[squeak-dev] The Inbox: Kernel-jar.1368.mcz
Levente Uzonyi
leves at caesar.elte.hu
Wed Feb 10 19:54:38 UTC 2021
On Wed, 10 Feb 2021, Eliot Miranda wrote:
>
>
> On Wed, Feb 10, 2021 at 11:27 AM Jaromir <m at jaromir.net> wrote:
> > the right solution is to create a new primitive if we want to support
> on-the-fly priority changes.
>
> The system already does on-the-fly priority changes - implementing
> #valueUnpreemptively and #valueAt: - but they're actually not working
> properly due to this #priority: issue - they're trying to use #yield after
> changing the priority down but that really doesn't do anything.
>
>
> So it seems to me that updating the yield primitive to "do the right thing" is a good way to go. Agreed? If so, I should be able to get to that very soon.
I think it's not. Let's say the priority of process p is 30, I want to
increase it to 40 and then do something at that priority.
#yield will stop the process and put it at the end of the list of
processes with 40 priority (I think the current implementation doesn't
check for priority changes and puts the process on the list of its
earlier priority).
So, with yield, p will have to wait until all other 40 priority processes
finish their job or yield instead of just continuing as the active
process.
Levente
> _,,,^..^,,,_
> best, Eliot
>
>
More information about the Squeak-dev
mailing list
|