kservice.h.svn-base

来自「RT-Thread是发展中的下一代微内核嵌入式实时操作系统」· SVN-BASE 代码 · 共 95 行

#ifndef __RT_SERVICE_H__
#define __RT_SERVICE_H__

#include <rtthread.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * rt_list_init - initialize a list
 *
 * @l: list to be initialized
 */
rt_inline void rt_list_init(rt_list_t *l)
{
	l->next = l->prev = l;
}

/**
 * rt_list_insert_after - insert a node after a list
 *
 * @n: new node to be inserted
 * @l: list to insert it
 */
rt_inline void rt_list_insert_after(rt_list_t *l, rt_list_t *n)
{
	l->next->prev = n;
	n->next = l->next;

	l->next = n;
	n->prev = l;
}

/**
 * rt_list_insert_before - insert a node before a list 
 *
 * @n: new node to be inserted
 * @l: list to insert it
 */
rt_inline void rt_list_insert_before(rt_list_t *l, rt_list_t *n)
{
	l->prev->next = n;
	n->prev = l->prev;

	l->prev = n;
	n->next = l;
}

/**
 * rt_list_remove - remove node from list.
 * @l: the node to remove from the list.
 */
rt_inline void rt_list_remove(rt_list_t *n)
{
	n->next->prev = n->prev;
	n->prev->next = n->next;

	n->next = 0;
	n->prev = 0;
}

/**
 * rt_list_isempty - tests whether a list is empty
 * @l: the list to test.
 */
rt_inline int rt_list_isempty(const rt_list_t *l)
{
	return l->next == l;
}

/**
 * rt_list_entry - get the struct for this entry
 * @node: the entry point
 * @type: the type of structure
 * @member: the name of list in structure
 */
#define rt_list_entry(node, type, member) \
    ((type *)((char *)(node) - (unsigned long)(&((type *)0)->member)))

/*
 * memory & string copy & move
 */
void*     rt_memset(void *src, int c, rt_uint16 n);
void*     rt_memcpy(void *dest, const void *src, rt_uint16 n);

rt_uint16 rt_strncmp(const char * cs, const char * ct, rt_uint16 count);
rt_uint16 rt_strlen (const char *src);

#ifdef __cplusplus
}
#endif

#endif