Provided by: manpages-dev_2.17-1_all
io_getevents - Read asynchronous I/O events from the completion queue
long io_getevents (aio_context_t ctx_id, long min_nr, long nr,
struct io_event *events, struct timespec *timeout);
io_getevents() attempts to read at least min_nr events and up to nr
events from the completion queue of the AIO context specified by
ctx_id. timeout specifies the amount of time to wait for events, where
a NULL timeout waits until at least min_nr events have been seen. Note
that timeout is relative and will be updated if not NULL and the
io_getevents() returns the number of events read: 0 if no events are
available or < min_nr if the timeout has elapsed.
EINVAL ctx_id is invalid. min_nr is out of range or nr is out of range.
EFAULT Either events or timeout is an invalid pointer.
ENOSYS io_getevents() is not implemented on this architecture.
io_getevents() is Linux specific and should not be used in programs
that are intended to be portable.
The asynchronous I/O system calls first appeared in Linux 2.5, August
io_setup(2), io_submit(2), io_getevents(2), io_cancel(2),
The asynchronous I/O system calls were written by Benjamin LaHaise.