timer.h

Go to the documentation of this file.
00001 
00027 /*
00028  * Copyright (c) 2004, Swedish Institute of Computer Science.
00029  * All rights reserved.
00030  *
00031  * Redistribution and use in source and binary forms, with or without
00032  * modification, are permitted provided that the following conditions
00033  * are met:
00034  * 1. Redistributions of source code must retain the above copyright
00035  *    notice, this list of conditions and the following disclaimer.
00036  * 2. Redistributions in binary form must reproduce the above copyright
00037  *    notice, this list of conditions and the following disclaimer in the
00038  *    documentation and/or other materials provided with the distribution.
00039  * 3. Neither the name of the Institute nor the names of its contributors
00040  *    may be used to endorse or promote products derived from this software
00041  *    without specific prior written permission.
00042  *
00043  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00044  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00045  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00046  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00047  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00048  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00049  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00050  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00051  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00052  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00053  * SUCH DAMAGE.
00054  *
00055  * This file is part of the uIP TCP/IP stack
00056  *
00057  * Author: Adam Dunkels <adam@sics.se>
00058  *
00059  * $Id: timer.h,v 1.3 2006/06/11 21:46:39 adam Exp $
00060  */
00061 #ifndef __TIMER_H__
00062 #define __TIMER_H__
00063 
00064 #include "clock.h"
00065 
00074 struct timer {
00075   clock_time_t start;
00076   clock_time_t interval;
00077 };
00078 
00079 void timer_set(struct timer *t, clock_time_t interval);
00080 void timer_reset(struct timer *t);
00081 void timer_restart(struct timer *t);
00082 int timer_expired(struct timer *t);
00083 
00084 #endif /* __TIMER_H__ */
00085