kolibrios-fun/contrib/media/fplay/winlib/link.h
Sergey Semyonov (Serge) fc65c2518c Fplay: h264 hardware decoding and output.
git-svn-id: svn://kolibrios.org@6133 a494cfbc-eb01-0410-851d-a64ba20cac60
2016-02-03 23:55:46 +00:00

61 lines
1.2 KiB
C

typedef struct link
{
struct link *prev;
struct link *next;
}link_t;
#define LIST_INITIALIZE(name) \
link_t name = { .prev = &name, .next = &name }
#define list_get_instance(link, type, member) \
((type *)(((u8_t *)(link)) - ((u8_t *)&(((type *)NULL)->member))))
static inline void link_initialize(link_t *link)
{
link->prev = NULL;
link->next = NULL;
}
static inline void list_initialize(link_t *head)
{
head->prev = head;
head->next = head;
}
static inline void list_append(link_t *link, link_t *head)
{
link->prev = head->prev;
link->next = head;
head->prev->next = link;
head->prev = link;
}
static inline void list_remove(link_t *link)
{
link->next->prev = link->prev;
link->prev->next = link->next;
link_initialize(link);
}
static inline int llist_empty(link_t *head)
{
return head->next == head ? 1 : 0;
}
static inline void list_prepend(link_t *link, link_t *head)
{
link->next = head->next;
link->prev = head;
head->next->prev = link;
head->next = link;
}
static inline void list_insert(link_t *new, link_t *old)
{
new->prev = old->prev;
new->next = old;
new->prev->next = new;
old->prev = new;
}