Re: [Xenomai-help] Replacement for rt_save_flags_and_cli

[Jan Kiszka <kiszka@domain.hid>]

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Ignacio García Pérez wrote:
> Philippe Gerum wrote:
> 
> 
>>Ignacio García Pérez wrote:
>>
>>
>>>Hi,
>>>
>>>Porting app from RTAI. Just another newbie question. Is there a
>>>substitute for rt_save_flags_and_cli / rt_restore_flags ?.
>>
>>
>>See include/nucleus/asm-generic/hal.h:
>>
>>#define rthal_local_irq_save(x)   
>>#define rthal_local_irq_restore(x)
> 
> 
> Thanks. I just found the following functions in
> include/nucleus/asm-generic/system.h
> 
> xnlock_get_irqsave
> xnlock_put_irqrestore
> xnlock_clear_irqoff
> xnlock_clear_irqon
> 
> They're just #defines to the rthal_ functions.
> 
> Should I use rthal_* or xnlock_* ?

I would suggest xnlock_, because this is the higher abstraction layer
(the nucleus on top of the hal).

But: both primitives are rather low-level. Do you really need that
"hard" locks? What are you synchronising this way, IRQ handlers with
tasks, tasks with other tasks?

> 
> By the way, so far I'm uttery in love with the clean, consistent API of
> the native skin.

Would you like to forward this statement to a specific mailing list of a
formely related project? ;) (only kidding, just had to smile)

Jan


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