2 * Copyright © 2008-2011 Kristian Høgsberg
3 * Copyright © 2011 Intel Corporation
4 * Copyright © 2013-2015 Red Hat, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
34 * This list data structure is a verbatim copy from wayland-util.h from the
35 * Wayland project; except that wl_ prefix has been removed.
43 void list_init(struct list *list);
44 void list_insert(struct list *list, struct list *elm);
45 void list_append(struct list *list, struct list *elm);
46 void list_remove(struct list *elm);
47 bool list_empty(const struct list *list);
48 bool list_is_last(const struct list *list, const struct list *elm);
50 #define container_of(ptr, type, member) \
51 (__typeof__(type) *)((char *)(ptr) - \
52 offsetof(__typeof__(type), member))
54 #define list_first_entry(head, pos, member) \
55 container_of((head)->next, __typeof__(*pos), member)
57 #define list_last_entry(head, pos, member) \
58 container_of((head)->prev, __typeof__(*pos), member)
60 #define list_for_each(pos, head, member) \
61 for (pos = 0, pos = list_first_entry(head, pos, member); \
62 &pos->member != (head); \
63 pos = list_first_entry(&pos->member, pos, member))
65 #define list_for_each_safe(pos, tmp, head, member) \
66 for (pos = 0, tmp = 0, \
67 pos = list_first_entry(head, pos, member), \
68 tmp = list_first_entry(&pos->member, tmp, member); \
69 &pos->member != (head); \
71 tmp = list_first_entry(&pos->member, tmp, member))