| /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| /** |
| * Copyright (c) 2014 Regents of the University of California, |
| * Arizona Board of Regents, |
| * Colorado State University, |
| * University Pierre & Marie Curie, Sorbonne University, |
| * Washington University in St. Louis, |
| * Beijing Institute of Technology, |
| * The University of Memphis |
| * |
| * This file is part of NFD (Named Data Networking Forwarding Daemon). |
| * See AUTHORS.md for complete list of NFD authors and contributors. |
| * |
| * NFD is free software: you can redistribute it and/or modify it under the terms |
| * of the GNU General Public License as published by the Free Software Foundation, |
| * either version 3 of the License, or (at your option) any later version. |
| * |
| * NFD 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>. |
| **/ |
| |
| #ifndef NFD_CORE_FACE_MONITOR_HPP |
| #define NFD_CORE_FACE_MONITOR_HPP |
| |
| #include "common.hpp" |
| |
| #include <ndn-cxx/management/nfd-face-event-notification.hpp> |
| |
| namespace ndn { |
| class Face; |
| class PendingInterestId; |
| } |
| |
| namespace nfd { |
| |
| using ndn::nfd::FaceEventNotification; |
| |
| /** |
| * \brief Helper class to subscribe to face notification events |
| * |
| * \todo Write test cases |
| */ |
| class FaceMonitor : noncopyable |
| { |
| public: |
| typedef function<void(const ndn::nfd::FaceEventNotification&)> NotificationCallback; |
| typedef function<void()> TimeoutCallback; |
| |
| typedef std::vector<NotificationCallback> NotificationCallbacks; |
| typedef std::vector<TimeoutCallback> TimeoutCallbacks; |
| |
| explicit |
| FaceMonitor(ndn::Face& face); |
| |
| ~FaceMonitor(); |
| |
| /** \brief Stops all notifications. This method doesn't remove registered callbacks. |
| */ |
| void |
| stopNotifications(); |
| |
| /** \brief Resumes notifications for added subscribers. |
| */ |
| void |
| startNotifications(); |
| |
| /** \brief Removes all notification subscribers. |
| */ |
| void |
| removeAllSubscribers(); |
| |
| /** \brief Adds a notification subscriber. This method doesn't return on timeouts. |
| */ |
| void |
| addSubscriber(const NotificationCallback& notificationCallback); |
| |
| /** \brief Adds a notification subscriber. |
| */ |
| void |
| addSubscriber(const NotificationCallback& notificationCallback, |
| const TimeoutCallback& timeoutCallback); |
| |
| private: |
| void |
| onTimeout(); |
| |
| void |
| onNotification(const Data& data); |
| |
| private: |
| ndn::Face& m_face; |
| uint64_t m_lastSequence; |
| bool m_isStopped; |
| NotificationCallbacks m_notificationCallbacks; |
| TimeoutCallbacks m_timeoutCallbacks; |
| const ndn::PendingInterestId* m_lastInterestId; |
| }; |
| |
| } // namespace nfd |
| |
| #endif // NFD_CORE_FACE_MONITOR_HPP |