add libipset

libipset/map/allocation.c

@@ -0,0 +1,50 @@
+/* -*- coding: utf-8 -*-
+ * ----------------------------------------------------------------------
+ * Copyright © 2009-2012, RedJack, LLC.
+ * All rights reserved.
+ *
+ * Please see the LICENSE.txt file in this distribution for license
+ * details.
+ * ----------------------------------------------------------------------
+ */
+
+#include <libcork/core.h>
+
+#include "ipset/bdd/nodes.h"
+#include "ipset/ipset.h"
+
+
+void
+ipmap_init(struct ip_map *map, int default_value)
+{
+    /* The map starts empty, so every value assignment should yield the
+     * default. */
+    map->cache = ipset_node_cache_new();
+    map->default_bdd = ipset_terminal_node_id(default_value);
+    map->map_bdd = map->default_bdd;
+}
+
+
+struct ip_map *
+ipmap_new(int default_value)
+{
+    struct ip_map  *result = cork_new(struct ip_map);
+    ipmap_init(result, default_value);
+    return result;
+}
+
+
+void
+ipmap_done(struct ip_map *map)
+{
+    ipset_node_decref(map->cache, map->map_bdd);
+    ipset_node_cache_free(map->cache);
+}
+
+
+void
+ipmap_free(struct ip_map *map)
+{
+    ipmap_done(map);
+    free(map);
+}