mirror of
https://github.com/linux-msm/qmic.git
synced 2024-11-23 17:54:01 +08:00
4c693b7551
Use the list implementation from other projects instead of rolling custom list operations throughout the codebase. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/*
|
|
* Copyright (c) 2016, Linaro Ltd.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
#ifndef __LIST_H__
|
|
#define __LIST_H__
|
|
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
|
|
#define container_of(ptr, type, member) ({ \
|
|
const typeof(((type *)0)->member)*__mptr = (ptr); \
|
|
(type *)((char *)__mptr - offsetof(type, member)); \
|
|
})
|
|
|
|
struct list_head {
|
|
struct list_head *prev;
|
|
struct list_head *next;
|
|
};
|
|
|
|
#define LIST_INIT(list) { &(list), &(list) }
|
|
|
|
static inline void list_init(struct list_head *list)
|
|
{
|
|
list->prev = list->next = list;
|
|
}
|
|
|
|
static inline bool list_empty(struct list_head *list)
|
|
{
|
|
return list->next == list;
|
|
}
|
|
|
|
static inline void list_add(struct list_head *list, struct list_head *item)
|
|
{
|
|
struct list_head *prev = list->prev;
|
|
|
|
item->next = list;
|
|
item->prev = prev;
|
|
|
|
prev->next = list->prev = item;
|
|
}
|
|
|
|
static inline void list_del(struct list_head *item)
|
|
{
|
|
item->prev->next = item->next;
|
|
item->next->prev = item->prev;
|
|
}
|
|
|
|
#define list_for_each(item, list) \
|
|
for (item = (list)->next; item != list; item = item->next)
|
|
|
|
#define list_for_each_safe(item, next, list) \
|
|
for (item = (list)->next, next = item->next; item != list; item = next, next = item->next)
|
|
|
|
#define list_entry(item, type, member) \
|
|
container_of(item, type, member)
|
|
|
|
#define list_entry_first(list, type, member) \
|
|
container_of((list)->next, type, member)
|
|
|
|
#define list_entry_next(item, member) \
|
|
container_of((item)->member.next, typeof(*(item)), member)
|
|
|
|
#define list_for_each_entry(item, list, member) \
|
|
for (item = list_entry_first(list, typeof(*(item)), member); \
|
|
&item->member != list; \
|
|
item = list_entry_next(item, member))
|
|
|
|
#endif
|