0c514f8f31
git-svn-id: svn://svn.openwrt.org/openwrt/packages@8288 3c298f89-4303-0410-b956-a3cf2f4a3e73
275 lines
7.8 KiB
Diff
275 lines
7.8 KiB
Diff
diff -urN batmand-adv_0.1-alpha-rv466_sources.orig/list.h batmand-adv_0.1-alpha-rv466_sources/list.h
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--- batmand-adv_0.1-alpha-rv466_sources.orig/list.h 1970-01-01 01:00:00.000000000 +0100
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+++ batmand-adv_0.1-alpha-rv466_sources/list.h 2007-07-31 21:56:31.633434504 +0100
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@@ -0,0 +1,270 @@
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+#ifndef _LINUX_LIST_H
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+#define _LINUX_LIST_H
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+
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+/*
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+ * XXX: Resolve conflict between this file and <sys/queue.h> on BSD systems.
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+ */
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+#ifdef LIST_HEAD
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+#undef LIST_HEAD
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+#endif
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+
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+/*
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+ * Simple doubly linked list implementation.
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+ *
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+ * Some of the internal functions ("__xxx") are useful when
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+ * manipulating whole lists rather than single entries, as
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+ * sometimes we already know the next/prev entries and we can
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+ * generate better code by using them directly rather than
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+ * using the generic single-entry routines.
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+ */
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+
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+struct list_head {
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+ struct list_head *next, *prev;
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+};
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+
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+#define LIST_HEAD_INIT(name) { &(name), &(name) }
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+
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+#define LIST_HEAD(name) \
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+ struct list_head name = LIST_HEAD_INIT(name)
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+
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+#define INIT_LIST_HEAD(ptr) do { \
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+ (ptr)->next = (ptr); (ptr)->prev = (ptr); \
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+} while (0)
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+
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+/*
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+ * Insert a new entry between two known consecutive entries.
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+ *
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+ * This is only for internal list manipulation where we know
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+ * the prev/next entries already!
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+ */
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+static inline void __list_add(struct list_head *new,
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+ struct list_head *prev,
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+ struct list_head *next)
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+{
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+ next->prev = new;
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+ new->next = next;
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+ new->prev = prev;
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+ prev->next = new;
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+}
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+
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+/**
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+ * list_add - add a new entry
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+ * @new: new entry to be added
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+ * @head: list head to add it after
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+ *
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+ * Insert a new entry after the specified head.
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+ * This is good for implementing stacks.
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+ */
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+static inline void list_add(struct list_head *new, struct list_head *head)
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+{
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+ __list_add(new, head, head->next);
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+}
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+
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+/**
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+ * list_add_tail - add a new entry
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+ * @new: new entry to be added
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+ * @head: list head to add it before
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+ *
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+ * Insert a new entry before the specified head.
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+ * This is useful for implementing queues.
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+ */
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+static inline void list_add_tail(struct list_head *new, struct list_head *head)
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+{
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+ __list_add(new, head->prev, head);
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+}
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+
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+/*
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+ * Delete a list entry by making the prev/next entries
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+ * point to each other.
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+ *
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+ * This is only for internal list manipulation where we know
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+ * the prev/next entries already!
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+ */
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+static inline void __list_del(struct list_head *prev, struct list_head *next)
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+{
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+ next->prev = prev;
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+ prev->next = next;
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+}
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+
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+/**
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+ * list_del - deletes entry from list.
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+ * @entry: the element to delete from the list.
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+ * Note: list_empty on entry does not return true after this, the entry is in an undefined state.
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+ */
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+static inline void list_del(struct list_head *entry)
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+{
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+ __list_del(entry->prev, entry->next);
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+ entry->next = (void *) 0;
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+ entry->prev = (void *) 0;
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+}
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+
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+static inline void list_add_before( struct list_head *list, struct list_head *pos_node, struct list_head *new_node ) {
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+
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+ if ( pos_node->prev != NULL )
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+ pos_node->prev->next = new_node;
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+ else
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+ list->next = new_node;
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+
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+ new_node->prev = pos_node->prev;
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+ new_node->next = pos_node;
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+
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+ pos_node->prev = new_node;
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+
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+}
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+
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+/**
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+ * list_del_init - deletes entry from list and reinitialize it.
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+ * @entry: the element to delete from the list.
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+ */
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+static inline void list_del_init(struct list_head *entry)
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+{
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+ __list_del(entry->prev, entry->next);
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+ INIT_LIST_HEAD(entry);
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+}
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+
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+/**
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+ * list_move - delete from one list and add as another's head
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+ * @list: the entry to move
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+ * @head: the head that will precede our entry
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+ */
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+static inline void list_move(struct list_head *list, struct list_head *head)
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+{
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+ __list_del(list->prev, list->next);
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+ list_add(list, head);
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+}
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+
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+/**
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+ * list_move_tail - delete from one list and add as another's tail
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+ * @list: the entry to move
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+ * @head: the head that will follow our entry
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+ */
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+static inline void list_move_tail(struct list_head *list,
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+ struct list_head *head)
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+{
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+ __list_del(list->prev, list->next);
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+ list_add_tail(list, head);
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+}
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+
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+/**
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+ * list_empty - tests whether a list is empty
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+ * @head: the list to test.
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+ */
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+static inline int list_empty(struct list_head *head)
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+{
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+ return head->next == head;
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+}
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+
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+static inline void __list_splice(struct list_head *list,
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+ struct list_head *head)
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+{
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+ struct list_head *first = list->next;
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+ struct list_head *last = list->prev;
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+ struct list_head *at = head->next;
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+
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+ first->prev = head;
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+ head->next = first;
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+
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+ last->next = at;
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+ at->prev = last;
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+}
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+
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+/**
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+ * list_splice - join two lists
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+ * @list: the new list to add.
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+ * @head: the place to add it in the first list.
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+ */
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+static inline void list_splice(struct list_head *list, struct list_head *head)
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+{
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+ if (!list_empty(list))
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+ __list_splice(list, head);
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+}
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+
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+/**
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+ * list_splice_init - join two lists and reinitialise the emptied list.
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+ * @list: the new list to add.
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+ * @head: the place to add it in the first list.
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+ *
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+ * The list at @list is reinitialised
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+ */
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+static inline void list_splice_init(struct list_head *list,
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+ struct list_head *head)
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+{
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+ if (!list_empty(list)) {
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+ __list_splice(list, head);
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+ INIT_LIST_HEAD(list);
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+ }
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+}
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+
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+/**
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+ * list_entry - get the struct for this entry
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+ * @ptr: the &struct list_head pointer.
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+ * @type: the type of the struct this is embedded in.
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+ * @member: the name of the list_struct within the struct.
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+ */
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+#define list_entry(ptr, type, member) \
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+ ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
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+
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+/**
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+ * list_for_each - iterate over a list
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+ * @pos: the &struct list_head to use as a loop counter.
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+ * @head: the head for your list.
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+ */
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+#define list_for_each(pos, head) \
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+ for (pos = (head)->next; pos != (head); \
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+ pos = pos->next)
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+/**
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+ * list_for_each_prev - iterate over a list backwards
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+ * @pos: the &struct list_head to use as a loop counter.
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+ * @head: the head for your list.
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+ */
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+#define list_for_each_prev(pos, head) \
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+ for (pos = (head)->prev; pos != (head); \
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+ pos = pos->prev)
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+
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+/**
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+ * list_for_each_safe - iterate over a list safe against removal of list entry
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+ * @pos: the &struct list_head to use as a loop counter.
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+ * @n: another &struct list_head to use as temporary storage
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+ * @head: the head for your list.
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+ */
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+#define list_for_each_safe(pos, n, head) \
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+ for (pos = (head)->next, n = pos->next; pos != (head); \
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+ pos = n, n = pos->next)
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+
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+/**
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+ * list_for_each_entry - iterate over list of given type
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+ * @pos: the type * to use as a loop counter.
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+ * @head: the head for your list.
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+ * @member: the name of the list_struct within the struct.
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+ */
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+#define list_for_each_entry(pos, head, member) \
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+ for (pos = list_entry((head)->next, typeof(*pos), member); \
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+ &pos->member != (head); \
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+ pos = list_entry(pos->member.next, typeof(*pos), member))
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+
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+/**
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+ * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
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+ * @pos: the type * to use as a loop counter.
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+ * @n: another type * to use as temporary storage
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+ * @head: the head for your list.
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+ * @member: the name of the list_struct within the struct.
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+ */
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+#define list_for_each_entry_safe(pos, n, head, member) \
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+ for (pos = list_entry((head)->next, typeof(*pos), member), \
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+ n = list_entry(pos->member.next, typeof(*pos), member); \
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+ &pos->member != (head); \
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+ pos = n, n = list_entry(n->member.next, typeof(*n), member))
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+
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+/**
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+ * list_for_each_entry_continue - iterate over list of given type
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+ * continuing after existing point
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+ * @pos: the type * to use as a loop counter.
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+ * @head: the head for your list.
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+ * @member: the name of the list_struct within the struct.
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+ */
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+#define list_for_each_entry_continue(pos, head, member) \
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+ for (pos = list_entry(pos->member.next, typeof(*pos), member); \
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+ &pos->member != (head); \
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+ pos = list_entry(pos->member.next, typeof(*pos), member))
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+
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+#endif
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