>> Why do you use forkIO here? It's not necessary. The process will run in
>> background on its own. ?
> It looks to me like this code requires a forkIO, not in the writing to inp,
> but rather in the reading of out and err. Otherwise, those buffers may
> fill up and your process will hang...
It seems to be as you say. Trying for a single-threaded solution to this
problem always locked up the program, until I found someone's code
snippet online using forkIO and extrapolated from that.
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