NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.5: NDN, CCN, CCNx, content centric networks
API Documentation
prefix-announcement-header.cpp
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2013-2019 Regents of the University of California.
4  *
5  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
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7  * ndn-cxx library is free software: you can redistribute it and/or modify it under the
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21 
23 #include "ndn-cxx/lp/tlv.hpp"
24 
25 namespace ndn {
26 namespace lp {
27 
29 
31 {
32  wireDecode(block);
33 }
34 
36  : m_prefixAnn(std::move(prefixAnn))
37 {
38  if (m_prefixAnn->getData() == nullopt) {
39  NDN_THROW(Error("PrefixAnnouncement does not contain Data"));
40  }
41 }
42 
43 template<encoding::Tag TAG>
44 size_t
46 {
47  if (m_prefixAnn == nullopt) {
48  NDN_THROW(Error("PrefixAnnouncementHeader does not contain a PrefixAnnouncement"));
49  }
50 
51  size_t length = 0;
52  length += m_prefixAnn->getData()->wireEncode(encoder);
53  length += encoder.prependVarNumber(length);
54  length += encoder.prependVarNumber(tlv::PrefixAnnouncement);
55  return length;
56 }
57 
59 
60 void
62 {
63  if (wire.type() != tlv::PrefixAnnouncement) {
64  NDN_THROW(Error("PrefixAnnouncement", wire.type()));
65  }
66 
67  wire.parse();
68  m_prefixAnn.emplace(Data(wire.get(ndn::tlv::Data)));
69 }
70 } // namespace lp
71 } // namespace ndn
nonstd::optional_lite::std11::move
T & move(T &t)
Definition: optional.hpp:421
ndn::lp::NDN_CXX_DEFINE_WIRE_ENCODE_INSTANTIATIONS
NDN_CXX_DEFINE_WIRE_ENCODE_INSTANTIATIONS(CachePolicy)
ndn::lp::PrefixAnnouncementHeader::PrefixAnnouncementHeader
PrefixAnnouncementHeader()
ndn::PrefixAnnouncement
A prefix announcement object that represents an application's intent of registering a prefix toward i...
Definition: prefix-announcement.hpp:34
ndn::Block::get
const Block & get(uint32_t type) const
Return the first sub-element of the specified TLV-TYPE.
Definition: block.cpp:414
ndn::Block::type
uint32_t type() const
Return the TLV-TYPE of the Block.
Definition: block.hpp:274
NDN_THROW
#define NDN_THROW(e)
Definition: exception.hpp:61
tlv.hpp
ndn::lp::PrefixAnnouncementHeader::Error
Definition: prefix-announcement-header.hpp:36
nonstd::optional_lite::nullopt
const nullopt_t nullopt((nullopt_t::init()))
ndn::lp::PrefixAnnouncementHeader::wireDecode
void wireDecode(const Block &wire)
Definition: prefix-announcement-header.cpp:61
ndn::Block::parse
void parse() const
Parse TLV-VALUE into sub-elements.
Definition: block.cpp:325
ndn::tlv::Data
@ Data
Definition: tlv.hpp:66
ndn::encoding::EncodingImpl
Definition: encoding-buffer-fwd.hpp:36
ndn::Block
Represents a TLV element of NDN packet format.
Definition: block.hpp:43
prefix-announcement-header.hpp
ndn::lp
Definition: cache-policy.cpp:28
ndn::lp::PrefixAnnouncementHeader
represents a PrefixAnnouncement header field in NDNLP
Definition: prefix-announcement-header.hpp:33
ndn::lp::PrefixAnnouncementHeader::wireEncode
size_t wireEncode(EncodingImpl< TAG > &encoder) const
encodes the prefix announcement header to the wire format
Definition: prefix-announcement-header.cpp:45
ndn::lp::tlv::PrefixAnnouncement
@ PrefixAnnouncement
Definition: tlv.hpp:52
ndn
Copyright (c) 2011-2015 Regents of the University of California.
Definition: ndn-strategy-choice-helper.hpp:34