Changeset c14762e in mainline for kernel/generic/src/adt/list.c

Timestamp:

2012-07-12T16:43:38Z (12 years ago)

Author:

Adam Hraska <adam.hraska+hos@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e8471b9

Parents:

2e16033

Message:

adt: Removed duplicate implementations of list_concat().

File:

• kernel/generic/src/adt/list.c (modified) (1 diff)

kernel/generic/src/adt/list.c

@@ -68 +68 @@
 }
 
-/** Concatenate two lists
- *
- * Concatenate lists @a list1 and @a list2, producing a single
- * list @a list1 containing items from both (in @a list1, @a list2
- * order) and empty list @a list2.
- *
- * @param list1         First list and concatenated output
- * @param list2         Second list and empty output.
- *
+/** Moves items of one list into another after the specified item.
+ * 
+ * Inserts all items of @a list after item at @a pos in another list. 
+ * Both lists may be empty. 
+ * 
+ * @param list Source list to move after pos. Empty afterwards.
+ * @param pos Source items will be placed after this item.
  */
-void list_concat(list_t *list1, list_t *list2)
+void list_splice(list_t *list, link_t *pos)
 {
-        if (list_empty(list2))
+        if (list_empty(list)) 
                 return;
-
-        list2->head.next->prev = list1->head.prev;
-        list2->head.prev->next = &list1->head;
-        list1->head.prev->next = list2->head.next;
-        list1->head.prev = list2->head.prev;
-        list_initialize(list2);
+        
+        /* Attach list to destination. */
+        list->head.next->prev = pos;
+        list->head.prev->next = pos->next;
+        
+        /* Link destination list to the added list. */
+        pos->next->prev = list->head.prev;
+        pos->next = list->head.next;
+        
+        list_initialize(list);
 }