Re: [take24 0/6] kevent: Generic event handling mechanism.

[Evgeniy Polyakov]

On Mon, Nov 27, 2006 at 10:23:39AM -0800, Ulrich Drepper (drepper@xxxxxxxxxx) wrote:
> Evgeniy Polyakov wrote:
> >
> >With provided patch it is possible to wakeup 'for-free' - just call
> >kevent_ctl(ready) with zero number of ready events, so thread will be
> >awakened if it was in poll(kevent_fd), kevent_wait() or
> >kevent_get_events().
> 
> Yes, I realize that.  But I wrote something else:
> 
> >> Rather than mark an existing entry as ready, how about a call to
> >> inject a new ready event?
> >>
> >> This would be useful to implement functionality at userlevel and
> >> still use an event queue to announce the availability.  Without this
> >> type of functionality we'd need to use indirect notification via
> >> signal or pipe or something like that.
> 
> This is still something which is wanted.

Why do we want to inject _ready_ event, when it is possible to mark
event as ready and wakeup thread parked in syscall?

> -- 
> â Ulrich Drepper â Red Hat, Inc. â 444 Castro St â Mountain View, 
> CA â

-- 
	Evgeniy Polyakov
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/