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io_queue_wait
Section: Linux AIO (3) Updated: 201-0-23 Index
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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).
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- RETURN VALUES
-
- ERRORS
-
- SEE ALSO
-
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