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#ifndef __LIST_H
#define __LIST_H
#include <stdbool.h>
struct list_head {
struct list_head *next, *prev;
};
#define LIST_HEAD_INIT(name) { &(name), &(name) }
#define LIST_HEAD(name) \
struct list_head name = LIST_HEAD_INIT(name)
static inline void INIT_LIST_HEAD(struct list_head *list)
{
list->next = list;
list->prev = list;
}
static inline void
list_add (struct list_head *entry, struct list_head *head)
{
struct list_head *next = head->next;
entry->prev = head;
entry->next = next;
next->prev = head->next = entry;
}
static inline void
list_del (struct list_head *entry)
{
struct list_head *next = entry->next;
struct list_head *prev = entry->prev;
next->prev = prev;
prev->next = next;
}
static inline void
list_del_init (struct list_head *entry)
{
list_del(entry);
INIT_LIST_HEAD(entry);
}
static inline bool
list_empty (const struct list_head *head)
{
return head->next == head;
}
#define list_entry(ptr, type, member) \
(type *)( (char *)(ptr) - offsetof(type, member) )
#endif /* __LIST_H */
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