Re: [ECOS] interrupts - deleting/finding by vector

[Jonathan Larmour <jlarmour at redhat dot com>]

"David N. Welton" wrote:
> 
> I want to write some code that might want to insert its own interrupts
> (I'm not positive, but I'm still experimenting).
> 
> Is there a way to
> 
> 1) find out if a given vector has a had an interrupt created for it?
> 
> 2) if so, delete/replace it?
> 
> I didn't see anything like this in the API...

It's not part of the "official" API as such, but each HAL has a macro
called HAL_INTERRUPT_IN_USE you can use to determine if an interrupt vector
has something already installed on it. Deleting/replacing it can then be
done using the standard functions. Look at that in the hal_intr.h file in
the arch source directory of the appropriate HAL.

Jifl
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