mspdebug/util/list.c

45 lines
1.2 KiB
C

/* MSPDebug - debugging tool for MSP430 MCUs
* Copyright (C) 2009, 2010 Daniel Beer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include "list.h"
void list_init(struct list_node *head)
{
head->next = head;
head->prev = head;
}
void list_insert(struct list_node *item, struct list_node *after)
{
item->next = after;
item->prev = after->prev;
after->prev->next = item;
after->prev = item;
}
void list_remove(struct list_node *item)
{
item->next->prev = item->prev;
item->prev->next = item->next;
item->prev = NULL;
item->next = NULL;
}