Re: [PATCH kvm-unit-tests 4/8] powerpc: Introduce getchar

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On Thu, Feb 08, 2018 at 12:06:07PM +0100, Thomas Huth wrote:
> On 07.02.2018 20:03, Andrew Jones wrote:
> > Move the unit test specific h_get_term_char() to powerpc common code
> > and call it getchar(). Other architectures may want to implement
> > getchar() too (ARM will in a coming patch), so put the prototype in
> > libcflat.h
> 
> Using the libc name getchar() here sounds wrong. h_get_term_char()
> behaves differently compared to the libc getchar(), e.g. it does not
> block if there are no characters available.
> I think you should either name this function differently, or implement a
> behavior that is more close to the libc getchar() to avoid future confusion.
>

Good point. I guess I should rename it, because we'd need to anyway in
order to share getchar()'s implementation among other architectures,
unless we duplicated the looping and EOF returning. Any suggestion for
the name? __getchar() or stdin_readb()?

Note, I see we got things wrong for puts() too. Maybe we should do a
quick libc function audit and send a cleanup series.

Thanks,
drew



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