Adding nsync for NLSR
diff --git a/nsync/src/sync-socket.h b/nsync/src/sync-socket.h
new file mode 100644
index 0000000..e4eec37
--- /dev/null
+++ b/nsync/src/sync-socket.h
@@ -0,0 +1,128 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2012 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Yingdi Yu <yingdi@cs.ucla.edu>
+ */
+
+#ifndef _SYNC_SOCKET_H
+#define _SYNC_SOCKET_H
+
+#include <ndn-cpp-dev/face.hpp>
+#include <ndn-cpp-dev/security/validator.hpp>
+#include <ndn-cpp-dev/security/key-chain.hpp>
+
+#include "sync-logic.h"
+#include "sync-seq-no.h"
+
+#include <utility>
+#include <map>
+#include <vector>
+#include <sstream>
+
+namespace Sync {
+
+/**
+ * \ingroup sync
+ * @brief A simple interface to interact with client code
+ */
+class SyncSocket
+{
+public:
+ typedef ndn::function< void (const std::vector<MissingDataInfo> &, SyncSocket * ) > NewDataCallback;
+ typedef ndn::function< void (const std::string &/*prefix*/ ) > RemoveCallback;
+
+ /**
+ * @brief the constructor for SyncAppSocket; the parameter syncPrefix
+ * should be passed to the constructor of m_syncAppWrapper; the other
+ * parameter should be passed to the constructor of m_fetcher; furthermore,
+ * the fetch function of m_fetcher should be a second paramter passed to
+ * the constructor of m_syncAppWrapper, so that m_syncAppWrapper can tell
+ * m_fetcher to fetch the actual app data after it learns the names
+ *
+ * @param syncPrefix the name prefix for Sync Interest
+ * @param dataCallback the callback to process data
+ */
+ SyncSocket (const ndn::Name &syncPrefix,
+ ndn::shared_ptr<ndn::Validator> validator,
+ ndn::shared_ptr<ndn::Face> face,
+ NewDataCallback dataCallback,
+ RemoveCallback rmCallback);
+
+ ~SyncSocket ();
+
+ bool
+ publishData(const ndn::Name &prefix, uint64_t session, const char *buf, size_t len, int freshness,uint64_t seq);
+
+ void
+ remove (const ndn::Name &prefix)
+ { m_syncLogic.remove(prefix); }
+
+ void
+ fetchData(const ndn::Name &prefix, const SeqNo &seq, const ndn::OnDataValidated& onValidated, int retry = 0);
+
+ std::string
+ getRootDigest()
+ { return m_syncLogic.getRootDigest(); }
+
+ uint64_t
+ getNextSeq (const ndn::Name &prefix, uint64_t session);
+
+ SyncLogic &
+ getLogic ()
+ { return m_syncLogic; }
+
+ // make this a static function so we don't have to create socket instance without
+ // knowing the local prefix. it's a wrong place for this function anyway
+ static std::string
+ GetLocalPrefix ();
+
+private:
+ void
+ publishDataInternal(ndn::shared_ptr<ndn::Data> data, const ndn::Name &prefix, uint64_t session,uint64_t seq);
+
+ void
+ passCallback(const std::vector<MissingDataInfo> &v)
+ { m_newDataCallback(v, this); }
+
+ void
+ onData(const ndn::Interest& interest, ndn::Data& data,
+ const ndn::OnDataValidated& onValidated,
+ const ndn::OnDataValidationFailed& onValidationFailed);
+
+ void
+ onDataTimeout(const ndn::Interest& interest,
+ int retry,
+ const ndn::OnDataValidated& onValidated,
+ const ndn::OnDataValidationFailed& onValidationFailed);
+
+ void
+ onDataValidationFailed(const ndn::shared_ptr<const ndn::Data>& data);
+
+private:
+ typedef std::map<ndn::Name, SeqNo> SequenceLog;
+ NewDataCallback m_newDataCallback;
+ SequenceLog m_sequenceLog;
+ ndn::shared_ptr<ndn::Validator> m_validator;
+ ndn::shared_ptr<ndn::KeyChain> m_keyChain;
+ ndn::shared_ptr<ndn::Face> m_face;
+ ndn::shared_ptr<boost::asio::io_service> m_ioService;
+ SyncLogic m_syncLogic;
+};
+
+} // Sync
+
+#endif // SYNC_SOCKET_H