activemessageaddressc.nc

tinyos-2.x.rar

// $Id: ActiveMessageAddressC.nc,v 1.5 2008/06/11 00:46:26 razvanm Exp $

/*
 * "Copyright (c) 2004-2005 The Regents of the University  of California.  
 * 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 THE UNIVERSITY OF CALIFORNIA 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 THE UNIVERSITY OF
 * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * THE UNIVERSITY OF CALIFORNIA 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 THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
 *
 * Copyright (c) 2004-2005 Intel Corporation
 * All rights reserved.
 *
 * This file is distributed under the terms in the attached INTEL-LICENSE     
 * file. If you do not find these files, copies can be found by writing to
 * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA, 
 * 94704.  Attention:  Intel License Inquiry.
 */
/*
 *
 * Authors:		Philip Levis
 * Date last modified:  $Id: ActiveMessageAddressC.nc,v 1.5 2008/06/11 00:46:26 razvanm Exp $
 *
 */

/**
 * Accessor methods for Active Messages.
 *
 * @author Philip Levis
 * @date June 19 2005
 */

module ActiveMessageAddressC  {
  provides async command am_addr_t amAddress();
  provides async command void setAmAddress(am_addr_t a);
}
implementation {
  bool set = FALSE;
  am_addr_t addr;

  async command am_addr_t amAddress() {
    if (!set) {
      addr = TOS_NODE_ID;
      set = TRUE;
    }
    return addr;
  }

  async command void setAmAddress(am_addr_t a) {
    set = TRUE;
    addr = a;
  }
}