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Diffstat (limited to 'release/src/router/busybox/e2fsprogs/old_e2fsprogs/blkid/list.h')
-rw-r--r--release/src/router/busybox/e2fsprogs/old_e2fsprogs/blkid/list.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/release/src/router/busybox/e2fsprogs/old_e2fsprogs/blkid/list.h b/release/src/router/busybox/e2fsprogs/old_e2fsprogs/blkid/list.h
new file mode 100644
index 00000000..a24baaa9
--- /dev/null
+++ b/release/src/router/busybox/e2fsprogs/old_e2fsprogs/blkid/list.h
@@ -0,0 +1,73 @@
+/* vi: set sw=4 ts=4: */
+#if !defined(_BLKID_LIST_H) && !defined(LIST_HEAD)
+#define BLKID_LIST_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * 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 list_head {
+ struct list_head *next, *prev;
+};
+
+#define LIST_HEAD_INIT(name) { &(name), &(name) }
+
+#define LIST_HEAD(name) \
+ struct list_head name = LIST_HEAD_INIT(name)
+
+#define INIT_LIST_HEAD(ptr) do { \
+ (ptr)->next = (ptr); (ptr)->prev = (ptr); \
+} while (0)
+
+void __list_add(struct list_head * add, struct list_head * prev, struct list_head * next);
+void list_add(struct list_head *add, struct list_head *head);
+void list_add_tail(struct list_head *add, struct list_head *head);
+void __list_del(struct list_head * prev, struct list_head * next);
+void list_del(struct list_head *entry);
+void list_del_init(struct list_head *entry);
+int list_empty(struct list_head *head);
+void list_splice(struct list_head *list, struct list_head *head);
+
+/**
+ * list_entry - get the struct for this entry
+ * @ptr: the &struct list_head pointer.
+ * @type: the type of the struct this is embedded in.
+ * @member: the name of the list_struct within the struct.
+ */
+#define list_entry(ptr, type, member) \
+ ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
+
+/**
+ * list_for_each - iterate over elements in a list
+ * @pos: the &struct list_head to use as a loop counter.
+ * @head: the head for your list.
+ */
+#define list_for_each(pos, head) \
+ for (pos = (head)->next; pos != (head); pos = pos->next)
+
+/**
+ * list_for_each_safe - iterate over elements in a list, but don't dereference
+ * pos after the body is done (in case it is freed)
+ * @pos: the &struct list_head to use as a loop counter.
+ * @pnext: the &struct list_head to use as a pointer to the next item.
+ * @head: the head for your list (not included in iteration).
+ */
+#define list_for_each_safe(pos, pnext, head) \
+ for (pos = (head)->next, pnext = pos->next; pos != (head); \
+ pos = pnext, pnext = pos->next)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif