X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=lib%2Flist%2Flist.c;h=9b33561cbe891c6d3e014bd163e67868067fb736;hp=d9bc5324f25a645223a496de0292188e02da7cb1;hb=45e9e7a53540e87e2129bb11fd853501131fb795;hpb=32e6a41f33e5576716b351bd473a27939fe94fa1 diff --git a/lib/list/list.c b/lib/list/list.c index d9bc532..9b33561 100644 --- a/lib/list/list.c +++ b/lib/list/list.c @@ -7,13 +7,20 @@ void list_init(struct list *list) list->head.prev = &list->head; } -void list_add(struct list *list, struct list_item *new) +void list_insert_before(struct list_item *next, struct list_item *item) { - new->next = list->head.next; - new->prev = &list->head; + item->next = next; + item->prev = next->prev; + next->prev->next = item; + next->prev = item; +} - list->head.next->prev = new; - list->head.next = new; +void list_insert_after(struct list_item *prev, struct list_item *item) +{ + item->next = prev->next; + item->prev = prev; + prev->next->prev = item; + prev->next = item; } void list_remove(struct list_item *item) @@ -21,4 +28,3 @@ void list_remove(struct list_item *item) item->next->prev = item->prev; item->prev->next = item->next; } -