blinkc.nc

tinyos-2.x.rar

/*
 * Copyright (c) 2008 Johns Hopkins University.
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose, without fee, and without written
 * agreement is hereby granted, provided that the above copyright
 * notice, the (updated) modification history and the author appear in
 * all copies of this source code.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDERS OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF USE, DATA,
 * OR PROFITS) 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.
*/

/**
 * @author Chieh-Jan Mike Liang <[e-mail]>
 *
 * This is the dynamic thread implementation of Blink.
 */

module BlinkC {
  uses {
    interface Boot;
    interface Leds;
    interface DynamicThread;
  }
}

implementation {
  tosthread_t blink1;
  tosthread_t blink2;
  tosthread_t blink3;
  uint16_t a1 = 1;
  uint16_t a2 = 2;
  uint16_t a3 = 3;

  void blink_thread(void* arg)
  {
    uint16_t *a = (uint16_t *)arg;
    
    for (;;) {
      if (*a == 1) {
        call Leds.led0Toggle();
        call DynamicThread.sleep(200);
      } else if (*a == 2) {
        call Leds.led1Toggle();
        call DynamicThread.sleep(1000);
      } else if (*a == 3) {
        call Leds.led2Toggle();
        call DynamicThread.sleep(1000);
      }
    }
  }
    
  event void Boot.booted()
  {
    call DynamicThread.create(&blink1, blink_thread, &a1, 500);
    call DynamicThread.create(&blink2, blink_thread, &a2, 500);
    call DynamicThread.create(&blink3, blink_thread, &a3, 500);
  }
}