Function dlist_is_empty

src/include/lib/ilist.h:288–294

* Is the list empty? * * An empty list has either its first 'next' pointer set to NULL, or to itself. */

 * An empty list has either its first 'next' pointer set to NULL, or to itself.
 */
static inline bool
dlist_is_empty(dlist_head *head)
{
	dlist_check(head);

	return head->head.next == NULL || head->head.next == &(head->head);
}

/*
 * Insert a node at the beginning of the list.