text: // Copyright (c) 2019 by Robert Bosch GmbH. All rights reserved.
  // Copyright (c) 2021 by Apex.AI Inc. All rights reserved.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  //
  // SPDX-License-Identifier: Apache-2.0
  
  #include "iceoryx_posh/internal/popo/ports/interface_port.hpp"
  #include "iceoryx_hoofs/error_handling/error_handling.hpp"
  
  namespace iox
  {
  namespace popo
  {
  InterfacePort::InterfacePort(InterfacePortData* const interfacePortDataPtr) noexcept
      : BasePort(interfacePortDataPtr)
  {
  }
  
  cxx::optional<capro::CaproMessage> InterfacePort::tryGetCaProMessage() noexcept
  {
      return getMembers()->m_caproMessageFiFo.pop();
  }
  
  void InterfacePort::dispatchCaProMessage(const capro::CaproMessage& caProMessage) noexcept
  {
      auto messageInterface = caProMessage.m_serviceDescription.getSourceInterface();
      auto myInterface = getMembers()->m_serviceDescription.getSourceInterface();
  
      // Do only forward messages for internal ports or if the ports interface is different
      // than the messageInterface otherwise it is possible that a gateway subscribes to its
      // own services. This would lead to running messages in cycles.
      if (myInterface != iox::capro::Interfaces::INTERNAL && myInterface == messageInterface)
      {
          return;
      }
  
      if (!getMembers()->m_caproMessageFiFo.push(caProMessage))
      {
          // information loss for this interface port
          errorHandler(Error::kPOSH__INTERFACEPORT_CAPRO_MESSAGE_DISMISSED, nullptr, ErrorLevel::SEVERE);
      }
  }
  
  const InterfacePortData* InterfacePort::getMembers() const noexcept
  {
      return reinterpret_cast<const InterfacePortData*>(BasePort::getMembers());
  }
  
  InterfacePortData* InterfacePort::getMembers() noexcept
  {
      return reinterpret_cast<InterfacePortData*>(BasePort::getMembers());
  }
  
  
  } // namespace popo
  } // namespace iox
  