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Diffstat (limited to 'extras/mini-os/include/list.h')
-rw-r--r-- | extras/mini-os/include/list.h | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/extras/mini-os/include/list.h b/extras/mini-os/include/list.h deleted file mode 100644 index a60ae23431..0000000000 --- a/extras/mini-os/include/list.h +++ /dev/null @@ -1,190 +0,0 @@ -#ifndef _LINUX_LIST_H -#define _LINUX_LIST_H - -/* - * Simple doubly linked list implementation. - * - * Some of the internal functions ("__xxx") are useful when - * manipulating whole lists rather than single entries, as - * sometimes we already know the next/prev entries and we can - * generate better code by using them directly rather than - * using the generic single-entry routines. - */ - -struct minios_list_head { - struct minios_list_head *next, *prev; -}; - -#define MINIOS_LIST_HEAD_INIT(name) { &(name), &(name) } - -#define MINIOS_LIST_HEAD(name) \ - struct minios_list_head name = MINIOS_LIST_HEAD_INIT(name) - -#define MINIOS_INIT_LIST_HEAD(ptr) do { \ - (ptr)->next = (ptr); (ptr)->prev = (ptr); \ -} while (0) - -#define minios_list_top(head, type, member) \ -({ \ - struct minios_list_head *_head = (head); \ - minios_list_empty(_head) ? NULL : minios_list_entry(_head->next, type, member); \ -}) - -/* - * Insert a new entry between two known consecutive entries. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -static __inline__ void __minios_list_add(struct minios_list_head * new, - struct minios_list_head * prev, - struct minios_list_head * next) -{ - next->prev = new; - new->next = next; - new->prev = prev; - prev->next = new; -} - -/** - * minios_list_add - add a new entry - * @new: new entry to be added - * @head: list head to add it after - * - * Insert a new entry after the specified head. - * This is good for implementing stacks. - */ -static __inline__ void minios_list_add(struct minios_list_head *new, struct minios_list_head *head) -{ - __minios_list_add(new, head, head->next); -} - -/** - * minios_list_add_tail - add a new entry - * @new: new entry to be added - * @head: list head to add it before - * - * Insert a new entry before the specified head. - * This is useful for implementing queues. - */ -static __inline__ void minios_list_add_tail(struct minios_list_head *new, struct minios_list_head *head) -{ - __minios_list_add(new, head->prev, head); -} - -/* - * Delete a list entry by making the prev/next entries - * point to each other. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -static __inline__ void __minios_list_del(struct minios_list_head * prev, - struct minios_list_head * next) -{ - next->prev = prev; - prev->next = next; -} - -/** - * minios_list_del - deletes entry from list. - * @entry: the element to delete from the list. - * Note: minios_list_empty on entry does not return true after this, the entry is in an undefined state. - */ -static __inline__ void minios_list_del(struct minios_list_head *entry) -{ - __minios_list_del(entry->prev, entry->next); -} - -/** - * minios_list_del_init - deletes entry from list and reinitialize it. - * @entry: the element to delete from the list. - */ -static __inline__ void minios_list_del_init(struct minios_list_head *entry) -{ - __minios_list_del(entry->prev, entry->next); - MINIOS_INIT_LIST_HEAD(entry); -} - -/** - * minios_list_empty - tests whether a list is empty - * @head: the list to test. - */ -static __inline__ int minios_list_empty(struct minios_list_head *head) -{ - return head->next == head; -} - -/** - * minios_list_splice - join two lists - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static __inline__ void minios_list_splice(struct minios_list_head *list, struct minios_list_head *head) -{ - struct minios_list_head *first = list->next; - - if (first != list) { - struct minios_list_head *last = list->prev; - struct minios_list_head *at = head->next; - - first->prev = head; - head->next = first; - - last->next = at; - at->prev = last; - } -} - -/** - * minios_list_entry - get the struct for this entry - * @ptr: the &struct minios_list_head pointer. - * @type: the type of the struct this is embedded in. - * @member: the name of the minios_list_struct within the struct. - */ -#define minios_list_entry(ptr, type, member) \ - ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member))) - -/** - * minios_list_for_each - iterate over a list - * @pos: the &struct minios_list_head to use as a loop counter. - * @head: the head for your list. - */ -#define minios_list_for_each(pos, head) \ - for (pos = (head)->next; pos != (head); pos = pos->next) - -/** - * minios_list_for_each_safe - iterate over a list safe against removal of list entry - * @pos: the &struct minios_list_head to use as a loop counter. - * @n: another &struct minios_list_head to use as temporary storage - * @head: the head for your list. - */ -#define minios_list_for_each_safe(pos, n, head) \ - for (pos = (head)->next, n = pos->next; pos != (head); \ - pos = n, n = pos->next) - -/** - * minios_list_for_each_entry - iterate over list of given type - * @pos: the type * to use as a loop counter. - * @head: the head for your list. - * @member: the name of the minios_list_struct within the struct. - */ -#define minios_list_for_each_entry(pos, head, member) \ - for (pos = minios_list_entry((head)->next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = minios_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * minios_list_for_each_entry_safe - iterate over list of given type safe against removal of list entry - * @pos: the type * to use as a loop counter. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the minios_list_struct within the struct. - */ -#define minios_list_for_each_entry_safe(pos, n, head, member) \ - for (pos = minios_list_entry((head)->next, typeof(*pos), member), \ - n = minios_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = minios_list_entry(n->member.next, typeof(*n), member)) -#endif /* _LINUX_LIST_H */ - |