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// $Id: ActiveMessageAddressC.nc,v 1.10 2010-06-29 22:07:56 scipio Exp $
/*
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - Neither the name of the University of California 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 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 HOLDER 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.
*
* 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.
*
* Date last modified: $Id: ActiveMessageAddressC.nc,v 1.10 2010-06-29 22:07:56 scipio Exp $
*
*/
/**
* Component that stores the node's active message address and group ID.
*
* @author Philip Levis
* @author David Moss
*/
module ActiveMessageAddressC @safe() {
provides {
interface ActiveMessageAddress;
async command am_addr_t amAddress();
async command void setAmAddress(am_addr_t a);
}
}
implementation {
/** Node address */
am_addr_t addr = TOS_AM_ADDRESS;
/** Group address */
am_group_t group = TOS_AM_GROUP;
/***************** ActiveMessageAddress Commands ****************/
/**
* @return the active message address of this node
*/
async command am_addr_t ActiveMessageAddress.amAddress() {
return call amAddress();
}
/**
* Set the active message address of this node
* @param group The node's group ID
* @param addr The node's active message address
*/
async command void ActiveMessageAddress.setAddress(am_group_t myGroup, am_addr_t myAddr) {
atomic {
addr = myAddr;
group = myGroup;
}
signal ActiveMessageAddress.changed();
}
/**
* @return the group address of this node
*/
async command am_group_t ActiveMessageAddress.amGroup() {
am_group_t myGroup;
atomic myGroup = group;
return myGroup;
}
/***************** Deprecated Commands ****************/
/**
* Get the node's default AM address.
* @return address
* @deprecated Use ActiveMessageAddress.amAddress() instead
*/
async command am_addr_t amAddress() {
am_addr_t myAddr;
atomic myAddr = addr;
return myAddr;
}
/**
* Set the node's default AM address.
*
* @param a - the address.
* @deprecated Use ActiveMessageAddress.setAddress() instead
*/
async command void setAmAddress(am_addr_t a) {
atomic addr = a;
signal ActiveMessageAddress.changed();
}
/***************** Defaults ****************/
/**
* Notification that the address of this node changed.
*/
default async event void ActiveMessageAddress.changed() {
}
}
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