Re: Task storage

[mheaney@ni.net (Matthew Heaney)]

In article <34F30CB0.CD9@obs-vlfr.fr>, laval@obs-vlfr.fr wrote:

>My Ada 95 application, compiled with Gnat 3.10 under Windows 95,
>recursively allocates large tasks (about 1_000 instructions).
>Storage_Error is raised after only a few ten tasks are created, despite
>the 40 Mbytes available on my machine. I need about 12 Kbytes of stack
>per task. The default storage pool is obviously too small. I would like
>to set up a user defined pool object, according to the chapter 13.11 of
>the ALRM, but the examples given make not very clear how Allocate could
>be overridden to reserve 12 Kbytes each time "new" is executed. Where
>can I find some examples which could be adapted to solve my problem?

Why not use the Storage_Size pragma or Storage_Size attribute for the task
directly?

Using a storage pool would only control how the memory for the task
*object* gets allocated; it has nothing to say about the task itself.

I think the storage size attribute is what you want, ie

task type T is ...;
for T'Storage_Size use 12 * 1024;

You can also use pragma form

task type T (Size : Positive) is
   pragma Storage_Size (Size);
   entry E;
...
end T;

(I think that's it.  I haven't actually tried it yet.)