How to add new queue type

[Antoine Nom]

Hello,

I am trying to add some new queue types in ns-2.29 but it doesn't work, so I tried some easier things like following this tutorial : http://nile.wpi.edu/NS/new_queue.html

But when I try to run the tcl file, I get this error :

invalid command name "Queue/DTRR"
    while executing
"Queue/DTRR create _o68 "
    invoked from within
"catch "$className create $o $args" msg"
    invoked from within
"if [catch "$className create $o $args" msg] {
if [string match "__FAILED_SHADOW_OBJECT_" $msg] {
delete $o
return ""
}
global errorInfo
error "class $..."
    (procedure "new" line 3)
    invoked from within
"new Queue/$qtype"
    ("default" arm line 3)
    invoked from within
"switch -exact $qtype {
ErrorModule {
if { [llength $args] > 0 } {
set q [eval new $qtype $args]
} else {
set q [new $qtype Fid]
}
}
intserv {
set qtyp..."
    (procedure "_o3" line 14)
    (Simulator simplex-link line 14)
    invoked from within
"_o3 simplex-link _o16 _o19 2Mb 10ms DTRR"
    ("eval" body line 1)
    invoked from within
"eval $self simplex-link $n1 $n2 $bw $delay $type $args"
    (procedure "_o3" line 8)
    (Simulator duplex-link line 8)
    invoked from within
"$ns duplex-link $node_(r1) $node_(r2) 2Mb 10ms DTRR"
    (file "ex-dtrr-queue.tcl" line 48)

I added the two files "dtrr-queue.h" and "dtrr-queue.cc" to my queue folder and added the following line : "queue/dtrr-queue.o \" in the makefile before doing a "make" without errors. So I don't know what I missed?

Thank you for helping me.

[knudfl]

»» invalid command name "Queue/DTRR" «« :  You are using a wrong copy of the executable 'ns'.

Please always use a new name when creating a new 'ns',  e.g.  ns229-dtrr.

And use it at simulation time :         $ ns229-dtrr ex-dtrr-queue.tcl

! However, if you read "ex-dtrr-queue.tcl" it can be discovered that a "new Agent" is also required.

Line 65, ex-dtrr-queue.tcl              set udp_s [new Agent/UDP/UDPmm]

.... See  http://nile.wpi.edu/NS/new_app_agent.html

.... which is the Chapter before  http://nile.wpi.edu/NS/new_queue.html

My test :

cd ns-allinone-2.29/
patch -p0 > mmApp-DTRR_ns229.patch
export  CC=gcc34 CXX=g++34 && ./install
cd ns-2.29/
cp ns ns229-mmApp-DTRR
sudo cp ns229-mmApp-DTRR /usr/local/bin/

-------- Simulation ---------------
ns229-mmApp-DTRR ex-dtrr-queue.tcl
ns229-mmApp-DTRR ex-mm-app.tcl

[knudfl]

Sorry, wrong patch.

The new patch with all code is attached ...

On Sunday, June 3, 2018 at 9:21:10 AM UTC+2, Antoine Nom wrote:

[Antoine Nom]

Hey! 

Thank you it actually worked, the thing I was missing from the beginning is the fact that we need to create a new ns after every new change in the makefile. Now I understand better. 

Another question : I am working on wireless adhoc networks and I was wondering if you had some Round Robin queue that worked well since the DTRR made no change on my wireless simulation compare to the Droptail/PriQueue (which I believe is FIFO).

Thanks again, one more time you helped me a lot.

[knudfl]

@Antoine Nom,  Hi.

queue-ns2 :  $ git clone https://github.com/vsubhashini/queue-ns2.git

DRR (Deficit Round Robin), see  queue-ns2/README, and TextFile2017-links.txt

The other item I have in my "ns Queue" folder is `size-aware´

http://www.cs.bu.edu/groups/itm/SATS/

I also have "QLBP/" → all items are in ``Queue-ns2.tar´´

https://drive.google.com/file/d/1oq1Ywn7brHeeGT0k6cFQRVwqczYm8ms2/view?usp=sharing

[eva lu]

<<Please always use a new name when creating a new 'ns',  e.g.  ns229-dtrr.<<

I met the same problem,could you tell me how to use a new name when creating a new 'ns'.

thank you very much.

在 2018年6月3日星期日 UTC+8下午6:57:51，knudfl写道：

[knudfl]

@eva lu ,   Hi.

Executable´s "ns-new.name" are required when you have multiple 'ns'.

Example :

cd ns-2.35/
cp ns ns-orig
sudo cp ns-orig /usr/local/bin/
           // and when you do changes, example "LTE"
cp ns ns235-lte
sudo cp ns235-lte /usr/local/bin/

------------- Simulation -------------
$ ns-orig [a-default-simulation].tcl
$ ns235-lte lte.tcl

• My example  usr.local.bin-04May19.txt  is attached ...
• Please read ns2-INFO  :  Also attached ...
  

On Wednesday, July 3, 2019 at 12:16:12 PM UTC+2, eva lu wrote:

<<Please always use a new name when creating a new 'ns',  e.g.  ns229-dtrr.<

could you tell me how to use a new name when creating a new 'ns'

[eva lu]

Hi,thank you for helping me!

I added the two files "dtrr-queue.h" and "dtrr-queue.cc" to my queue folder and added the following line : "queue/dtrr-queue.o \" in the makefile ,and than did the following steps:

cd ns-2.35/

make clean

make
cp ns ns-dtrr
sudo cp ns-dtrr /usr/local/bin/

------------- Simulation -------------
$ ns-dtrr test-dtrr.tcl

but I got this error :

    (_o68 cmd line 1)

    invoked from within

"_o68 cmd link _o72"

    invoked from within

"catch "$self cmd $args" ret"

    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 "_o68" line 2)

    (SplitObject unknown line 2)

    invoked from within

"$q link [$link_($sid:$did) set link_]"

    (procedure "_o3" line 73)

    (Simulator simplex-link line 73)

    invoked from within

"_o3 simplex-link _o16 _o19 2Mb 10ms DTRR"

    ("eval" body line 1)

    invoked from within

"eval $self simplex-link $n1 $n2 $bw $delay $type $args"

    (procedure "_o3" line 8)

    (Simulator duplex-link line 8)

    invoked from within

"$ns duplex-link $node_(r1) $node_(r2) 2Mb 10ms DTRR"

    (file "ex.tcl" line 48)

Do you know where is wrong? Thank you very much.

在 2019年7月3日星期三 UTC+8下午6:41:10，knudfl写道：

[knudfl]

@eva lu  ,   Hi.

My test ...

$ ns229-mmApp-DTRR-64 ex-dtrr-queue.tcl

... The files out.nam 3.7MB, out.tr 1.5MB are created.
And a NAM window opens.

• The example  ex-dtrr-queue.tcl  is attached.

[knudfl]

@eva lu  ,   Hi.

Sorry, the above example has some "mmApp, UDPmm" included.

A "dtrr only"  example works OK with ...

ns235-dtrr-64 dtrr-queue.tcl

Files :  out.nam 3.5MB, out.tr 1.4MB

[eva lu]

hello, knudfl :

   you helped me a lot,thank you. I have solved this problem.

在 2019年7月3日星期三 UTC+8下午10:34:42，knudfl写道：