Implemented set to monitor pending interests in manager.

Change-Id: I4a11db79053e69a19ceba0e0501b93911131d1d7
diff --git a/src/sequential-data-fetcher.hpp b/src/sequential-data-fetcher.hpp
index 4b050db..ba99c79 100644
--- a/src/sequential-data-fetcher.hpp
+++ b/src/sequential-data-fetcher.hpp
@@ -47,8 +47,9 @@
      * @param dataPath The path that the manager would look for already stored data packets and
      *                 will write new data packets
      */
-    SequentialDataFetcher(const ndn::Name& torrentFileName,
-                          const std::string& dataPath);
+    SequentialDataFetcher(const ndn::Name&   torrentFileName,
+                          const std::string& dataPath,
+                          bool               seed =  true);
 
     ~SequentialDataFetcher();
 
@@ -99,6 +100,7 @@
     std::string m_dataPath;
     ndn::Name m_torrentFileName;
     shared_ptr<TorrentManager> m_manager;
+    bool m_seedFlag;
 };
 
 } // namespace ntorrent