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diff --git a/kitten/include/lwk/htable.h b/kitten/include/lwk/htable.h
new file mode 100644
index 0000000..feac02b
--- /dev/null
+++ b/kitten/include/lwk/htable.h
@@ -0,0 +1,24 @@
+/* Copyright (c) 2008, Sandia National Laboratories */
+
+#ifndef _LWK_HTABLE_H
+#define _LWK_HTABLE_H
+
+#include <lwk/idspace.h>
+
+/**
+ * Hash table object.
+ */
+typedef void * htable_t;
+
+/**
+ * Hash table API.
+ */
+extern int htable_create(size_t tbl_order,
+                         size_t obj_key_offset, size_t obj_link_offset,
+                         htable_t *tbl);
+extern int htable_destroy(htable_t tbl);
+extern int htable_add(htable_t tbl, void *obj);
+extern int htable_del(htable_t tbl, void *obj);
+extern void *htable_lookup(htable_t tbl, id_t key);
+
+#endif