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_id, const struct timespec *timeout);
DESCRIPTION
Attempts to read an event from the completion queue for the aio_context specified by ctx_id.
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_id 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).