[ndnSIM] Data has no wire encoding (not signed)

[Junxiao Shi]

Hi cjb

NFD ContentStore expects Data::getFullName() to return a valid name with
implicit digest. If your changes cannot maintain this property, it will
have undefined behavior (such as crashing).
Look at the logic in Data::getFullName() and see what went wrong.

Yours, Junxiao

On Thu, Dec 14, 2017 at 04:44 <cjb0725 at mail.ustc.edu.cn> wrote:

> Greetings all,
>
>   I add two new fields into Data and modified the encode and decode function, tlv.hpp as well. if I use the old ContentStore
>
>    ndnHelper.SetOldContentStore("ns3::ndn::cs::Lru","MaxSize","100");
>
> it works well.But if I use the nfd::Cs
>
>    ndnHelper.setCsSize(100);
>    ndnHelper.setPolicy("nfd::cs::lru");
>
> I got this error:
>
> libc++abi.dylib: terminating with uncaught exception of type boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<ndn::Data::Error> >: Cannot compute full name because Data has no wire encoding (not signed).
>
> And I have another question, we can use ndn::CsTracer to obtain metrics about hits/misses, but this only works with the old ContentStore , how to obtain these metrics when I use nfd::Cs?
>
> any help would be great.
>
> Thanks in advance!
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