| Re: [AD] [LNX] Allegro and popen() |
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On March 8, 2002 05:08 pm, you wrote:
> On 2002-03-07, Thomas Fjellstrom <tfjellstrom@xxxxxxxxxx> wrote:
> > On March 7, 2002 11:43 pm, you wrote:
> > > Allegro doens't work well with others...
> > > I've been trying to use popen to get the output of another program...
> > > but once allegro_init() is called popen just hangs.
> >
> > I just found that turning off pthreads makes the problem go away.
>
> Thanks for the report.
>
> It looks like it's not our fault though. Attached is a non-Allegro
> example that suffers from the same problem. The `popen' hang appears
> to happen when a thread is started from a function that is located in
> a dynamically linked library. Unless there is some magic command-line
> option that will fix it?
>
> (To run the program, you'll have to ``export LD_LIBRARY_PATH=.'')
hmmm. so pipes and pthreads don't mix? how does that work?
what does pthreads do differently than vfork?
--
Thomas Fjellstrom
tfjellstrom@xxxxxxxxxx
http://strangesoft.net