c_cpp 如何在使用OMNeT ++框架构建的NB-IoT模拟器中检测数据包的示例。

Posted 2021-05-14

    auto aTempPacket = pkt->dup();
    if (dynamic_cast<RlcPacket *>(aTempPacket) != nullptr) {
      auto aRlcPacket = omnetpp::check_and_cast<RlcPacket *>(aTempPacket);
      if (aRlcPacket->hasEncapsulatedPacket()) {
        auto aPdcpPacket = aRlcPacket->decapsulate();
        delete aRlcPacket;
        auto aTempPacket_2 = aPdcpPacket->decapsulate();
        delete aPdcpPacket;
        if (dynamic_cast<RrcPacket *>(aTempPacket_2) != nullptr) {
          auto aRrcPacket = omnetpp::check_and_cast<RrcPacket *>(aTempPacket_2);
          EV_TRACE << "PHY: Received RRC packet \"" << aRrcPacket->getName() << "\"." << std::endl;
          delete aRrcPacket;
        } else if (dynamic_cast<CoapPacket *>(aTempPacket_2) != nullptr) {
          auto aCoapPacket = omnetpp::check_and_cast<RrcPacket *>(aTempPacket_2);
          auto anAppPacket = aCoapPacket->decapsulate();
          delete aCoapPacket;
          EV_TRACE << "PHY: Received CoAP packet \"" << anAppPacket->getName() << "\"." << std::endl;
          delete anAppPacket;
        } else {
          EV_TRACE << "PHY: Unknown packet" << std::endl;
        }
      } else {
        EV_TRACE << "PHY: Received RLC packet \"" << aRlcPacket->getName() << "\"." << std::endl;
        delete aRlcPacket;
      }
    } else {
      EV_TRACE << "PHY: Unknown packet" << std::endl;
      delete aTempPacket;
    }