Hello everybody,
I implemented a new agent Clustering in application layer. I put my .cc,
.h, and .tcl files in my own directory ("mohsen") under the ns directory.
Then I added the new packet type in 'packet.h' under packet_t{} and p_info
{}. Also I did necessary changes in ns-default.tcl, ns-packet.tcl, and
Makefile. Then I did 'make clean', 'make depend', and 'make'. Everything
was fine. In my tcl script when I make an object of my new agent and I try
to attach it to a node, NS returns the following Error.
*Here is a piece of my tcl script:*
-------------------------------------------------------------------
#Create a node
set n0 [$ns node]
set c0 [new Agent/Clustering]
$ns attach-agent $n0 $c0
-------------------------------------------------------------------
*NS returns the following errors:*
-------------------------------------------------------------------
can't read "debug_": no such variable
(Object set line 1)
invoked from within
"Classifier/Port set debug_"
invoked from within
"catch "$c set $var" val"
invoked from within
"if [catch "$self cmd $args" ret] {
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error "error when calling class $cls: $args" $..."
(procedure "_o59" line 2)
(SplitObject unknown line 2)
invoked from within
"$agent target [[$self node] entry]"
(procedure "_o11" line 2)
(RtModule attach line 2)
invoked from within
"$m attach $agent $port"
(procedure "_o10" line 4)
(Node add-target line 4)
invoked from within
"$self add-target $agent $port"
(procedure "_o10" line 15)
(Node attach line 15)
invoked from within
"$node attach $agent"
(procedure "_o3" line 2)
(Simulator attach-agent line 2)
invoked from within
"$ns attach-agent $n0 $p0"
(file "clustering.tcl" line 29)
root@qq-desktop:~/ns-allinone-2.30/ns-2.30/mohsen#
-------------------------------------------------------------------
Even I can reach the data members (variables) of my newly defined agent.
When I add the code
"$ns attach-agent $n0 $c0"
NS returns the above mentioned error.
Does anybody know the cause of this error? Is this because of something I
didn't do or something I did wrong? I am very puzzled by this problem. Any
help would be very much appreciated.
Thanks in advance,
Mohsen Sasani
Information Technoology, Computer Networks Engineering
Shiraz University of Technology
[email protected]
