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#ifndef MRAT_LIST_H
#define MRAT_LIST_H
#include <stddef.h>
#ifndef container_of
#define container_of(ptr, type, member) ({ \
const typeof(((type*)0)->member)*__mptr = (ptr); \
(type*)((char*)__mptr - offsetof(type, member)); })
#endif
struct list_head {
struct list_head *next;
struct list_head *prev;
};
static inline void list_add(struct list_head *new, struct list_head *head) {
new->prev = head;
new->next = head->next;
head->next = new;
if (head->prev != NULL)
head->prev->next = new;
}
static inline void list_del(struct list_head *item) {
struct list_head *next = item->next;
struct list_head *prev = item->prev;
if (next != NULL)
next->prev = prev;
if (prev != NULL)
prev->next = next;
item->next = NULL;
item->prev = NULL;
}
#endif
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