Provided by: libaio-dev_0.3.109-2ubuntu1_amd64 bug


       io_getevents - Read resulting events from io requests


       #include <errno.h>

       #include <libaio.h>

       struct iocb {
            void      *data;
            unsigned  key;
            short          aio_lio_opcode;
            short          aio_reqprio;
            int       aio_fildes;

       struct io_event {
               unsigned        PADDED(data, __pad1);
               unsigned        PADDED(obj,  __pad2);
               unsigned        PADDED(res,  __pad3);
               unsigned        PADDED(res2, __pad4);

       int io_getevents(io_context_t ctx, long nr, struct io_event *events[], struct timespec *timeout);


       Attempts  to read  up to nr events from the completion queue for the aio_context specified
       by ctx.


       May return 0 if no events are available and the timeout specified  by  when  has  elapsed,
       where  when  ==  NULL  specifies an infinite timeout.  Note that the timeout pointed to by
       when is relative and will be updated if not NULL and the operation blocks.  Will fail with
       ENOSYS if not implemented.


       EINVAL If  ctx_id is invalid, if min_nr is out of range, if nr is out of range, if when is
              out of range.

       EFAULT If any of the memory specified to is invalid.


       io(3), io_cancel(3), io_fsync(3), io_prep_fsync(3),  io_prep_pread(3),  io_prep_pwrite(3),
       io_queue_init(3),       io_queue_release(3),       io_queue_run(3),      io_queue_wait(3),
       io_set_callback(3), io_submit(3), errno(3).