1 files changed, 49 insertions, 0 deletions
diff --git a/lib/skiplist.h b/lib/skiplist.h
new file mode 100644
index 000000000..80aeecba0
--- /dev/null
+++ b/lib/skiplist.h
@@ -0,0 +1,49 @@
+/* Copyright (C) 2016 Hewlett Packard Enterprise Development LP
+ * All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef LIB_SKIPLIST_H_
+#define LIB_SKIPLIST_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+typedef int (skiplist_comparator)(const void *a, const void *b,
+                                  const void *conf);
+
+struct skiplist_node;
+
+struct skiplist;
+
+#define SKIPLIST_FOR_EACH (SKIPLIST_NODE, SKIPLIST) \
+    for (SKIPLIST_NODE = skiplist_first(SKIPLIST); \
+         SKIPLIST_NODE; \
+         SKIPLIST_NODE = skiplist_next(SKIPLIST_NODE))
+
+struct skiplist *skiplist_create(skiplist_comparator *object_comparator,
+                                 void *configuration);
+void skiplist_insert(struct skiplist *sl, const void *object);
+void *skiplist_delete(struct skiplist *sl, const void *object);
+struct skiplist_node *skiplist_find(struct skiplist *sl, const void *value);
+void *skiplist_get_data(struct skiplist_node *node);
+uint32_t skiplist_get_size(struct skiplist *sl);
+struct skiplist_node *skiplist_forward_to(struct skiplist *sl,
+                                          const void *value);
+struct skiplist_node *skiplist_first(struct skiplist *sl);
+struct skiplist_node *skiplist_next(struct skiplist_node *node);
+void skiplist_destroy(struct skiplist *sl, void (*func)(void *));
+
+#endif /* LIB_SKIPLIST_H_ */