Re: Two way pipe

[Ludovic Courtès]

Hello!

Neil Jerram <address@hidden> writes:

> address@hidden (Ludovic Courtès) writes:
>
>> Doesn't `OPEN_BOTH' do what you want? 
>
> Yes, indeed.  Believe it or not, I was looking at a 1.6 distribution
> and didn't think to check 1.8 or CVS.  (Newbie alert! :-))

Oh, gosh, I thought you were using cutting-edge technology!  ;-)

> So far I've been playing with (open-input-pipe "mplayer -slave ..."),
> but not bothering to select on and read from the pipe.  If the track
> being played is longer than about 3 minutes, mplayer crashes - and I
> assume that's because its write to stdout is failing unexpectedly.  So
> for some programs, it seems that filling up the pipe buffer can be a
> problem even if in only one direction.

How does it crash?  `EPIPE' or some such?

> When I implement things fully this won't be a problem, because the
> Guile app will be reading any available data from the pipe as soon as
> it's there, and only very rarely writing anything.

Ok.  Out of curiosity, are you trying to write a Guile front-end (if
that's not too much of a nosy question)?

Thanks,
Ludovic.