* array for all tasks
@ 2003-12-20 12:00 Ratson Janiv
2003-12-20 14:37 ` Martin Dowie
2003-12-22 9:45 ` Martin Krischik
0 siblings, 2 replies; 3+ messages in thread
From: Ratson Janiv @ 2003-12-20 12:00 UTC (permalink / raw)
Hi,
I have a task with 3entries.
The first entry set an array size:
accept Start(Array_Size:Natural);
declare
Arr_Checks : Arr2(1..Array_Size);
begin ...
The other 2 tasks need to use this array.
how do I implement that, so the other tasks will also know and may use the
array?
10x?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: array for all tasks
2003-12-20 12:00 array for all tasks Ratson Janiv
@ 2003-12-20 14:37 ` Martin Dowie
2003-12-22 9:45 ` Martin Krischik
1 sibling, 0 replies; 3+ messages in thread
From: Martin Dowie @ 2003-12-20 14:37 UTC (permalink / raw)
"Ratson Janiv" <janiv@013.net.il> wrote in message
news:3fe43a4c$1@news.barak.net.il...
> Hi,
> I have a task with 3entries.
> The first entry set an array size:
> accept Start(Array_Size:Natural);
> declare
>
> Arr_Checks : Arr2(1..Array_Size);
>
> begin ...
>
> The other 2 tasks need to use this array.
> how do I implement that, so the other tasks will also know and may use the
> array?
> 10x?
Sounds like you need a protected type/object rather than a task to ensure
data protection. Using a task for this sort of thing (while possible, as per
Ada83) is inefficient.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: array for all tasks
2003-12-20 12:00 array for all tasks Ratson Janiv
2003-12-20 14:37 ` Martin Dowie
@ 2003-12-22 9:45 ` Martin Krischik
1 sibling, 0 replies; 3+ messages in thread
From: Martin Krischik @ 2003-12-22 9:45 UTC (permalink / raw)
Ratson Janiv wrote:
> Hi,
> I have a task with 3entries.
> The first entry set an array size:
> accept Start(Array_Size:Natural);
> declare
>
> Arr_Checks : Arr2(1..Array_Size);
>
> begin ...
>
> The other 2 tasks need to use this array.
> how do I implement that, so the other tasks will also know and may use the
> array?
Arr_Checks'Length
Arr_Checks'First
Arr_Checks'Last
But do read about protected object before continuing. As other posters
pointed out protected objects might be better. I certanly would use a
protected object. You might also look at how I have solved a similar
problem:
http://adacl.sourceforge.net/html
______Include__AdaCL-Queue-Protect__adb.htm
http://adacl.sourceforge.net/html/______Include__AdaCL-Queue-Tasked__adb.htm
With Regards
Martin
--
mailto://krischik@users.sourceforge.net
http://www.ada.krischik.com
^ permalink raw reply [flat|nested] 3+ messages in thread
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