Re: Finalization of a record containing a task

[Robert A Duff <bobduff@shell01.TheWorld.com>]

Stephen Leake <stephen_leake@acm.org> writes:

> you need to have a 'select' statement, with an open 'terminate'
> alternative.

That works in some cases, but you can't mix delay alternatives with
terminate alternatives.  Maybe you could replace the delay with an
accept, and arrange for some other task to call that entry
periodically.  But then how do you get rid of that *other* task?

You also can't mix entry calls with terminate alternatives, so if the
task wants to talk to a protected object, you're stuck.

> > package body PKG is
> >    task T_Worker is
> >       {Inner task of T_Worker}
> >    begin
> >       loop
> >          select
> >             accept Start;
> >          or
> >             accept Stop;
> >          or
> >             ...
> >          or
> >             delay until Some_Time;
> 
>            or terminate;
> 
> >          end select;
> >       end loop;
> > end PKG;
> 
> -- 
> -- Stephe

- Bob