kernel features MIB
Alfred Perlstein
alfred at freebsd.org
Fri Dec 28 14:57:25 PST 2007
* John Baldwin <jhb at freebsd.org> [071228 14:54] wrote:
> On Thursday 27 December 2007 05:04:44 pm John Baldwin wrote:
> > At work we don't have a pretty API for this at all, but I'm thinking for
> > FreeBSD we can do this:
> >
> > FEATURE(foo, "description of foo")
> >
> > which is a macro to create the 'kern.features.foo' node and set it to 1. Then
> > we could have a routine in libc:
> >
> > int feature_present(const char *name);
> >
> > That returns a boolean to indicate if a given feature is present or not by
> > invoking sysctlbyname(3), etc.
> >
> > Any objections to the idea?
>
> So here's a bikeshed question I have no idea for. Which header should
> feature_present()'s prototype go in? I anticipate this routine being
> used in libc itself, so I don't think it can go into libutil.
Whereever sysconf/pathconf stuff is.
--
- Alfred Perlstein
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