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Re: clock_delay_for_interval

> For some reason, the actual implementation of this routine (on PowerPC
> - it doesn't exist on Darwin/x86) is called "delay_for_interval()"
> (without the "clock" prefix). I'm not sure whether this was
> intentional for some reason, or just an error. But I think that
> exposing this routine in the header at all was a mistake. There are
> other, more supported ways, of doing this that a preferable.

Ok. I noticed after I'd written my last post that the
clock_delay_for_interval() prototype was within a #ifdef __APPLE_API_PRIVATE
section. I was kind of misled into thinking it was open for use by this
url:
<http://developer.apple.com/techpubs/macosx/Darwin/General/KernelProgramming
/services/chapter_16_section_4.html>.

> What kind of KEXT is this? If it's an IOKit KEXT, you should be using
> IODelay(). If it is a non-IOKit KEXT, you are probably already
> knee-deep in "no-compatibility-guarantees" code. But the routine
> delay() is much more likely to be supported long term than the
> implementation routine you found and tried.

This is just an internal non-IOKit tool. I didn't see a prototype for
delay() in the Kernel framework. I see #define DELAY(n) delay(n) in
<ppc/param.h> but not the actual prototype for delay(). This works the same
as the toolbox Delay() function? Where is the prototype declared?

Thanks,

Eric
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References: 
 >Re: clock_delay_for_interval (From: Jim Magee <email@hidden>)



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