* Some questions on task dependency
@ 2005-02-09 13:30 Evangelista Sami
2005-02-09 14:02 ` Robert A Duff
0 siblings, 1 reply; 2+ messages in thread
From: Evangelista Sami @ 2005-02-09 13:30 UTC (permalink / raw)
Hello all
Let us take this code :
---------------------------------------------
procedure Main_Proc is
task type T;
type Access_T is access T;
type Array_T is array(1..10) of T;
A_Dynamic_T : Access_T := new T;
A_T : T;
Some_Ts : Array_T;
task body T is
I : Integer;
begin
Dont_Care;
end;
J : Integer;
begin
Do_Something;
end;
---------------------------------------------
I am interested in the behavior of the main procedure Main_Proc. I
carefully read the RM but i am not sure of what will exactly happen
with this program.
Is the following true :
1 - Main_Proc allocates A_Dynamic_T and waits for A_Dynamic_T.all to
finish its activation, i.e., declaration of I
2 - Once the activation of A_Dynamic_T.all finished Main_Proc can
pursue its declarations
3 - Main_Proc activates A_T, Some_Ts(1), ..., Some_Ts(10)
4 - Main_Proc is suspended on its begin and waits for A_T, Some_Ts(1),
..., Some_Ts(10) to finish their activation
5 - Main_Proc executes Do_Something
6 - Main_Proc is suspended on its end and waits for A_T, Some_Ts(1),
..., Some_Ts(10) to be terminated
7 - Main_Proc waits for the termination of all the tasks allocated by
an access varible of type Access_T, i.e., A_Dynamic_T.all
8 - Main_Proc is completely finalized by "freeing" variable J.
Thanks for any help
Sami
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Some questions on task dependency
2005-02-09 13:30 Some questions on task dependency Evangelista Sami
@ 2005-02-09 14:02 ` Robert A Duff
0 siblings, 0 replies; 2+ messages in thread
From: Robert A Duff @ 2005-02-09 14:02 UTC (permalink / raw)
evangeli@cnam.fr (Evangelista Sami) writes:
> Hello all
>
> Let us take this code :
> ---------------------------------------------
> procedure Main_Proc is
>
> task type T;
> type Access_T is access T;
> type Array_T is array(1..10) of T;
>
> A_Dynamic_T : Access_T := new T;
> A_T : T;
> Some_Ts : Array_T;
>
> task body T is
> I : Integer;
> begin
> Dont_Care;
> end;
>
> J : Integer;
>
> begin
> Do_Something;
> end;
> ---------------------------------------------
>
> I am interested in the behavior of the main procedure Main_Proc. I
> carefully read the RM but i am not sure of what will exactly happen
> with this program.
> Is the following true :
>
> 1 - Main_Proc allocates A_Dynamic_T and waits for A_Dynamic_T.all to
> finish its activation, i.e., declaration of I
> 2 - Once the activation of A_Dynamic_T.all finished Main_Proc can
> pursue its declarations
> 3 - Main_Proc activates A_T, Some_Ts(1), ..., Some_Ts(10)
> 4 - Main_Proc is suspended on its begin and waits for A_T, Some_Ts(1),
> ..., Some_Ts(10) to finish their activation
> 5 - Main_Proc executes Do_Something
> 6 - Main_Proc is suspended on its end and waits for A_T, Some_Ts(1),
> ..., Some_Ts(10) to be terminated
> 7 - Main_Proc waits for the termination of all the tasks allocated by
> an access varible of type Access_T, i.e., A_Dynamic_T.all
> 8 - Main_Proc is completely finalized by "freeing" variable J.
Yes, except that steps 6 and 7 are really just one step.
6/7: Main_Proc waits for all 12 tasks to terminate.
- Bob
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