limits: Introducing modularity for Interest limits
Now ndn::Limits object can be aggregated on a face/FIB entry. A
forwarding strategy module is responsible in creating an appropriate
implementation of the Interest limits module.
diff --git a/utils/ndn-limits-window.h b/utils/ndn-limits-window.h
new file mode 100644
index 0000000..b1f2208
--- /dev/null
+++ b/utils/ndn-limits-window.h
@@ -0,0 +1,84 @@
+/* -*- 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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef _NDN_LIMITS_WINDOW_H_
+#define _NDN_LIMITS_WINDOW_H_
+
+#include "ndn-limits.h"
+
+namespace ns3 {
+namespace ndn {
+
+/**
+ * \ingroup ndn
+ * \brief Structure to manage limits for outstanding interests
+ */
+class LimitsWindow :
+ public Limits
+{
+public:
+ typedef Limits super;
+
+ static TypeId
+ GetTypeId ();
+
+ /**
+ * \brief Constructor
+ * \param prefix smart pointer to the prefix for the FIB entry
+ */
+ LimitsWindow ()
+ : m_outstanding (0)
+ { }
+
+ virtual
+ ~LimitsWindow () { }
+
+
+ // from limits
+ virtual bool
+ IsBelowLimit ();
+
+ ////////////////////////////////////////////////////////////////////////////
+ ////////////////////////////////////////////////////////////////////////////
+ ////////////////////////////////////////////////////////////////////////////
+
+ // specific to window-based limits
+
+ /**
+ * @brief Remove outstanding interests
+ */
+ void
+ RemoveOutstanding ();
+
+ double
+ GetOutstanding () const
+ {
+ return m_outstanding;
+ }
+
+protected:
+ TracedValue< double > m_outstanding;
+};
+
+
+} // namespace ndn
+} // namespace ns3
+
+#endif // _NDN_LIMITS_WINDOW_H_