CHIP Platform LIST Driver

CHIP Platform LIST Driver 的协作图:

结构体
struct	list_head

宏定义
#define	LIST_POISON1   ((void *)0x10100100)
#define	LIST_POISON2   ((void *)0x20200200)
#define	offsetof(type, member)   ((unsigned int)&((type *)0)->member)
#define	container_of(cur, type, member)   ((type *)((char *)(cur) - offsetof(type, member)))
#define	list_entry(cur, type, member)   container_of(cur, type, member)
#define	list_first_entry(cur, type, member)   container_of((cur)->next, type, member)
#define	list_next_entry(cur, type, member)   container_of((cur)->member.next, type, member)
#define	list_for_each_entry(cur, node_type, head, member)
#define	list_for_each_entry_safe(cur, cur_next, node_type, head, member)

详细描述

宏定义说明

container_of

#define container_of	(		cur,
			type,
			member
	)		((type *)((char *)(cur) - offsetof(type, member)))

list_entry

#define list_entry	(		cur,
			type,
			member
	)		container_of(cur, type, member)

list_first_entry

#define list_first_entry	(		cur,
			type,
			member
	)		container_of((cur)->next, type, member)

list_for_each_entry

#define list_for_each_entry	(		cur,
			node_type,
			head,
			member
	)

值:

    for ((cur) = list_first_entry(head, node_type, member); \
         &(cur)->member != (head);                          \
         (cur) = list_next_entry(cur, node_type, member))

list_for_each_entry_safe

#define list_for_each_entry_safe	(		cur,
			cur_next,
			node_type,
			head,
			member
	)

值:

    for ((cur) = list_first_entry(head, node_type, member),              \
         (cur_next) = list_next_entry(cur, node_type, member);           \
         &(cur)->member != (head);                                       \
         (cur) = (cur_next), (cur_next) = list_next_entry(cur, node_type, member))

list_next_entry

#define list_next_entry	(		cur,
			type,
			member
	)		container_of((cur)->member.next, type, member)

LIST_POISON1

#define LIST_POISON1   ((void *)0x10100100)

LIST_POISON2

#define LIST_POISON2   ((void *)0x20200200)

offsetof

#define offsetof	(		type,
			member
	)		((unsigned int)&((type *)0)->member)