--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/servlib/contacts/InterfaceTable.h	Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,108 @@
+/*
+ *    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 _INTERFACE_TABLE_H_
+#define _INTERFACE_TABLE_H_
+
+#include <string>
+#include <list>
+#include <oasys/debug/DebugUtils.h>
+#include <oasys/util/StringBuffer.h>
+
+namespace dtn {
+
+class ConvergenceLayer;
+class Interface;
+
+/**
+ * The list of interfaces.
+ */
+typedef std::list<Interface*> InterfaceList;
+
+/**
+ * Class for the in-memory interface table.
+ */
+class InterfaceTable : public oasys::Logger {
+public:
+    /**
+     * Singleton instance accessor.
+     */
+    static InterfaceTable* instance() {
+        if (instance_ == NULL) {
+            PANIC("InterfaceTable::init not called yet");
+        }
+        return instance_;
+    }
+
+    /**
+     * Boot time initializer that takes as a parameter the actual
+     * storage instance to use.
+     */
+    static void init() {
+        if (instance_ != NULL) {
+            PANIC("InterfaceTable::init called multiple times");
+        }
+        instance_ = new InterfaceTable();
+    }
+
+    /**
+     * Constructor
+     */
+    InterfaceTable();
+
+    /**
+     * Destructor
+     */
+    virtual ~InterfaceTable();
+
+    /**
+     * Add a new interface to the table. Returns true if the interface
+     * is successfully added, false if the interface specification is
+     * invalid (or it already exists).
+     */
+    bool add(const std::string& name, ConvergenceLayer* cl, const char* proto,
+             int argc, const char* argv[]);
+    
+    /**
+     * Remove the specified interface.
+     */
+    bool del(const std::string& name);
+    
+    /**
+     * List the current interfaces.
+     */
+    void list(oasys::StringBuffer *buf);
+
+protected:
+    static InterfaceTable* instance_;
+
+    /**
+     * All interfaces are tabled in-memory in a flat list. It's
+     * non-obvious what else would be better since we need to do a
+     * prefix match on demux strings in matching_interfaces.
+     */
+    InterfaceList iflist_;
+
+    /**
+     * Internal method to find the location of the given interface in
+     * the list.
+     */
+    bool find(const std::string& name, InterfaceList::iterator* iter);
+};
+
+} // namespace dtn
+
+#endif /* _INTERFACE_TABLE_H_ */