* {
* struct child *c;
*
- * printf("%s (%u children):\n", p->name, parent->num_children);
+ * printf("%s (%u children):\n", p->name, p->num_children);
* list_check(&p->children, "bad child list");
* list_for_each(&p->children, c, list)
* printf(" -> %s\n", c->name);
#define debug_list(h) (h)
#endif
+/**
+ * LIST_HEAD - define and initalize an empty list_head
+ * @name: the name of the list.
+ *
+ * The LIST_HEAD macro defines a list_head and initializes it to an empty
+ * list. It can be prepended by "static" to define a static list_head.
+ *
+ * Example:
+ * static LIST_HEAD(my_global_list);
+ */
+#define LIST_HEAD(name) \
+ struct list_head name = { { &name.n, &name.n } }
+
/**
* list_head_init - initialize a list_head
* @h: the list_head to set to the empty list
*
* Example:
+ * ...
+ * struct parent *parent = malloc(sizeof(*parent));
+ *
* list_head_init(&parent->children);
* parent->num_children = 0;
*/
h->n.next = h->n.prev = &h->n;
}
-/**
- * LIST_HEAD - define and initalized empty list_head
- * @name: the name of the list.
- *
- * The LIST_HEAD macro defines a list_head and initializes it to an empty
- * list. It can be prepended by "static" to define a static list_head.
- *
- * Example:
- * // Header:
- * extern struct list_head my_list;
- *
- * // C file:
- * LIST_HEAD(my_list);
- */
-#define LIST_HEAD(name) \
- struct list_head name = { { &name.n, &name.n } }
-
/**
* list_add - add an entry at the start of a linked list.
* @h: the list_head to add the node to
*
* The list_node does not need to be initialized; it will be overwritten.
* Example:
+ * struct child *child;
+ *
* list_add(&parent->children, &child->list);
* parent->num_children++;
*/
* @member: the list_node member of the type
*
* Example:
- * struct child *c;
* // First list entry is children.next; convert back to child.
- * c = list_entry(parent->children.next, struct child, list);
+ * child = list_entry(parent->children.n.next, struct child, list);
+ *
+ * See Also:
+ * list_top(), list_for_each()
*/
#define list_entry(n, type, member) container_of(n, type, member)
* a for loop, so you can break and continue as normal.
*
* Example:
- * struct child *c;
- * list_for_each(&parent->children, c, list)
- * printf("Name: %s\n", c->name);
+ * list_for_each(&parent->children, child, list)
+ * printf("Name: %s\n", child->name);
*/
#define list_for_each(h, i, member) \
for (i = container_of_var(debug_list(h)->n.next, i, member); \
* @nxt is used to hold the next element, so you can delete @i from the list.
*
* Example:
- * struct child *c, *n;
- * list_for_each_safe(&parent->children, c, n, list) {
- * list_del(&c->list);
+ * struct child *next;
+ * list_for_each_safe(&parent->children, child, next, list) {
+ * list_del(&child->list);
* parent->num_children--;
* }
*/