Re: [take12 0/3] kevent: Generic event handling mechanism.

On Wed, Aug 23, 2006 at 10:22:06AM +0200, Jari Sundell (sundell.software@gmail.com) wrote:

On 8/23/06, Evgeniy Polyakov [off-list ref] wrote:

quoted

void * in structure exported to userspace is forbidden.

Only void * I'm seeing belongs to the user, (udata) perhaps you are
talking of something different?

Yes, exactly about it.

I put union {
	u32 a[2];
	void *b;
} 
epcially to eliminate that problem.

And I'm not that sure aboit stuff like uptr_t or how they call pointers
in userspace and kernelspace.

quoted

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.

The kernel is there to hide those ugly implementation details from the
user, so I don't care that much about a workaround being required in
some cases. More important, IMHO is consistency with the POSIX system
calls.

I guess as long as you use usec, at least it won't be a pain to use.

Andrew suggested to use nanoseconds there in u64 variable.
I think it is ok.

Rakshasa

-- 
	Evgeniy Polyakov