* Dominic Marks <[EMAIL PROTECTED]> [010502 14:29] wrote:
> I've been looking to start using the KEvent system and I've been
> experimenting with it. However I've been having several problems, with my
> own code as well as samples from http://www.flugsvamp.org.
www.flugsvamp.org doesn't seem to resolve.
>
> It appears I am able to create the correct structure's and register the
> events. However the event never returns and never responds to any action.
> For example if I use a sample which monitors the actions on a file I can
> read from, and write to the file and it shows no sign of noticing.
>
> I was wondering if it's simply a mistake of my own, however the failure for
> the samples I've found has puzzled my further. I'm working on a 4.3-STABLE
> machine using GCC version 2.95.3.
>
> Here is an example of code that I am using which doesn't seem to catch any
> events. Its a slightly modified version of read_test.c from flugsvamp.com
> which I edit so it would compile happily.
>
> It doesn't seem to work however.
>
[snip..]
> kq = syscall(SYS_kqueue);
> if (kq < 0)
> err(1, "kqueue");
>
> event[0].ident = fd;
> event[0].filter = EVFILT_READ;
> event[0].flags = EV_ADD | EV_ENABLE;
> evp[0] = &event[0];
> n = syscall(SYS_kevent, kq, 1, evp, 0, NULL, 0);
uh, what the heck? Why not just use the kqueue call directly like
the manpage explains? I think you have the arguments to kevent()
wrong.
--
-Alfred Perlstein - [[EMAIL PROTECTED]]
Instead of asking why a piece of software is using "1970s technology,"
start asking why software is ignoring 30 years of accumulated wisdom.
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
