the NDN application pcon (congestion control algo)

[Wellasalwa]

Hi ,
in my congestion control algo to be implemented in the pcon.cpp , i need to calculate some parameters such as throughput and packet loss ..
i need to point to some attributes as "transmittedinterests " ," retransmittedinterestdatadelay" , "firsttransmittedinterestdatadelay" located in other files , to get its values every second . i used pointers to this parameters but it doesn't work
is some one have a solution for this
thanks