| /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| /* |
| * Copyright (c) 2013-2017 Regents of the University of California. |
| * |
| * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions). |
| * |
| * ndn-cxx library is free software: you can redistribute it and/or modify it under the |
| * terms of the GNU Lesser General Public License as published by the Free Software |
| * Foundation, either version 3 of the License, or (at your option) any later version. |
| * |
| * ndn-cxx library 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 Lesser General Public License for more details. |
| * |
| * You should have received copies of the GNU General Public License and GNU Lesser |
| * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see |
| * <http://www.gnu.org/licenses/>. |
| * |
| * See AUTHORS.md for complete list of ndn-cxx authors and contributors. |
| */ |
| |
| #ifndef NDN_DETAIL_INTEREST_FILTER_RECORD_HPP |
| #define NDN_DETAIL_INTEREST_FILTER_RECORD_HPP |
| |
| #include "pending-interest.hpp" |
| |
| namespace ndn { |
| |
| /** |
| * @brief associates an InterestFilter with Interest callback |
| */ |
| class InterestFilterRecord : noncopyable |
| { |
| public: |
| /** |
| * @brief Construct an Interest filter record |
| * |
| * @param filter an InterestFilter that represents what Interest should invoke the callback |
| * @param interestCallback invoked when matching Interest is received |
| */ |
| InterestFilterRecord(const InterestFilter& filter, |
| const InterestCallback& interestCallback) |
| : m_filter(filter) |
| , m_interestCallback(interestCallback) |
| { |
| } |
| |
| /** |
| * @return the filter |
| */ |
| const InterestFilter& |
| getFilter() const |
| { |
| return m_filter; |
| } |
| |
| /** |
| * @brief Check if Interest name matches the filter |
| * @param name Interest Name |
| */ |
| bool |
| doesMatch(const PendingInterest& entry) const |
| { |
| return (entry.getOrigin() == PendingInterestOrigin::FORWARDER || m_filter.allowsLoopback()) && |
| m_filter.doesMatch(entry.getInterest()->getName()); |
| } |
| |
| /** |
| * @brief invokes the InterestCallback |
| * @note This method does nothing if the Interest callback is empty |
| */ |
| void |
| invokeInterestCallback(const Interest& interest) const |
| { |
| if (m_interestCallback != nullptr) { |
| m_interestCallback(m_filter, interest); |
| } |
| } |
| |
| private: |
| InterestFilter m_filter; |
| InterestCallback m_interestCallback; |
| }; |
| |
| /** |
| * @brief Opaque type to identify an InterestFilterRecord |
| */ |
| class InterestFilterId; |
| |
| /** |
| * @brief Functor to match InterestFilterId |
| */ |
| class MatchInterestFilterId |
| { |
| public: |
| explicit |
| MatchInterestFilterId(const InterestFilterId* interestFilterId) |
| : m_id(interestFilterId) |
| { |
| } |
| |
| bool |
| operator()(const shared_ptr<InterestFilterRecord>& interestFilterId) const |
| { |
| return reinterpret_cast<const InterestFilterId*>(interestFilterId.get()) == m_id; |
| } |
| |
| private: |
| const InterestFilterId* m_id; |
| }; |
| |
| } // namespace ndn |
| |
| #endif // NDN_DETAIL_INTEREST_FILTER_RECORD_HPP |