From: Arran Cudbard-Bell <a.cudbardb@freeradius.org>
Date: Fri, 11 Dec 2020 17:32:01 +0000 (-0700)
Subject: More efficient function for unlinking all items from a list
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=264147369ca4772b8499c60202f056022f785d7d;p=thirdparty%2Ffreeradius-server.git

More efficient function for unlinking all items from a list
---

diff --git a/src/lib/util/dlist.h b/src/lib/util/dlist.h
index 8ae78d2c15c..36d66812432 100644
--- a/src/lib/util/dlist.h
+++ b/src/lib/util/dlist.h
@@ -145,6 +145,16 @@ static inline void _fr_dlist_init(fr_dlist_head_t *list_head, size_t offset, cha
 	list_head->num_elements = 0;
 }
 
+/** Efficiently remove all elements in a dlist
+ *
+ * @param[in] list_head	to clear.
+ */
+static inline void fr_dlist_clear(fr_dlist_head_t *list_head)
+{
+	fr_dlist_entry_init(&list_head->entry);
+	list_head->num_elements = 0;
+}
+
 /** Insert an item into the head of a list
  *
  * @note If #fr_dlist_talloc_init was used to initialise #fr_dlist_head_t