Re: [take22 0/4] kevent: Generic event handling mechanism.

Pavel Machek
2006-11-03T08:57:58Z

Hi!

> > returns, which thread are you referring to? Nicholas Miell, in "The
> > Proposed Linux kevent API" thread, seems to think that there are no
> > advantages over kqueue to justify the incompatibility, an argument you
> > made no effort to refute. I've also read the Kevent wiki at
> > linux-net.osdl.org, but it too is lacking in any direct comparisons
> > (even theoretical, let alone benchmarks) of the flexibility,
> > performance, etc. between the two.
> >
> > I'm not arguing that you've done a bad design, I'm asking you to brag
> > about the things you improved on vs. kqueue. Your emphasis on
> > unifying all the different event types into one interface is really
> > cool, fill me in on why that can't be effectively done with the kqueue
> > compatability and I also will advocate for kevent inclusion.
>
> kqueue just can not be used as is in Linux (_maybe_ *bsd has different
> types, not those which I found in /usr/include in my FC5 and Debian
> distro). It will not work on x86_64 for example. Some kind of a pointer
> or unsigned long in structures which are transferred between kernelspace
> and userspace is so much questionable, than it is much better even do
> not see there... (if I would not have so political correctness, I would
> describe it in a much different words actually).
> So, kqueue API and structures can not be usd in Linux.

Not sure what you are smoking, but "there's unsigned long in *bsd
version, lets rewrite it from scratch" sounds like very bad idea. What
about fixing that one bit you don't like?
Pavel
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