NAME

       io_queue_wait - Wait for io requests to complete

SYNOPSIS

       #include <errno.h>

       #include <libaio.h>

       int io_queue_wait(io_context_t ctx, const struct timespec *timeout);

DESCRIPTION

       io_queue_wait() attempts to read an event from the completion queue for the aio_context specified by ctx.

RETURN VALUES

       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.

RETURN VALUES

       On success, io_queue_wait() returns 0.  Otherwise, -error is return, where  error  is  one  of  the  Exxx
       values defined in the Errors section.

ERRORS

       EFAULT iocbs referenced data outside of the program's accessible address space.

       EINVAL ctx  refers  to  an uninitialized aio context, the iocb pointed to by iocbs contains an improperly
              initialized iocb.

       ENOSYS Not implemented.

SEE ALSO

       io(3), io_cancel(3), io_fsync(3), io_getevents(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_set_callback(3), io_submit(3), errno(3).

Linux                                              2019-07-23                                   io_queue_wait(3)