util: Porting NotificationSubscriber, FaceMonitor, and NotificationStream from NFD
New generic classes:
- `util::NotificationSubscriber` (`util/notification-subscriber.hpp`)
- `util::NotificationStream` (`util/notification-stream.hpp`)
NFD Face monitoring class:
- `nfd::FaceMonitor` (`management/nfd-face-monitor.hpp`)
Change-Id: I2ab0a2cd9d7e3ac07036f290f0b4de5eb16e6e38
diff --git a/src/util/notification-stream.hpp b/src/util/notification-stream.hpp
new file mode 100644
index 0000000..991a885
--- /dev/null
+++ b/src/util/notification-stream.hpp
@@ -0,0 +1,112 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2014 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.
+ */
+
+/**
+ * Original copyright notice from NFD:
+ *
+ * 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 NDN_UTIL_NOTIFICATION_STREAM_HPP
+#define NDN_UTIL_NOTIFICATION_STREAM_HPP
+
+#include "../name.hpp"
+#include "../face.hpp"
+#include "../security/key-chain.hpp"
+
+#include "concepts.hpp"
+
+namespace ndn {
+
+class Face;
+class KeyChain;
+
+namespace util {
+
+/** \brief provides a publisher of Notification Stream
+ * \sa http://redmine.named-data.net/projects/nfd/wiki/Notification
+ */
+template<typename Notification>
+class NotificationStream : noncopyable
+{
+public:
+ BOOST_CONCEPT_ASSERT((WireEncodable<Notification>));
+
+ NotificationStream(Face& face, const Name& prefix, KeyChain& keyChain)
+ : m_face(face)
+ , m_prefix(prefix)
+ , m_keyChain(keyChain)
+ , m_sequenceNo(0)
+ {
+ }
+
+ virtual
+ ~NotificationStream()
+ {
+ }
+
+ void
+ postNotification(const Notification& notification)
+ {
+ Name dataName = m_prefix;
+ dataName.appendSequenceNumber(m_sequenceNo);
+
+ shared_ptr<Data> data = make_shared<Data>(dataName);
+ data->setContent(notification.wireEncode());
+ data->setFreshnessPeriod(time::seconds(1));
+
+ m_keyChain.sign(*data);
+ m_face.put(*data);
+
+ ++m_sequenceNo;
+ }
+
+private:
+ Face& m_face;
+ const Name m_prefix;
+ KeyChain& m_keyChain;
+ uint64_t m_sequenceNo;
+};
+
+} // namespace util
+} // namespace ndn
+
+#endif // NDN_UTIL_NOTIFICATION_STREAM_HPP