Re: [MiNT] Kentry

[Adam Klobukowski <atari@gabo.pl>]

Frank Naumann napisał(a):
> Hello!
>
> > I'd like to add to kentry/kentry_module:
> >
> > long _cdecl (*register_shutdown)(long _cdecl (*on_shutdown)(long mode));
> >
> > Module (device driver or such) could register a function that can be 
> > executed at system shutdown, or module unload. "mode" parameter can be 
> > following:
> >
> > #define SHUTOWN 0 /* system is going down, all processes are killed, 
> > all file descriptors closed */
> > #define UNLOAD 1 /* just unload module. System is fully operational 
> > and should be operational after this function */
> >
> > All other values are reserved. If on_shutdown function will get any 
> > other value, it should exit at once returning E_OK.
> >
> > on_shutdown return value should be E_OK if function succeded, or error 
> > value if it didn't.
> >
> > Any comments?
>
>
> Yes, in this way it don't make much sense and it will not work (e.g. for 
> example to which module belongs the callback?). I planned such things 
> for an extended module interface. Dynamic unload of modules is a little 
> bit problematic as until now no kernel part track a reference if the 
> module is still in use (I'm sure a module unload should be denied if 
> some kernel data structures still reference it :-)).

Ok, the "unload" feature was an extra in my mind, so, how does it look 
without unload? Just the on_shutdown feature?

--
Semper Fidelis

Adam Klobukowski
atari@gabo.pl