67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
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/*
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* File : list.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2009-10-16 Bernard first version
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*/
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#ifndef __RTGUI_LIST_H__
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#define __RTGUI_LIST_H__
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#include <rtgui/rtgui.h>
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struct rtgui_list_node
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{
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struct rtgui_list_node *next;
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};
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typedef struct rtgui_list_node rtgui_list_t;
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rt_inline void rtgui_list_init(rtgui_list_t *l)
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{
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l->next = (struct rtgui_list_node *)0;
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}
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rt_inline void rtgui_list_append(rtgui_list_t *l, rtgui_list_t *n)
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{
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struct rtgui_list_node *node;
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node = l;
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while (node->next) node = node->next;
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/* append the node to the tail */
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node->next = n;
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n->next = (struct rtgui_list_node *) 0;
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}
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rt_inline void rtgui_list_insert(rtgui_list_t *l, rtgui_list_t *n)
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{
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n->next = l->next;
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l->next = n;
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}
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rt_inline rtgui_list_t *rtgui_list_remove(rtgui_list_t *l, rtgui_list_t *n)
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{
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/* remove slist head */
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struct rtgui_list_node *node = l;
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while (node->next && node->next != n) node = node->next;
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/* remove node */
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if (node->next != (rtgui_list_t *)0) node->next = node->next->next;
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return l;
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}
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#define rtgui_list_entry(node, type, member) \
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((type *)((char*)(node)-(unsigned long)(&((type *)0)->member)))
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#define rtgui_list_foreach(node, list) \
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for ((node) = (list)->next; (node) != RT_NULL; (node) = (node)->next)
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#endif
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