diff -r 000000000000 -r 2b3e5ec03512 sim/Topology.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sim/Topology.h	Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,51 @@
+/*
+ *    Copyright 2004-2006 Intel Corporation
+ * 
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ * 
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#ifndef _TOPOLOGY_H_
+#define _TOPOLOGY_H_
+
+
+#include <vector>
+#include <oasys/debug/DebugUtils.h>
+#include <oasys/debug/Log.h>
+#include <oasys/util/StringUtils.h>
+
+namespace dtnsim {
+
+class Node;
+
+
+/**
+ * The class that maintains the topology of the network
+ */
+class Topology  {
+
+public:
+    static Node* create_node(const char* name);
+    static Node* find_node(const char* name);
+
+    typedef oasys::StringHashMap<Node*> NodeTable;
+
+    static NodeTable* node_table() { return &nodes_; }
+
+protected:
+    static NodeTable nodes_;    
+    static const int MAX_NODES  = 100;
+        
+};
+} // namespace dtnsim
+
+#endif /* _TOPOLOGY_H_ */