netatalk: list.h Source File

netatalk 4.5.1
Free and Open Source Apple Filing Protocol (AFP) Server
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include/atalk/list.h
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1/* This code has been stolen from Linux kernel :) */
2/* distributed under GNU GPL version 2. */
3
4#ifndef _ATALK_LIST_H
5#define _ATALK_LIST_H
6
17
18 struct list_head {
19 struct list_head *next, *prev;
20};
21
22#define ATALK_LIST_HEAD_INIT(name) { &(name), &(name) }
23
24#define ATALK_LIST_HEAD(name) \
25 struct list_head name = ATALK_LIST_HEAD_INIT(name)
26
27#define ATALK_INIT_LIST_HEAD(ptr) do { \
28 (ptr)->next = (ptr); (ptr)->prev = (ptr); \
29} while (0)
30
31#ifdef USE_LIST
38static inline void __list_add(struct list_head *new,
39 struct list_head *prev,
40 struct list_head *next)
41{
42 next->prev = new;
43 new->next = next;
44 new->prev = prev;
45 prev->next = new;
46}
47
56static inline void list_add(struct list_head *new, struct list_head *head)
57{
58 __list_add(new, head, head->next);
59}
60
69static inline void list_add_tail(struct list_head *new, struct list_head *head)
70{
71 __list_add(new, head->prev, head);
72}
73
81static inline void __list_del(struct list_head *prev,
82 struct list_head *next)
83{
84 next->prev = prev;
85 prev->next = next;
86}
87
93static inline void list_del(struct list_head *entry)
94{
95 __list_del(entry->prev, entry->next);
96}
97
102static inline void list_del_init(struct list_head *entry)
103{
104 __list_del(entry->prev, entry->next);
105 ATALK_INIT_LIST_HEAD(entry);
106}
107
112static inline int list_empty(struct list_head *head)
113{
114 return head->next == head;
115}
116
122static inline void list_splice(struct list_head *list, struct list_head *head)
123{
124 struct list_head *first = list->next;
125
126 if (first != list) {
127 struct list_head *last = list->prev;
128 struct list_head *at = head->next;
129 first->prev = head;
130 head->next = first;
131 last->next = at;
132 at->prev = last;
133 }
134}
135
136#endif
143#define list_entry(ptr, type, member) \
144 ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
145
151#define list_for_each(pos, head) \
152 for (pos = (head)->next; pos != (head); \
153 pos = pos->next)
154
160#define list_for_each_prev(pos, head) \
161 for (pos = (head)->prev; pos != (head); \
162 pos = pos->prev)
163#endif
next
#define next
Definition hash.c:36
ATALK_INIT_LIST_HEAD
#define ATALK_INIT_LIST_HEAD(ptr)
Definition include/atalk/list.h:27
first
static int first
Definition nad_ls.c:56
entry
Definition ad_open.c:95
list_head
Definition include/atalk/list.h:18
list_head::prev
struct list_head * prev
Definition include/atalk/list.h:19
list_head::next
struct list_head * next
Definition include/atalk/list.h:19
list
Definition etc/atalkd/list.h:6