* $Id$
 * Copyright (C) 2001-2003 FhG Fokus
 * This file is part of ser, a free SIP server.
 * ser 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
 * For a license to use the ser software under conditions
 * other than those described here, or to purchase support for this
 * software, please contact iptel.org by e-mail at the following addresses:
 *    info@iptel.org
 * ser is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * 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 Street, Fifth Floor, Boston, MA  02110-1301  USA
 * History:
 * --------

#ifndef _PIKE_TIMER_H
#define _PIKE_TIMER_H

struct list_link {
	struct list_link *next;
	struct list_link *prev;

#define has_timer_set(_ll) \
	((_ll)->prev || (_ll)->next)

#define is_list_empty(_head) \
	((_head)->next == (_head))

void append_to_timer(struct list_link *head, struct list_link *ll );

void remove_from_timer(struct list_link *head, struct list_link *ll);

void update_in_timer(struct list_link *head, struct list_link *ll);

void check_and_split_timer(struct list_link *head, int time,
		struct list_link *split, unsigned char *mask);