Messages in this thread | | | Date | Wed, 16 Aug 2006 15:37:30 +0300 | From | Mika Penttilä <> | Subject | Re: [take10 1/2] kevent: Core files. |
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+void kevent_user_ring_add_event(struct kevent *k) +{ + unsigned int pidx, off; + struct kevent_mring *ring, *copy_ring; + + ring = (struct kevent_mring *)k->user->pring[0]; + + pidx = ring->index/KEVENTS_ON_PAGE; + off = ring->index%KEVENTS_ON_PAGE; + + copy_ring = (struct kevent_mring *)k->user->pring[pidx]; + + copy_ring->event[off].id.raw[0] = k->event.id.raw[0]; + copy_ring->event[off].id.raw[1] = k->event.id.raw[1]; + copy_ring->event[off].ret_flags = k->event.ret_flags; + + if (++ring->index >= KEVENT_MAX_EVENTS) + ring->index = 0; +}
Can you assume that the page at pidx is already allocated and why?
--Mika
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