[ndnSIM] Adding new field to Interest packet

[Spyridon (Spyros) Mastorakis]

Hi,

have you modified the wireEncode and wireDecode methods to encode/decode the field to/from wire format?

Thanks,

Spyridon (Spyros) Mastorakis
Personal Website: http://cs.ucla.edu/~mastorakis/ <http://cs.ucla.edu/~mastorakis/>
Internet Research Laboratory
Computer Science Department
UCLA

> On Oct 15, 2017, at 4:28 PM, Mateus Sousa <mateus.aluufc at gmail.com> wrote:
> 
> Hi all,
> 
> I added a new field to Interest packet by following the discussions: http://www.lists.cs.ucla.edu/pipermail/ndnsim/2015-July/002044.html <http://www.lists.cs.ucla.edu/pipermail/ndnsim/2015-July/002044.html> and http://www.lists.cs.ucla.edu/pipermail/ndnsim/2017-March/003481.html <http://www.lists.cs.ucla.edu/pipermail/ndnsim/2017-March/003481.html>.
> 
> I created the field "NextForwarder" to point what node is the next forwarder to the interest. This field should be updated at every node (here is the problem). 
> 
> However, the alterations aren't persistent. The field value turns into "0" no matter what value I set.
> 
> Here goes my modifications:
> 
>     src/Interest.cpp: 
>                 
>     Interest&
>     Interest::setNextForwarder(uint32_t next) {
>            if (m_wire.hasWire() && m_nextForwarder.value_size() == sizeof(uint32_t)) {
>             std::memcpy(const_cast<uint8_t*>(m_nextForwarder.value()), &next, sizeof(next));
>   }
>   else {
>     m_nextForwarder = makeBinaryBlock(tlv::NextForwarder,
>                               reinterpret_cast<const uint8_t*>(&next),
>                               sizeof(next));
>     m_wire.reset();
>   }
>   return *this;
> }
> 
> uint32_t
> Interest::getNextForwarder() const{
>   if (!m_nextForwarder.hasWire())
>     const_cast<Interest*>(this)->setNextForwarder(9999);
> 
>   if (m_nextForwarder.value_size() == sizeof(uint32_t))
>     return *reinterpret_cast<const uint32_t*>(m_nextForwarder.value());
>   else {
>     return readNonNegativeInteger(m_nextForwarder);
>   }
> }
> 
> 
>     encoding/tlv.h
>           NextForwarder = 33, // X- Mateus
> 
> 
> Thanks in advance.
> 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.lists.cs.ucla.edu/pipermail/ndnsim/attachments/20171015/ff055fb4/attachment-0001.html>