111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
/*
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* Copyright (c) 2010, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: rtimer-arch.c,v 1.4 2010/03/23 13:13:17 fros4943 Exp $
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*/
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#include <signal.h>
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#include <sys/time.h>
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#include <stddef.h>
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#include "sys/rtimer.h"
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#include "sys/clock.h"
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#include "sys/cooja_mt.h"
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#include "lib/simEnvChange.h"
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#define DEBUG 0
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#if DEBUG
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#include <stdio.h>
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#define PRINTF(...) printf(__VA_ARGS__)
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#else
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#define PRINTF(...)
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#endif
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extern clock_time_t simCurrentTime;
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static int pending_rtimer = 0;
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static rtimer_clock_t next_rtimer = 0;
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static clock_time_t last_rtimer_now = 0;
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/*---------------------------------------------------------------------------*/
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void
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rtimer_arch_init(void)
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{
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next_rtimer = 0;
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last_rtimer_now = 0;
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pending_rtimer = 0;
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}
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/*---------------------------------------------------------------------------*/
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void
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rtimer_arch_schedule(rtimer_clock_t t)
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{
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next_rtimer = t;
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pending_rtimer = 1;
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}
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/*---------------------------------------------------------------------------*/
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rtimer_clock_t
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rtimer_arch_next(void)
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{
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return next_rtimer;
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}
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/*---------------------------------------------------------------------------*/
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int
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rtimer_arch_pending(void)
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{
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return pending_rtimer;
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}
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/*---------------------------------------------------------------------------*/
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int
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rtimer_arch_check(void)
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{
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if (simCurrentTime == next_rtimer) {
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/* Execute rtimer */
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pending_rtimer = 0;
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rtimer_run_next();
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return 1;
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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rtimer_clock_t
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rtimer_arch_now(void)
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{
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if(last_rtimer_now == simCurrentTime) {
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/* Yield to COOJA, to allow time to change */
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simProcessRunValue = 1;
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simNextExpirationTime = simCurrentTime + 1;
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cooja_mt_yield();
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}
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last_rtimer_now = simCurrentTime;
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return simCurrentTime;
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}
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/*---------------------------------------------------------------------------*/
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