Re: [libgpiod][PATCH V9 0/8] libgpiod: Add Rust bindings

[Gary Guo <gary@garyguo.net>]

On Wed, 16 Nov 2022 09:12:01 +0800
Kent Gibson <warthog618@gmail.com> wrote:

> On Mon, Nov 14, 2022 at 10:49:36PM +0100, Bartosz Golaszewski wrote:
> > On Mon, Nov 7, 2022 at 10:57 AM Viresh Kumar <viresh.kumar@linaro.org> wrote:  
> > >
> > > Hello,
> > >
> > > Here is another version of the rust bindings, based of the master branch.
> > >
> > > Pushed here:
> > >
> > > https://github.com/vireshk/libgpiod v9
> > >
> > > V8->V9:
> > > - Merged the last patch (supporting Events) with the other patches.
> > > - Events implementation is simplified and made efficient. nth() is also
> > >   implemented for the iterator.
> > > - Unnecessary comment removed from Cargo.toml files.
> > > - Updated categories in libgpiod's Cargo.toml.
> > > - Updated gpio_events example to show cloned events live past another
> > >   read_edge_events().
> > > - Implement AsRawFd for Chip.
> > > - Other minor changes.
> > >  
> > 
> > Kent, Miguel: if you are ok with this version - can you add your review tags?
> > 
> > Bart  
> 
> As mentioned elsewhere, I'm a bit iffy about the handling of non-UTF-8
> names, which are treated as errors, but are valid in the C API.
> But that is an extreme corner case that can be addressed later, so I have
> no objection to this version being merged.
> 
> Reviewed-by: Kent Gibson <warthog618@gmail.com>
> 
> Cheers,
> Kent.

I have glanced through the code and I find no reason that the `str` used
couldn't be replaced with `[u8]` or `OsStr`. The former might be a
little bit difficult to use, but `OsStr` could be easily converted into
`str` by just `.to_str().expect("name should be utf-8")` if the user
don't care about non-UTF-8 or is certain that names are indeed UTF-8.

I am not sure about whether this would be worthwhile though, because I
doubt if anyone is actually using non-UTF-8 strings in those places.
Non-ASCII usages should already be rare?

Best,
Gary