+#include <stdlib.h>
+
+static int move_lte_to_table(struct lookup_table_entry *lte,
+ void *other_tab)
+{
+ hlist_del(<e->hash_list);
+ lookup_table_insert((struct lookup_table*)other_tab, lte);
+ return 0;
+}
+
+static int lookup_table_join(struct lookup_table *table,
+ struct lookup_table *new)
+{
+ return for_lookup_table_entry(new, move_lte_to_table, table);
+}
+
+/*
+ * Joins lookup tables from the parts of a split WIM.
+ *
+ * @w specifies the first part, while @additional_swms and @num_additional_swms
+ * specify an array of pointers to the WIMStruct's for additional split WIM parts.
+ *
+ * The lookup table entries are *moved* to the new table.
+ *
+ * On success, 0 is returned on a pointer to the joined lookup table is returned
+ * in @table_ret.
+ *
+ * The reason we join the lookup tables is so:
+ * - We only have to search one lookup table to find the location of a
+ * resource in the entire split WIM.
+ * - Each lookup table entry will have a pointer to its split WIM part (and
+ * a part number field, although we don't really use it).
+ */
+int new_joined_lookup_table(WIMStruct *w,
+ WIMStruct **additional_swms,
+ unsigned num_additional_swms,
+ struct lookup_table **table_ret)
+{
+ struct lookup_table *table;
+ int ret;
+ unsigned i;
+
+ table = new_lookup_table(9001);
+ if (!table)
+ return WIMLIB_ERR_NOMEM;
+
+ if (w)
+ lookup_table_join(table, w->lookup_table);
+
+ for (i = 0; i < num_additional_swms; i++) {
+ ret = lookup_table_join(table, additional_swms[i]->lookup_table);
+ if (ret != 0)
+ goto out_free_table;
+ }
+ *table_ret = table;
+ return 0;
+out_free_table:
+ free_lookup_table(table);
+ return ret;
+}