meta: rename legacy object module to 'ds'

ds/hashmap.h

@@ -0,0 +1,27 @@
+#ifndef _B_HASHMAP_H_
+#define _B_HASHMAP_H_
+
+#include <blue/core/btree.h>
+#include <blue/core/queue.h>
+#include <blue/ds/hashmap.h>
+
+struct b_hashmap_bucket_item {
+	struct b_queue_entry bi_entry;
+	struct b_hashmap_key bi_key;
+	struct b_hashmap_value bi_value;
+};
+
+struct b_hashmap_bucket {
+	struct b_btree_node bk_node;
+	uint64_t bk_hash;
+	struct b_queue bk_items;
+};
+
+struct b_hashmap {
+	struct b_dsref h_base;
+	struct b_btree h_buckets;
+	b_hashmap_key_destructor h_key_dtor;
+	b_hashmap_value_destructor h_value_dtor;
+};
+
+#endif