On Mon, Dec 22, 2008 at 06:05:34PM -0600, Gerry Weaver wrote: > Hello All, > > I am working on a driver that collects various network statistics via pfil. I > have a simple array of structures that I use to store the statistics. I also > have a user space process that needs to collect these statistics every second > or so. A copy operation from kernel to user space would be too expensive. Is > there a mechanism that would allow me to gain direct access to my kernel > array from user space? The user process would only need read access. It seems > like maybe this could be done with mmap, but since this is not a character > driver, there is no device file etc.. I'm a newbie, so I apologize if this is > something that should be obvious.
would it be feasible to allocate a buffer in userspace and map it into the kernelspace? if so, I believe sf_buf (man 9 sf_buf) should work roman _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
