After the latest reactor rework from Nadav, it is no longer allowed to use eventfds
in the reactor for OSv. Change the code to use the reactor notifier instead.
We could just use that instead of semaphores altogether. But because the semaphore is
per listener, we need a translation anyway. So let's keep this one doing the interrupt
processing, and the semaphores doing the rest of the work.
Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
Reviewed-by: Nadav Har'El <nyh@cloudius-systems.com>
bc617f8340