[ns] Accessing energy state in a routing agent

[nitin kumar singh <nksingh@seas.gwu.edu>]

hi,
 I am trying to simulate routing of packets based on the energy level of nodes 
. I need to know how can one send the current energy level of the node to the 
routing agent attached to that node .
As an example when we do :
"node-config -adhocrouting DSDV "
 
We make a new Agent/DSDV and send node id as a parameter , now this id ( 
address) remains constant throughout the simulation ( I am assuming this!) 
whereas the energy level of the node changes all the time and my routing agent 
needs to know this energy level to construct packets .
 
I want to know if i pass the node itself as a parameter during the creation to 
DSDV constructor then will i be able to access 
node->energymodel()->energy_ 
and get the energy value correctly ? 
I think it boils down to if the parameter passing is by reference or by value 
between and OTcl and C++ . Is there any other way u might suggest to get to 
know the energy level of the node to which my routing agent is attached?

thanks ,

nitin