diff --git a/in-progress/ccnx-rit.cpp b/in-progress/ccnx-rit.cpp
new file mode 100644
index 0000000..b84f9d0
--- /dev/null
+++ b/in-progress/ccnx-rit.cpp
@@ -0,0 +1,64 @@
+/* 
+ * File:   ndn_rit.cpp
+ * Author: cawka
+ * 
+ * Created on December 15, 2010, 2:02 PM
+ */
+
+#include "ndn_rit.h"
+
+NdnRit::NdnRit( ) { }
+
+NdnRit::~NdnRit( ) { }
+
+
+//find corresponding RIT entry for the given nonce
+RitIterator NdnRit::lookup( int nonce )
+{
+	QNThreadLock lock( &_ritMutex );
+
+	RitIterator entry=_rit.find( nonce );
+	return entry;
+}
+
+
+// add new RIT entry
+// returns false if entry already exists, otherwise returns true
+bool NdnRit::add( int nonce, clocktype expire )
+{
+	QNThreadLock lock( &_ritMutex );
+
+	RitIterator entry=_rit.find( nonce );
+	if( isValid(entry) ) return false;
+
+    RitEntry re;
+    re.nonce = nonce;
+	re.expireTime = expire;
+
+	_rit[ nonce ] = re;
+
+	_ritExpirationList.push_back( &(_rit[nonce]) );
+}
+
+
+void NdnRit::cleanExpired( clocktype time )
+{
+	QNThreadLock lock( &_ritMutex );
+
+	while( !_ritExpirationList.empty() )
+    {
+        RitEntry *head = _ritExpirationList.front( );
+
+        if( head->expireTime <= time )
+		{
+			//delete the head RIT entry
+			_rit.erase( head->nonce );
+			_ritExpirationList.pop_front( );
+		}
+        else
+            break;
+    }
+    //printf("Node %d: RIT entries\n", node->nodeId);
+    //PrintRitEntries(ndn->riList);
+}
+