Re: [MiNT] zview

[OL <o.l@lutece.net>]

 Le 23/10/2011 12:30, Helmut Karlowski a écrit :
> Am 22.10.2011, 14:29 Uhr, schrieb OL <o.l@lutece.net>:
>
> > No as I remember I installed vectors with vex_xxx function from VDI 
> > and I try to call gemdos to wake up a process sleeping, it crash 
> > while it work fine with Magic (I start work on MyAES under MagicMac). 
> > This was clean way to manage events while now as I'm not in kernel I 
> > need periodically look in events.
>
> I think VDI is much more critical - depending on the VDI in use it may 
> be or may not be reentrant (and I guess NVDI and MagiC have some 
> common undocumented internals), so I'd say never do this from a VDI-trap.
>
> In such a case setting a flag to be evaluated in another loop would 
> probably be a solution, but I don't know your specific case.
>
> But you can trap VDI from AES (of course) ..

when you use vex_xxx() function it's for install interrupt vector for 
mouse click, mouse move and wheel move, you can add your own vector and 
chain to the old one, the problem not occur in VDI trap but in the 
hardware interrupt, this is very low level.

Olivier