12 #ifndef NETLINK_LIST_H_
13 #define NETLINK_LIST_H_
22 static inline void __nl_list_add(
struct nl_list_head *obj,
32 static inline void nl_list_add_tail(
struct nl_list_head *obj,
35 __nl_list_add(obj, head->prev, head);
38 static inline void nl_list_add_head(
struct nl_list_head *obj,
41 __nl_list_add(obj, head, head->next);
46 obj->next->prev = obj->prev;
47 obj->prev->next = obj->next;
50 static inline int nl_list_empty(
struct nl_list_head *head)
52 return head->next == head;
55 #define nl_container_of(ptr, type, member) ({ \
56 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
57 (type *)( (char *)__mptr - ((size_t) &((type *)0)->member));})
59 #define nl_list_entry(ptr, type, member) \
60 nl_container_of(ptr, type, member)
62 #define nl_list_at_tail(pos, head, member) \
63 ((pos)->member.next == (head))
65 #define nl_list_at_head(pos, head, member) \
66 ((pos)->member.prev == (head))
68 #define NL_LIST_HEAD(name) \
69 struct nl_list_head name = { &(name), &(name) }
71 #define nl_list_for_each_entry(pos, head, member) \
72 for (pos = nl_list_entry((head)->next, typeof(*pos), member); \
73 &(pos)->member != (head); \
74 (pos) = nl_list_entry((pos)->member.next, typeof(*(pos)), member))
76 #define nl_list_for_each_entry_safe(pos, n, head, member) \
77 for (pos = nl_list_entry((head)->next, typeof(*pos), member), \
78 n = nl_list_entry(pos->member.next, typeof(*pos), member); \
79 &(pos)->member != (head); \
80 pos = n, n = nl_list_entry(n->member.next, typeof(*n), member))
82 #define nl_init_list_head(head) \
83 do { (head)->next = (head); (head)->prev = (head); } while (0)