examples: adding debugged implementation of a CustomApp, along with an example using it
diff --git a/examples/custom-apps/custom-app.h b/examples/custom-apps/custom-app.h
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+++ b/examples/custom-apps/custom-app.h
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+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011-2012 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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+// custom-app.h
+
+#ifndef CUSTOM_APP_H_
+#define CUSTOM_APP_H_
+
+#include "ns3/ndn-app.h"
+
+namespace ns3 {
+
+/**
+ * @brief A simple custom application
+ *
+ * This applications demonstrates how to send Interests and respond with ContentObjects to incoming interests
+ *
+ * When application starts it "sets interest filter" (install FIB entry) for /prefix/sub, as well as
+ * sends Interest for this prefix
+ *
+ * When an Interest is received, it is replied with a ContentObject with 1024-byte fake payload
+ */
+class CustomApp : public ndn::App
+{
+public:
+ // register NS-3 type "CustomApp"
+ static TypeId
+ GetTypeId ();
+
+ // (overridden from ndn::App) Processing upon start of the application
+ virtual void
+ StartApplication ();
+
+ // (overridden from ndn::App) Processing when application is stopped
+ virtual void
+ StopApplication ();
+
+ // (overridden from ndn::App) Callback that will be called when Interest arrives
+ virtual void
+ OnInterest (const Ptr<const ndn::InterestHeader> &interest, Ptr<Packet> origPacket);
+
+ // (overridden from ndn::App) Callback that will be called when Data arrives
+ virtual void
+ OnContentObject (const Ptr<const ndn::ContentObjectHeader> &contentObject,
+ Ptr<Packet> payload);
+
+private:
+ void
+ SendInterest ();
+};
+
+} // namespace ns3
+
+#endif // CUSTOM_APP_H_