Doubt in importance of SCHEDULER_PRIORITY_APPEND

[Richi Dubey]

I understand! Thank you for the clarification.

On Wed, Jan 20, 2021 at 11:20 PM Sebastian Huber <
sebastian.huber at embedded-brains.de> wrote:

> On 20/01/2021 17:46, Joel Sherrill wrote:
>
> >
> > On Wed, Jan 20, 2021 at 1:50 AM Richi Dubey <richidubey at gmail.com
> > <mailto:richidubey at gmail.com>> wrote:
> >
> >     Appending an item to its priority group means adding the item to
> >     the end of the priority queue of items with the same priority, but
> >     when/why do we do this? Do all classic tasks have their
> >     SCHEDULER_PRIORITY_APPEND_FLAG set to 1?
> >
> >
> > There is (was) a specific case in the POSIX implementation that
> > required the thread to be placed at the head of the list. Hopefully it
> > is still there or all the Ada conformance tests will not pass. At
> > least, that was where I encountered code that depended on that very
> > precise behavior.
> Yes, it is pthread_setschedprio(), however, the special case is that it
> is prepended to its priority group.
>
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