From d2e1446d81725c351dc73a03b397ce043fb18452 Mon Sep 17 00:00:00 2001
From: Meizu OpenSource <patchwork@meizu.com>
Date: Mon, 15 Aug 2016 10:19:42 +0800
Subject: first commit

---
 tools/firewire/list.h | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 tools/firewire/list.h

(limited to 'tools/firewire/list.h')

diff --git a/tools/firewire/list.h b/tools/firewire/list.h
new file mode 100644
index 000000000..41f4bdadf
--- /dev/null
+++ b/tools/firewire/list.h
@@ -0,0 +1,62 @@
+struct list {
+	struct list *next, *prev;
+};
+
+static inline void
+list_init(struct list *list)
+{
+	list->next = list;
+	list->prev = list;
+}
+
+static inline int
+list_empty(struct list *list)
+{
+	return list->next == list;
+}
+
+static inline void
+list_insert(struct list *link, struct list *new_link)
+{
+	new_link->prev		= link->prev;
+	new_link->next		= link;
+	new_link->prev->next	= new_link;
+	new_link->next->prev	= new_link;
+}
+
+static inline void
+list_append(struct list *list, struct list *new_link)
+{
+	list_insert((struct list *)list, new_link);
+}
+
+static inline void
+list_prepend(struct list *list, struct list *new_link)
+{
+	list_insert(list->next, new_link);
+}
+
+static inline void
+list_remove(struct list *link)
+{
+	link->prev->next = link->next;
+	link->next->prev = link->prev;
+}
+
+#define list_entry(link, type, member) \
+	((type *)((char *)(link)-(unsigned long)(&((type *)0)->member)))
+
+#define list_head(list, type, member)		\
+	list_entry((list)->next, type, member)
+
+#define list_tail(list, type, member)		\
+	list_entry((list)->prev, type, member)
+
+#define list_next(elm, member)					\
+	list_entry((elm)->member.next, typeof(*elm), member)
+
+#define list_for_each_entry(pos, list, member)			\
+	for (pos = list_head(list, typeof(*pos), member);	\
+	     &pos->member != (list);				\
+	     pos = list_next(pos, member))
+
-- 
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