[En-Nut-Discussion] Not fixed!!!: Re: confirmed!!! Re: NutOS 4.4.0 on ARM7: possibly bug in NutEnterCritical / NutExitCritical

[Harald Kipp]

Ole Reinhardt schrieb:


> NutEnterCritical();
> 
> if (a != b) {
>    NutExitCritical();
>    return;
> } else {
>    Do some stuff here
>    NutExitCritical();
>    Do some more stuff here
> }

It could be done this way:

NutEnterCritical();

if (a != b) {
    NutJumpOutCritical();
    return;
}
Do some stuff here
NutExitCritical();
Do some more stuff here



> So I would suggest to leave NutEnterCritical / NutExitCritical and
> declacre them as deprecated.
> 
> Two new Functions
> 
> short flags; 
> 
> NutEnterCriticalWithFlags(&flags)
> NutExitCriticalWithFlags(flags)

This is definitely attractive, because it would generally simplify 
porting Nut/OS to new platforms. I'd, however, prefer int instead of short.

AFAIK, the problem doesn't exist with AVR. Anyway, we should ask the 
btnode project also about their opinion.

Harald