Originální popis anglicky:
io_getevents - Read asynchronous I/O events from the completion queue
Návod, kniha: Linux Programmer's Manual
#include <linux/time.h>
#include <linux/aio.h>
long
io_getevents (aio_context_t
ctx_id,
long
min_nr, long
nr,
struct io_event
*events,
struct timespec
*timeout);
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
operation blocks.
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 2002.
io_setup(2),
io_submit(2),
io_getevents(2),
io_cancel(2),
io_destroy(2).
The asynchronous I/O system calls were written by Benjamin LaHaise.
Kent Yoder.
