k-chow/k/list.h

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#ifndef LIST_H
#define LIST_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_remove(struct list *elm);
int list_empty(const struct list *list);
#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_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))
#endif /* LIST_H */