From: Jeff Carter <carter@spam.innocon.com>
Subject: Re: Task Discriminants & Arrays
Date: 1997/05/14
Date: 1997-05-14T00:00:00+00:00 [thread overview]
Message-ID: <3379CA43.167EB0E7@spam.innocon.com> (raw)
In-Reply-To: 3378A5C5.5401@sprintmail.com
John G. Volan wrote:
>
> Jeff Carter wrote:
> >
> > As I understand it, task discriminants were intended to eliminate the
> > "serial bottleneck" that results from having to call an initialization
> > entry to provide information like this to task instances. However, as
> > far as I can tell, it simply complicates matters: You have to declare an
> > access type designating the task type, make your array type an array of
> > these access types, then allocate the tasks at runtime:
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> No, not necessarily:
>
> >
> > task type T (Id : Positive) is
> > entry E;
> > end T;
> >
> > type T_Ptr is access all T;
> >
> > type A is array (Some_Range) of T_Ptr;
> >
>
> T_1 : aliased T (Id => 1);
> T_2 : aliased T (Id => 2);
> T_3 : aliased T (Id => 3);
> ...
>
> O : constant A :=
> (1 => T_1'Access,
> 2 => T_2'Access,
> 3 => T_3'Access,
> ... );
>
An excellent choice when you have 1E6 of these guys ...
--
Jeff Carter PGP:1024/440FBE21
Auntie-spam reply to; try ( carter @ innocon . com )
"Now go away, or I shall taunt you a second time."
Monty Python & the Holy Grail
next prev parent reply other threads:[~1997-05-14 0:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-05-13 0:00 Task Discriminants & Arrays Matthew Heaney
1997-05-13 0:00 ` Jeff Carter
1997-05-13 0:00 ` John G. Volan
1997-05-14 0:00 ` Jeff Carter [this message]
1997-05-13 0:00 ` Matthew Heaney
1997-05-13 0:00 ` Robert A Duff
1997-05-14 0:00 ` W. Wesley Groleau (Wes)
1997-05-15 0:00 ` Robert A Duff
1997-05-15 0:00 ` John G. Volan
1997-05-15 0:00 ` Robert A Duff
1997-05-16 0:00 ` John G. Volan
1997-05-16 0:00 ` John G. Volan
1997-05-15 0:00 ` Matthew Heaney
1997-05-15 0:00 ` John G. Volan
1997-05-15 0:00 ` Mats Weber
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