Function io_uring_get_events 

pub unsafe extern "C" fn io_uring_get_events(
    ring: *mut io_uring,
) -> c_int

Flush outstanding requests to CQE ring

DESCRIPTION

The io_uring_get_events function runs outstanding work and flushes completion events to the CQE ring.

There can be events needing to be flushed if the ring was full and had overflowed. Alternatively if the ring was setup with the IORING_SETUP_DEFER_TASKRUN flag then this will process outstanding tasks, possibly resulting in more CQEs.

RETURN VALUE

On success io_uring_get_events returns 0. On failure it returns -errno.

SEE ALSO

io_uring_get_sqe, io_uring_submit_and_get_events, io_uring_cq_has_overflow