On Jul 15, 2010, at 11:07 AM, IOhannes zmölnig wrote:
On 07/15/2010 04:46 PM, Hans-Christoph Steiner wrote:
The vwait timeout would not be needed if we can rely on 'pd' to
actually
fully die when it exits/crashes. On Mac OS X at least it is often
doesn't completely crash and the process just sits there doing who
knows
what. If this happens on startup, pd-gui's exec call will not
return,
and pdtk_pd_startup won't be called and pd-gui will just sit and wait
forever, giving us a zombie pd-gui. The vwait stuff wouldn't be
needed
if we can rely of pd to exit completely on all platforms. Just
removing
the vwait stuff is just replacing one problem with another.
sure.
i'm only talking about the race-condition.
whether the vwait is there for other things is entirely beyond my
scope.
iirc, this is the title of this thread as well.
So you were seeing something like Tcl/pd-gui pegging the CPU when
getting stuck in a loop? Or was it that pd-gui was sitting there
waiting doing nothing?
Relax, no one is suggesting fixing a race condition with a
timeout. Can
you describe how to reproduce the race condition? What's actually
racing? Did Miller's changes fix it?
i did not experience any problem with miller's changes so far (which
does not mean that the race-condition is gone, it just didn't show up)
racing was between pd-gui and pd: if the latter was to late, either
pd-gui would timeout or the media menu would be initialized wrongly
(no
audio/midi APIs available)
Ok, so you made this happen by having pd start jackd? I am trying to
figure out how to reproduce it so I can tell what's happening.
leaving all this aside, i still think that it is a good idea for Pd to
be able to change the dynamic entries of the menu at any time.
if the available APIs change, Pd could update the menu accordingly
(sounds like a stupid idea? but if jackd is running, then the only
really available API would be jack (OSS, ALSA, portaudio being all
blocked by jackd; ich jackd stops, other APIs would become available
again)
That sounds good to me too, though I don't think that having jackd
running should hide the other Audio options. Just because jackd is
running doesn't mean that the user might want to switch to ALSA. Or
am I missing some annoying technical detail?
.hc
----------------------------------------------------------------------------
Terrorism is not an enemy. It cannot be defeated. It's a tactic.
It's about as sensible to say we declare war on night attacks and
expect we're going to win that war. We're not going to win the war on
terrorism. - retired U.S. Army general, William Odom
_______________________________________________
Pd-dev mailing list
Pd-dev@iem.at
http://lists.puredata.info/listinfo/pd-dev
