On Tue, 18 Sep 2007, Michael Kerrisk wrote:

quoted text
> The four designs are:
> 
> a) A multiplexing timerfd() system call.
> b) Creating three syscalls analogous to the POSIX timers API (i.e.,
>    timerfd_create/timerfd_settime/timerfd_gettime).
> c) Creating a simplified timerfd() system call that is integrated
>    with the POSIX timers API.
> d) Extending the POSIX timers API to support the timerfd concept.

If you really want to shoot yourself in your foot, I'd pick bullet B.
Bullet A makes me sea-sick, and bullets C and D, well, let's leave POSIX 
APIs being *POSIX* APIs.
Once you remove all the "ifs" and "elses" that resulted from your previous 
bullet A multiplexing implementation, timerfd_gettime and timerfd_settime 
should result in being pretty slick.
I still think we could have survived w/out all this done inside the 
kernel though.



- Davide


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