ContentStore with hash table library were added
diff --git a/model/ndn_contentstore.h b/model/ndn_contentstore.h
new file mode 100644
index 0000000..7e49fb6
--- /dev/null
+++ b/model/ndn_contentstore.h
@@ -0,0 +1,83 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 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: Ilya Moiseenko <iliamo@cs.ucla.edu>
+ */
+
+#ifndef ndn_contentstore_h
+#define ndn_contentstore_h
+
+#include <ns3/system-mutex.h>
+#include <list>
+#include <string>
+#include "uthash.h"
+
+using namespace std;
+
+//size of content store
+#define NDN_CONTENT_STORE_SIZE 100
+
+namespace ns3
+{
+namespace NDNabstraction
+{
+
+class CsEntry;
+typedef list<CsEntry*>::iterator CsLruIterator;
+
+//structure for CS entry
+struct CsEntry
+{
+ char *contentName;
+ int contentSize;
+
+ CsLruIterator lruPosition;
+ UT_hash_handle hh; /* makes this structure hashable */
+};
+
+
+class ContentStore
+{
+public:
+ ContentStore( int max_size=NDN_CONTENT_STORE_SIZE );
+ virtual ~ContentStore( );
+
+ // Find corresponding CS entry for the given content name
+ CsEntry* Lookup( const char *prefix );
+ //bool isValid( const CsIterator &it ) { return it!=_cs.end(); }
+
+ // Add new content to the content store. Old content will be replaced
+ void Add( const char *contentName, int contentSize );
+
+ // Dump content store entries
+ void Dump( );
+
+protected:
+ //move the given CS entry to the head of the list
+ void Promote( CsEntry &entry );
+
+private:
+ int m_maxSize; // maximum number of entries in cache
+
+ struct CsEntry *m_contentStore; // actual content store
+ list<CsEntry*> m_LRU; // LRU index of the content store
+ SystemMutex m_csMutex; // just to make sure we are not
+};
+
+}
+}
+#endif