void printRoutingEntries()

in astra-sim-alibabacloud/astra-sim/network_frontend/ns3/common.h [341:416]
72 lines of code
16 McCabe index (conditional complexity)

void printRoutingEntries() {
  map<uint32_t, string> types;
  types[0] = "HOST";
  types[1] = "SWITCH";
  types[2] = "NVSWITCH";
  map<Ptr<Node>, map<Ptr<Node>, vector<pair<Ptr<Node>, uint32_t> >>> NVSwitch, NetSwitch, Host; 
  for (auto i = nextHop.begin(); i != nextHop.end(); i++) {
    Ptr<Node> src = i -> first;
    auto &table = i->second;
    for (auto j = table.begin(); j != table.end(); j++) { 
      Ptr<Node> dst = j->first;
      Ipv4Address dstAddr = dst->GetObject<Ipv4>()->GetAddress(1, 0).GetLocal();
      vector<Ptr<Node>> nexts = j->second;
      for (int k = 0; k < (int)nexts.size(); k++) {
        Ptr<Node> firstHop = nexts[k];
        uint32_t interface = nbr2if[src][firstHop].idx;
        if(src->GetNodeType() == 0) {
          Host[src][dst].push_back(pair<Ptr<Node>, uint32_t>(firstHop, interface));
        } else if(src->GetNodeType() == 1) {
          NetSwitch[src][dst].push_back(pair<Ptr<Node>, uint32_t>(firstHop, interface));
        } else if(src->GetNodeType() == 2) {
          NVSwitch[src][dst].push_back(pair<Ptr<Node>, uint32_t>(firstHop, interface));
        }
      }
    }
  }

  cout << "*********************    PRINT SWITCH ROUTING TABLE    *********************" << endl << endl << endl;
  for(auto it = NetSwitch.begin(); it != NetSwitch.end(); ++ it) {
    Ptr<Node> src = it -> first;
    auto table = it -> second;
    cout << "SWITCH: " << src->GetId() << "'s routing entries are as follows:" << endl;
    for(auto j = table.begin(); j != table.end(); ++ j) {
      Ptr<Node> dst = j -> first;
      auto entries = j -> second;
      for(auto k = entries.begin(); k != entries.end(); ++ k) {
        Ptr<Node> nextHop = k->first;
        uint32_t interface = k->second;
        cout << "To " << dst->GetId() << "[" << types[dst->GetNodeType()] << "] via " << nextHop->GetId() << "[" << types[nextHop->GetNodeType()] << "]" << " from port: " << interface << endl;
      }
    }
  } 

  cout << "*********************    PRINT NVSWITCH ROUTING TABLE    *********************" << endl  << endl << endl;
  for(auto it = NVSwitch.begin(); it != NVSwitch.end(); ++ it) {
    Ptr<Node> src = it -> first;
    auto table = it -> second;
    cout << "NVSWITCH: " << src->GetId() << "'s routing entries are as follows:" << endl;
    for(auto j = table.begin(); j != table.end(); ++ j) {
      Ptr<Node> dst = j -> first;
      auto entries = j -> second;
      for(auto k = entries.begin(); k != entries.end(); ++ k) {
        Ptr<Node> nextHop = k->first;
        uint32_t interface = k->second;
        cout << "To " << dst->GetId() << "[" << types[dst->GetNodeType()] << "] via " << nextHop->GetId() << "[" << types[nextHop->GetNodeType()] << "]" << " from port: " << interface << endl;
      }
    }
  } 

  cout << "*********************    HOST ROUTING TABLE    *********************" << endl << endl << endl;
  for(auto it = Host.begin(); it != Host.end(); ++ it) {
    Ptr<Node> src = it -> first;
    auto table = it -> second;
    cout << "HOST: " << src->GetId() << "'s routing entries are as follows:" << endl;
    for(auto j = table.begin(); j != table.end(); ++ j) {
      Ptr<Node> dst = j -> first;
      auto entries = j -> second;
      for(auto k = entries.begin(); k != entries.end(); ++ k) {
        Ptr<Node> nextHop = k->first;
        uint32_t interface = k->second;
        cout << "To " << dst->GetId() << "[" << types[dst->GetNodeType()] << "] via " << nextHop->GetId() << "[" << types[nextHop->GetNodeType()] << "]" << " from port: " << interface << endl;
      }
    }
  } 

}