blob: 89c9251d65e7b57ef66c734fd661bea632fd3c02 [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2011-2014 Regents of the University of California.
*
* This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
* contributors.
*
* ndnSIM is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Foundation,
* either version 3 of the License, or (at your option) any later version.
*
* ndnSIM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* ndnSIM, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
**/
#include "ndn-header.hpp"
#include <iosfwd>
#include <boost/iostreams/concepts.hpp>
#include <boost/iostreams/stream.hpp>
namespace io = boost::iostreams;
namespace ns3 {
namespace ndn {
template<>
ns3::TypeId
PacketHeader<Interest>::GetTypeId()
{
static ns3::TypeId tid =
ns3::TypeId("ns3::ndn::Interest")
.SetGroupName("Ndn")
.SetParent<Header>()
.AddConstructor<PacketHeader<Interest>>()
;
return tid;
}
template<>
ns3::TypeId
PacketHeader<Data>::GetTypeId()
{
static ns3::TypeId tid =
ns3::TypeId("ns3::ndn::Data")
.SetGroupName("Ndn")
.SetParent<Header>()
.AddConstructor<PacketHeader<Data>>()
;
return tid;
}
template<class Pkt>
TypeId
PacketHeader<Pkt>::GetInstanceTypeId(void) const
{
return GetTypeId();
}
template<class Pkt>
PacketHeader<Pkt>::PacketHeader()
{
}
template<class Pkt>
PacketHeader<Pkt>::PacketHeader(const Pkt& packet)
: m_packet(packet.shared_from_this())
{
}
template<class Pkt>
uint32_t
PacketHeader<Pkt>::GetSerializedSize(void) const
{
return m_packet->wireEncode().size();
}
template<class Pkt>
void
PacketHeader<Pkt>::Serialize(Buffer::Iterator start) const
{
start.Write(m_packet->wireEncode().wire(), m_packet->wireEncode().size());
}
class Ns3BufferIteratorSource : public io::source {
public:
Ns3BufferIteratorSource(Buffer::Iterator& is)
: m_is(is)
{
}
std::streamsize
read(char* buf, std::streamsize nMaxRead)
{
std::streamsize i = 0;
for (; i < nMaxRead && !m_is.IsEnd(); ++i) {
buf[i] = m_is.ReadU8();
}
if (i == 0) {
return -1;
}
else {
return i;
}
}
private:
Buffer::Iterator& m_is;
};
template<class Pkt>
uint32_t
PacketHeader<Pkt>::Deserialize(Buffer::Iterator start)
{
auto packet = make_shared<Pkt>();
io::stream<Ns3BufferIteratorSource> is(start);
packet->wireDecode(::ndn::Block::fromStream(is));
m_packet = packet;
return packet->wireEncode().size();
}
template<>
void
PacketHeader<Interest>::Print(std::ostream& os) const
{
os << "I: " << *m_packet;
}
template<>
void
PacketHeader<Data>::Print(std::ostream& os) const
{
os << "D: " << *m_packet;
}
template<class Pkt>
shared_ptr<const Pkt>
PacketHeader<Pkt>::getPacket()
{
return m_packet;
}
typedef PacketHeader<Interest> InterestHeader;
typedef PacketHeader<Data> DataHeader;
NS_OBJECT_ENSURE_REGISTERED(InterestHeader);
NS_OBJECT_ENSURE_REGISTERED(DataHeader);
template class PacketHeader<Interest>;
template class PacketHeader<Data>;
} // namespace ndn
} // namespace ns3