Re: Feature suggestion: different task schedules

[Victor Porton <porton@narod.ru>]

Surprisingly low response to my idea.

Should we have it in future Ada? (My opinion is "yes".)

Victor Porton wrote:
> I propose for Ada 2020 to add the following pragmas (and corresponding
> aspects) for tasks and task types:
> 
> pragma Schedule=>Thread;
> 
> the regular task.
> 
> pragma Schedule=>Manual;
> 
> the task runs only when a protected entry is called and stops at the next
> accept statement.
> 
> This is usually the fastest mode in the case of one-core system.
> 
> pragma Schedule=>Sometimes;
> 
> the task run in either of two above modes (with tasks of a task type not
> necessarily scheduled in the same way (some may be Thread and some
> Manual)).
> 
> The schedule mode may be chosen dependently on free CPU cores availability
> to make it the fastest.
> 
> pragma Schedule=>Dynamic;
> 
> a task with this schedule may switch between Thread and Manual mode at any
> moment of time. This is useful to use CPU cores effectively.
> 
> What do you think?
> 
-- 
Victor Porton - http://portonvictor.org