Hi,
I was trying to assign and use state variables inside a FullTcp agent like
is done using normal TCP agents. For ex, I create and use a session_number
state variable below:
set tcpagent [new Agent/TCP/FullTcp]
$tcpagent set session_number 0
When I overload the done{} method for the FullTcp agent, I am not able to
access any state variables which I created. ie, when I try
Agent/TCP/FullTcp instproc done { } {
puts [$self set session_number]
}
I get an error
----------------------------
ns: _o89 done: can't read "session_number": no such variable
while executing
"subst $[subst $var]"
(procedure "_o89" line 5)
(Object next line 5)
invoked from within
"_o89 next session_number"
("eval" body line 1)
invoked from within
"eval $self next $args"
(procedure "_o89" line 18)
(Agent set line 18)
invoked from within
"$agent set session_number"
(procedure "_o89" line 4)
(Agent/TCP/FullTcp done line 4)
invoked from within
"_o89 done"
------------------------------
The wierd thing is, if I create a done method specific to a particular
instance of the FullTcp agent, I am able to use the state variables and I
get no error. ie, the following works fine
set tcpagent [new Agent/TCP/FullTcp]
$tcpagent set session_number 0
$tcpagent proc done { } {
puts [$self set session_number]
}
I have been digging around the code for the past 3 days but have not found
why it behaves this way for the FullTcp agent alone (because it behaves just
fine for a normal TCP agent). And yes, I did search the archives to the best
of my knowledge and I couldn't find any information related to this.
Any help would be greatly appreciated!
Thanks,
Sid
