sharedresourcedemoappc.nc

tinyos-2.x.rar

/*
 * "Copyright (c) 2006 Washington University in St. Louis.
 * 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 following
 * two paragraphs and the author appear in all copies of this software.
 *
 * IN NO EVENT SHALL WASHINGTON UNIVERSITY IN ST. LOUIS BE LIABLE TO ANY PARTY
 * FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
 * OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF WASHINGTON
 * UNIVERSITY IN ST. LOUIS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * WASHINGTON UNIVERSITY IN ST. LOUIS SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
 * ON AN "AS IS" BASIS, AND WASHINGTON UNIVERSITY IN ST. LOUIS HAS NO
 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
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 */
 
/**
 *
 * This application is used to test the use of Shared Resources.  
 * Three Resource users are created and all three request
 * control of the resource before any one of them is granted it.
 * Once the first user is granted control of the resource, it performs
 * some operation on it.  Once this operation has completed, a timer
 * is set to allow this user to have control of it for a specific
 * amount of time.  Once this timer expires, the resource is released
 * and then immediately requested again.  Upon releasing the resource
 * control will be granted to the next user that has requested it in 
 * round robin order.  Initial requests are made by the three resource 
 * users in the following order.<br>
 * <li> Resource 0
 * <li> Resource 2
 * <li> Resource 1
 * <br>
 * It is expected then that using a round robin policy, control of the
 * resource will be granted in the order of 0,1,2 and the Leds
 * corresponding to each resource will flash whenever this occurs.<br>
 * <li> Led 0 -> Resource 0
 * <li> Led 1 -> Resource 1
 * <li> Led 2 -> Resource 2
 * <br>
 * 
 * @author Kevin Klues ([e-mail])
 * @version $Revision: 1.1 $
 * @date $Date: 2007/07/13 23:43:17 $
 */
 
configuration SharedResourceDemoAppC{
}
implementation {
  components MainC,LedsC, SharedResourceDemoC as App,
  new TimerMilliC() as Timer0,
  new TimerMilliC() as Timer1,
  new TimerMilliC() as Timer2;
  App -> MainC.Boot;
  App.Leds -> LedsC;
  App.Timer0 -> Timer0;
  App.Timer1 -> Timer1;
  App.Timer2 -> Timer2;
  
  components
  new SharedResourceC() as Resource0,
  new SharedResourceC() as Resource1, 
  new SharedResourceC() as Resource2;
  App.Resource0 -> Resource0;
  App.Resource1 -> Resource1;
  App.Resource2 -> Resource2;
  App.ResourceOperations0 -> Resource0;
  App.ResourceOperations1 -> Resource1;
  App.ResourceOperations2 -> Resource2;
}