+static int merge_by_names(Unit **u, Set *names, const char *id) {
+ char *k;
+ int r;
+
+ assert(u);
+ assert(*u);
+ assert(names);
+
+ /* Let's try to add in all symlink names we found */
+ while ((k = set_steal_first(names))) {
+
+ /* First try to merge in the other name into our
+ * unit */
+ if ((r = unit_merge_by_name(*u, k)) < 0) {
+ Unit *other;
+
+ /* Hmm, we couldn't merge the other unit into
+ * ours? Then let's try it the other way
+ * round */
+
+ other = manager_get_unit((*u)->meta.manager, k);
+ free(k);
+
+ if (other)
+ if ((r = unit_merge(other, *u)) >= 0) {
+ *u = other;
+ return merge_by_names(u, names, NULL);
+ }
+
+ return r;
+ }
+
+ if (id == k)
+ unit_choose_id(*u, id);
+
+ free(k);
+ }
+
+ return 0;
+}
+
+static int load_from_path(Unit *u, const char *path, UnitLoadState *new_state) {