// $Id$
-/* tab:4
+/*
* "Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
*
*/
/**
- * Component that stores the node's active message address.
+ * Component that stores the node's active message address and group ID.
*
* @author Philip Levis
- * @date June 19 2005
+ * @author David Moss
*/
-module ActiveMessageAddressC {
- provides async command am_addr_t amAddress();
- provides async command void setAmAddress(am_addr_t a);
+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() {
- return addr;
+ 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) {
- addr = a;
+ atomic addr = a;
+ signal ActiveMessageAddress.changed();
}
+
+
+ /***************** Defaults ****************/
+ /**
+ * Notification that the address of this node changed.
+ */
+ default async event void ActiveMessageAddress.changed() {
+ }
+
}