Returns true is the list has exactly one element, otherwise returns false.
---
src/util/list.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/util/list.h b/src/util/list.h
index b98ce59..2b03461 100644
--- a/src/util/list.h
+++ b/src/util/list.h
@@ -99,6 +99,14 @@ static inline bool list_empty(struct list_head *list)
return list->next == list;
}
+/**
+ * Return true is the list has exactly one element, otherwise return false.
+ */
+static inline bool list_is_single(struct list_head *list)
+{
+ return list->next != NULL && list->next->next == list;
+}
+
static inline unsigned list_length(struct list_head *list)
{
struct list_head *node;
--
2.5.3
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