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-rw-r--r--src/util/list.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/util/list.h b/src/util/list.h
index 287a4946dc6..73b6272ca19 100644
--- a/src/util/list.h
+++ b/src/util/list.h
@@ -38,6 +38,7 @@
#define _UTIL_LIST_H_
+#include <stdbool.h>
#include <stddef.h>
@@ -92,6 +93,20 @@ static inline void list_delinit(struct list_head *item)
item->prev = item;
}
+static inline bool list_empty(struct list_head *list)
+{
+ return list->next == list;
+}
+
+static inline unsigned list_length(struct list_head *list)
+{
+ struct list_head *node;
+ unsigned length = 0;
+ for (node = list->next; node != list; node = node->next)
+ length++;
+ return length;
+}
+
#define LIST_INITHEAD(__item) list_inithead(__item)
#define LIST_ADD(__item, __list) list_add(__item, __list)
#define LIST_ADDTAIL(__item, __list) list_addtail(__item, __list)