[MiNT] design question: gemdos/vdi/aes

[Arnaud BERCEGEAY <arnaud.bercegeay@free.fr>]

Hello,

I'd like to get some precisions on the links between process, AES and VDI. 
I speak for a general point of view: i'd like to get the answer for 
existing systems, and your idea for futur possible design (vdi and aes 
implemented as special freemint modules and MP friendly ?).

A process opens a VDI workstation. When the process is dead, is this VDI 
workstation automatically closed or may be automatically closed (by some 
garbage feature) ? In other words, is there a link between VDI handle and 
process ID ? Other question: is it possible for a process to draw 
something in a workstation opened by another process, even if the process 
that created the VDI workstation no more exist ?

Same question for AES: a process initialises an AES application 
(appl_init), and this AES handle (aes_global[] array) is used by two 
processes : the one that has called appl_init, and another one using 
mt_aes functions. When the 1st process ended (WITHOUT calling appl_exit), 
is the AES handle automatically closed by the AES ? The 2nd process can 
keep using this AES handle or not ? In other words, is there a link 
between AES handle and process ID. Is a process able to open 2 AES handles 
(with mt_appl_init and 2 differents aes_global[] arrays) ?

What are the rules ?

Any (even partial) answer is welcome.

best regards,
Arnaud.