[ndnSIM] [EXT] Issue with writing custom nametree

[Swetha B]

Hi junxiao Shi,
I have problem with cloning NFD repository.
I followed your previous email

Dear folks

I got question on how to clone the NFD repository for development purpose.
Here's the updated procedure: (Thanks Teng Liang for reporting a problem in
the procedure sent on Mar 28)

   1. in a web browser, navigate to http://gerrit.named-data.net
   2. click "Sign In" link on top-right corner, click "Google OAuth2"
   3. authenticate with your Google Account, and then you will be
   redirected back to Gerrit system
   4. click your name on top-right corner, and click "Settings" in the
   pop-up box
   5. look for a "Username" textbox; if there's no such textbox, but a
   username is displayed, goto step 7
   6. in the "Username" textbox, type a username (syntax: a letter,
   followed by letters or numbers), and click "Select" button, confirm
   7. click "SSH Public Keys" menu item on left navigation bar
   8. look for multi-line textbox below "Add SSH Public Key"; if there's no
   such textbox, but a table is displayed, goto step 10
   9. paste your SSH public key, and click "Add" button
   10. click "Projects - List" menu item on top navigation bar
   11. type "NFD" in "Filter" textbox
   12. click "NFD" table row
   13. under "Project NFD" title, click "clone with commit-msg hook" and
   "SSH" buttons
   14. find the textbox below "clone with commit-msg hook" (it should start
   with "git clone ssh:/")
   15. the contents in this textbox is the complete command line needed to
   clone the NFD repository


But i didnt find "clone with commit-msg hook" and "SSH" buttons. In place
of that i found git clone "https://gerrit.named-data.net/NFD"..
Can u guide me how to proceed further.

Regards
Swetha

On Wed, Oct 7, 2020 at 4:41 PM Swetha B <swetab26 at gmail.com> wrote:

> Thanks a lot for your valuable inputs.
> Swetha B
>
> On Mon, Oct 5, 2020 at 9:42 AM Junxiao Shi <shijunxiao at email.arizona.edu>
> wrote:
>
>> Hi Swetha
>>
>> This means your changes are breaking the NameTree API needed by FIB.
>>
>> 1. Separately clone the NFD repository.
>> 2. Checkout the NFD version used in your version of ndnSIM.
>> 3. Apply your modifications there.
>> 4. Ensure all unit tests are passing. If not, find out what's wrong in
>> your changes.
>> 5. Now reapply the changes to ndnSIM, and the FIB will likely work.
>>
>> Yours, Junxiao
>>
>> On Mon, Oct 5, 2020 at 00:01 Swetha B via ndnSIM <
>> ndnsim at lists.cs.ucla.edu> wrote:
>>
>>> *External Email*
>>> Hi all,
>>> I am implementing NDN tables indexing using closed hashing with linear
>>> probing in ndnSIM2.7.
>>> To achieve that I modified name-tree-hashtable.cpp and
>>> name-tree-iterator.cpp.
>>> After modifications i am able to successfully run producer consumer
>>> applications.
>>> In my custom scenario i am accessing FIB table of a node to insert a
>>> prefix and later execute consumer producer applications using that prefix.
>>>
>>> auto& fib1 =
>>> node1->GetObject<ndn::L3Protocol>()->getForwarder()->getFib();
>>>   auto e = fib1.insert(prefix).first;
>>>   ndn::FibHelper::AddRoute(node1,prefix,node4,1);
>>>
>>> When i execute this scenario i see that visualizer is'nt working and
>>> also the regular setup FIB tables on nodes is'nt taking place. I have
>>> shared a snapshot of execution.
>>>
>>> swetha at swetha-Ubuntu:~/Desktop/ndnSIM/ndnSIM-sample-topologies$
>>> NS_LOG="ndn-cxx.nfd.NameTreeHashtable:ndn.FibHelper:ndn.L3Protocol" ./waf
>>> --run=ndn-simple --vis
>>> Waf: Entering directory
>>> `/home/swetha/Desktop/ndnSIM/ndnSIM-sample-topologies/build'
>>> [23/34] cxx: scenarios/ndn-simple.cc ->
>>> build/scenarios/ndn-simple.cc.12.o
>>> [34/34] cxxprogram: build/scenarios/ndn-simple.cc.12.o ->
>>> build/ndn-simple
>>> Waf: Leaving directory
>>> `/home/swetha/Desktop/ndnSIM/ndnSIM-sample-topologies/build'
>>> 'build' finished successfully (6.937s)
>>> +0.000000000s 0 ndn.L3Protocol:L3Protocol(0x555bd319c4e0)
>>> +0.000000000s 0 ndn-cxx.nfd.NameTreeHashtable:computeThresholds():
>>> [LOGIC] thresholds expand=512 shrink=102
>>> +0.000000000s 0 ndn-cxx.nfd.NameTreeHashtable:findOrInsert(): [LOGIC]
>>> insert / hash=0 bucket=0
>>> +0.000000000s 0 ndn-cxx.nfd.NameTreeHashtable:findOrInsert(): [LOGIC]
>>> insert /ndn hash=6181921638449679482 bucket=122
>>> +0.000000000s 0 ndn-cxx.nfd.NameTreeHashtable:findOrInsert(): [LOGIC]
>>> insert /ndn/multicast hash=18240561258910134669 bucket=397
>>> +0.000000000s 0 ndn-cxx.nfd.NameTreeHashtable:findOrInsert(): [LOGIC]
>>> insert /localhost hash=10937169108514740553 bucket=329
>>> +0.000000000s 0 ndn-cxx.nfd.NameTreeHashtable:findOrInsert(): [LOGIC]
>>> insert /localhost/nfd hash=3626199823732152002 bucket=706
>>>
>>> swetha at swetha-Ubuntu:~/Desktop/ndnSIM/ndnSIM-sample-topologies$
>>>
>>>
>>>
>>>   I m grateful for any thoughts and advice regarding where i am going
>>> wrong in this.
>>> Thanks.
>>>
>>> Swetha B.
>>> Research Scholar
>>> RNSIT
>>> Bengaluru
>>> India
>>>
>>>
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