Hi every body I have a problem that is so urgent for me. can anybody helps me?
I'm using NS 2.27. I want to run a CBR application from my .c code. So I add these lines of code to my agent code: ******************************************************************************** Tcl& tcl = Tcl::instance(); char * Name; /// UDP Source Name=const_cast<char *>(name()); sprintf(tcl.buffer(), "%s set sourcenode_id", Name); tcl.eval(); assert(*tcl.result()); int sourcenode_id = atoi(tcl.result()); tcl.eval("set udp1 [new Agent/UDP]"); tcl.eval("$udp1 set class_ 2"); tcl.eval("set null [new Agent/Null]"); sprintf(tcl.buffer(), "Simulator attach-agent %s $udp1", Source); tcl.eval(); char *rslt=const_cast<char *>(tcl.result()); /// UDP Sink Name=const_cast<char *>(name()); sprintf(tcl.buffer(), "%s set destnode_id", Name); tcl.eval(); assert(*tcl.result()); int destnode_id = atoi(tcl.result()); tcl.eval("set udp1 [new Agent/UDP]"); tcl.eval("$udp1 set class_ 2"); tcl.eval("set null [new Agent/Null]"); sprintf(tcl.buffer(), "Simulator attach-agent %s $null", Destination); tcl.eval(); rslt=const_cast<char *>(tcl.result()); // tcl.result(rslt); cout << "Destination set by FA : " << rslt <<"\n"; /// CBR App. tcl.eval("Simulator connect $udp1 $null"); tcl.eval("set cbr1 [new Application/Traffic/CBR]"); tcl.eval("$cbr1 attach-agent $udp1"); tcl.eval("$cbr1 set PacketSize_ 1000"); tcl.eval("$cbr1 set rate_ 0.01Mb"); tcl.eval("Simulator at-now \"$cbr1 start\" "); cout << " CBR Application Starts \n"; ************************************************************************ when I make my ns2 and run my tcl code, I see the line "CBR Application Starts " but the trace file is empty!!! I added a trace file to my .c code, too and flush-trace to it, but I still have an empty trace file!!!!!! please help me. I have so little time to solve my problem. with thanks: Fahimeh