Gets a list of unique object identifiers stored in the this, optionally together with their revisions.
The uids are not returned in any particular order, but the position between out_uids and out_revisions matches
the same object.
Both out_uids and out_revisions contain newly allocated
SList, which should be freed with g_slist_free_full (slist, g_free); when no longer needed.
| this |
an Cache |
| deleted_flag |
one of CacheDeletedFlag enum |
| out_uids |
a pointer to SList to store the found uid to |
| out_revisions |
a pointer to SList to store the found revisions to, or null |
| cancellable |
optional Cancellable object, or null |
|
Whether succeeded. It doesn't necessarily mean that there was any object stored in the this. |