| /* |
| * Copyright © 2008-2011 Kristian Høgsberg |
| * Copyright © 2011 Intel Corporation |
| * Copyright © 2013-2015 Red Hat, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #pragma once |
| |
| #include "config.h" |
| |
| #include <stdbool.h> |
| #include <stddef.h> |
| |
| /* |
| * This list data structure is a verbatim copy from wayland-util.h from the |
| * Wayland project; except that wl_ prefix has been removed. |
| */ |
| |
| struct list { |
| struct list *prev; |
| struct list *next; |
| }; |
| |
| void list_init(struct list *list); |
| void list_insert(struct list *list, struct list *elm); |
| void list_append(struct list *list, struct list *elm); |
| void list_remove(struct list *elm); |
| bool list_empty(const struct list *list); |
| bool list_is_last(const struct list *list, const struct list *elm); |
| |
| #define container_of(ptr, type, member) \ |
| (__typeof__(type) *)((char *)(ptr) - \ |
| offsetof(__typeof__(type), member)) |
| |
| #define list_first_entry(head, pos, member) \ |
| container_of((head)->next, __typeof__(*pos), member) |
| |
| #define list_last_entry(head, pos, member) \ |
| container_of((head)->prev, __typeof__(*pos), member) |
| |
| #define list_for_each(pos, head, member) \ |
| for (pos = 0, pos = list_first_entry(head, pos, member); \ |
| &pos->member != (head); \ |
| pos = list_first_entry(&pos->member, pos, member)) |
| |
| #define list_for_each_safe(pos, tmp, head, member) \ |
| for (pos = 0, tmp = 0, \ |
| pos = list_first_entry(head, pos, member), \ |
| tmp = list_first_entry(&pos->member, tmp, member); \ |
| &pos->member != (head); \ |
| pos = tmp, \ |
| tmp = list_first_entry(&pos->member, tmp, member)) |