| /* |
| * Copyright (c) 2005, Swedish Institute of Computer Science |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the Institute nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * This file is part of the Contiki operating system. |
| * |
| */ |
| |
| /** |
| * \file |
| * Implementation of the architecture-agnostic parts of the real-time timer module. |
| * \author |
| * Adam Dunkels <adam@sics.se> |
| * |
| */ |
| |
| /** |
| * \addtogroup rt |
| * @{ |
| */ |
| |
| #include "sys/rtimer.h" |
| #include "contiki.h" |
| |
| #define DEBUG 0 |
| #if DEBUG |
| #include <stdio.h> |
| #define PRINTF(...) printf(__VA_ARGS__) |
| #else |
| #define PRINTF(...) |
| #endif |
| |
| static struct rtimer *next_rtimer; |
| |
| /*---------------------------------------------------------------------------*/ |
| void |
| rtimer_init(void) |
| { |
| rtimer_arch_init(); |
| } |
| /*---------------------------------------------------------------------------*/ |
| int |
| rtimer_set(struct rtimer *rtimer, rtimer_clock_t time, |
| rtimer_clock_t duration, |
| rtimer_callback_t func, void *ptr) |
| { |
| int first = 0; |
| |
| PRINTF("rtimer_set time %d\n", time); |
| |
| if(next_rtimer == NULL) { |
| first = 1; |
| } |
| |
| rtimer->func = func; |
| rtimer->ptr = ptr; |
| |
| rtimer->time = time; |
| next_rtimer = rtimer; |
| |
| if(first == 1) { |
| rtimer_arch_schedule(time); |
| } |
| return RTIMER_OK; |
| } |
| /*---------------------------------------------------------------------------*/ |
| void |
| rtimer_run_next(void) |
| { |
| struct rtimer *t; |
| if(next_rtimer == NULL) { |
| return; |
| } |
| t = next_rtimer; |
| next_rtimer = NULL; |
| t->func(t, t->ptr); |
| if(next_rtimer != NULL) { |
| rtimer_arch_schedule(next_rtimer->time); |
| } |
| return; |
| } |
| /*---------------------------------------------------------------------------*/ |
| |
| /** @}*/ |