generic map iterator interface

[nbds] / include / skiplist.h

diff --git a/include/skiplist.h b/include/skiplist.h
index ca6b5143d224db0cd37957b5c80859b56cfbf59a..8df577ab5b690281859aa92eedf65fcaafaf7636 100644 (file)
--- a/include/skiplist.h
+++ b/include/skiplist.h
@@ -4,18 +4,25 @@
 #include "map.h"
 
 typedef struct sl skiplist_t;
+typedef struct sl_iter sl_iter_t;
 
-skiplist_t *sl_alloc (const datatype_t *key_type);
-uint64_t sl_cas    (skiplist_t *sl, void *key, uint64_t expected_val, uint64_t new_val);
-uint64_t sl_lookup (skiplist_t *sl, void *key);
-uint64_t sl_remove (skiplist_t *sl, void *key);
-uint64_t sl_count  (skiplist_t *sl);
-void     sl_print  (skiplist_t *sl);
-void     sl_free   (skiplist_t *sl);
+skiplist_t * sl_alloc (const datatype_t *key_type);
+uint64_t sl_cas     (skiplist_t *sl, void *key, uint64_t expected_val, uint64_t new_val);
+uint64_t sl_lookup  (skiplist_t *sl, void *key);
+uint64_t sl_remove  (skiplist_t *sl, void *key);
+uint64_t sl_count   (skiplist_t *sl);
+void     sl_print   (skiplist_t *sl);
+void     sl_free    (skiplist_t *sl);
+void *   sl_min_key (skiplist_t *sl);
+
+sl_iter_t * sl_iter_begin (skiplist_t *sl, void *key);
+uint64_t    sl_iter_next  (sl_iter_t *iter, void **key_ptr);
+void        sl_iter_free  (sl_iter_t *iter);
 
 static const map_impl_t sl_map_impl = { 
     (map_alloc_t)sl_alloc, (map_cas_t)sl_cas, (map_get_t)sl_lookup, (map_remove_t)sl_remove, 
-    (map_count_t)sl_count, (map_print_t)sl_print, (map_free_t)sl_free
+    (map_count_t)sl_count, (map_print_t)sl_print, (map_free_t)sl_free, (map_iter_begin_t)sl_iter_begin,
+    (map_iter_next_t)sl_iter_next, (map_iter_free_t)sl_iter_free
 };
 
 #endif//SKIPLIST_H