On Wed, 23 Aug 2006 10:56:59 +0400
Evgeniy Polyakov <[email protected]> wrote:
> On Wed, Aug 23, 2006 at 02:43:50AM +0200, Jari Sundell ([email protected]) wrote:
> > Actually, I didn't miss that, it is an orthogonal issue. A timespec
> > timeout parameter for the syscall does not imply the use of timespec
> > in any timer event, etc. Nor is there any timespec timer in kqueue's
> > struct kevent, which is the only (interface related) thing that will
> > be exposed.
>
> void * in structure exported to userspace is forbidden.
> long in syscall requires wrapper in per-arch code (although that
> workaround _is_ there, it does not mean that broken interface should
> be used).
> poll uses millisecods - it is perfectly ok.
I wonder whether designing-in a millisecond granularity is the right thing
to do. If in a few years the kernel is running tickless with high-res clock
interrupt sources, that might look a bit lumpy.
Switching it to a __u64 nanosecond counter would be basically free on
64-bit machines, and not very expensive on 32-bit, no?
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