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/* SPDX-License-Identifier: BSD-3-Clause */
/*
* Copyright (c) 2016, Linaro Ltd.
*/
#ifndef __LIST_H__
#define __LIST_H__
#include <stdbool.h>
#include <stddef.h>
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;
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 = item;
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, tmp, list) \
for (item = (list)->next, tmp = item->next; item != list; item = tmp, tmp = 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))
#define list_for_each_entry_safe(item, next, list, member) \
for (item = list_entry_first(list, typeof(*(item)), member), \
next = list_entry_next(item, member); \
&item->member != list; \
item = next, \
next = list_entry_next(item, member)) \
#endif
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