[ECOS] Why to signal condvar with mutex held?

Sergei Organov osv@topconrd.ru
Tue Dec 14 16:54:00 GMT 2004


sandeep <shimple0@yahoo.com> writes:
> > > what about keeping the waitlists sorted in decreasing priority order of
> > > threads, when you go with idea of wait morphing? won't this ensure that
> > > highest priority waiting thread gets the mutex?
> > 
> > As far as I know, priority (as opposed to FIFO) wait queues is a
> > separate configuration option in eCos, so you can have them even now if
> yup. there is CYGIMP_KERNEL_SCHED_SORTED_QUEUES in scheduler.cdl that
> is disabled by default (not much varied configuration from default, i
> have explored, as controlled by needs), but the description of that is
> slightly off.

It's broken and I've already reported this, see:

<http://sources.redhat.com/ml/ecos-discuss/2004-11/msg00372.html>

-- 
Sergei.


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