Add shutdown wrapper

src/ccnx/sync-socket.cc

@@ -46,7 +46,9 @@ SyncSocket::SyncSocket (const string &syncPrefix,
 }
 
 SyncSocket::~SyncSocket()
-{}
+{
+  m_handler->shutdown();
+}
 
 bool 
 SyncSocket::publishData(const std::string &prefix, uint32_t session, const char *buf, size_t len, int freshness)

src/sync-logic.cc

@@ -129,6 +129,7 @@ SyncLogic::SyncLogic (const Name& syncPrefix,
 SyncLogic::~SyncLogic ()
 {
   m_handler->clearInterestFilter (Name(m_syncPrefix));
+  m_handler->shutdown();
 }
 
 #ifdef NS3_MODULE