Does a combination of get_object_list and recur_generate_instances_sync.
Unlike generate_instances_sync, this returns immediately and the
cb callback is called asynchronously.
The callback function should do a @ref of the calendar component it gets passed if it intends to keep it around, since it will be unref'ed as soon as the callback returns.
| this |
A calendar client. |
| start |
Start time for query. |
| end |
End time for query. |
| cancellable |
a Cancellable; can be null |
| cb |
Callback for each generated instance. |
| cb_data |
Closure data for the callback. |
| destroy_cb_data |
Function to call when the processing is done, to free |