src: Recreating face in case of face deletion by NFD
Change-Id: Idd1d0b7f521e574ace38d6f671a682622d98209d
diff --git a/src/face-monitor.cpp b/src/face-monitor.cpp
new file mode 100644
index 0000000..7685471
--- /dev/null
+++ b/src/face-monitor.cpp
@@ -0,0 +1,83 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014 University of Memphis,
+ * Regents of the University of California
+ *
+ * This file is part of NLSR (Named-data Link State Routing).
+ * See AUTHORS.md for complete list of NLSR authors and contributors.
+ *
+ * NLSR 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.
+ *
+ * NLSR 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
+ * NLSR, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * \author A K M Mahmudul Hoque <ahoque1@memphis.edu>
+ *
+ **/
+#include "face-monitor.hpp"
+#include "logger.hpp"
+
+
+namespace nlsr {
+
+INIT_LOGGER("FaceMonitor");
+
+void
+FaceMonitor::startNotification()
+{
+ ndn::Interest interest("/localhost/nfd/faces/events");
+ interest
+ .setMustBeFresh(true)
+ .setChildSelector(1)
+ .setInterestLifetime(ndn::time::seconds(60));
+
+ _LOG_DEBUG("FaceMonitor::startNotification sending interest: " << interest);
+
+ m_face.expressInterest(interest,
+ ndn::bind(&nlsr::FaceMonitor::onData, this, _2),
+ ndn::bind(&nlsr::FaceMonitor::onTimeout, this));
+}
+
+void
+FaceMonitor::onTimeout()
+{
+ ndn::Interest interest("/localhost/nfd/faces/events");
+ interest
+ .setMustBeFresh(true)
+ .setChildSelector(1)
+ .setInterestLifetime(ndn::time::seconds(60));
+
+ _LOG_DEBUG("FaceMonitor::onTimeout sending interest: " << interest);
+
+ m_face.expressInterest(interest,
+ ndn::bind(&nlsr::FaceMonitor::onData, this, _2),
+ ndn::bind(&nlsr::FaceMonitor::onTimeout, this));
+}
+void
+FaceMonitor::onData(const ndn::Data& data)
+{
+ m_lastSequence = data.getName().get(-1).toSegment();
+ ndn::nfd::FaceEventNotification notification(data.getContent().blockFromValue());
+ m_notificationCallBack(notification);
+
+ ndn::Name nextNotification("/localhost/nfd/faces/events");
+ nextNotification.appendSegment(m_lastSequence + 1);
+
+ ndn::Interest interest(nextNotification);
+ interest.setInterestLifetime(ndn::time::seconds(60));
+
+ _LOG_DEBUG("FaceMonitor::onData Interest sent: " << interest);
+
+ m_face.expressInterest(interest,
+ ndn::bind(&nlsr::FaceMonitor::onData, this, _2),
+ ndn::bind(&nlsr::FaceMonitor::onTimeout, this));
+}
+
+
+} // namespace nlsr