On 09/27/2011 05:07 PM, Anthony Liguori wrote:
You don't expect to handle EAGAIN with eventfd() whereas you have to
handle it with pipe().
Moreover, the eventfd() counter is not lossy (practically speaking)
whereas if you use pipe() as a counter, it will be lossy in practice.
This is why posix aio uses pipe() and not eventfd().
We could define a qemu_event mechanism that satisfies the least common
denominator, and is implemented by eventfd when available.
qemu_event_create()
qemu_event_signal()
qemu_event_wait()
qemu_event_poll_add() // registers in main loop
qemu_event_poll_del()
--
error compiling committee.c: too many arguments to function
