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+// $Id: buffer_monitor.hpp 5188 2012-08-30 00:31:31Z dub $
+
+/*
+ Copyright (c) 2007-2012, Trustees of The Leland Stanford Junior University
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ Redistributions of source code must retain the above copyright notice, this 
+ list of conditions and the following disclaimer.
+ Redistributions in binary form must reproduce the above copyright notice, this
+ list of conditions and the following disclaimer in the documentation and/or
+ other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _BUFFER_MONITOR_HPP_
+#define _BUFFER_MONITOR_HPP_
+
+#include <vector>
+#include <iostream>
+
+using namespace std;
+
+class Flit;
+
+class BufferMonitor {
+  int  _cycles ;
+  int  _inputs ;
+  int  _classes ;
+  vector<int> _reads ;
+  vector<int> _writes ;
+  int index( int input, int cl ) const ;
+public:
+  BufferMonitor( int inputs, int classes ) ;
+  void cycle() ;
+  void write( int input, Flit const * f ) ;
+  void read( int input, Flit const * f ) ;
+  inline const vector<int> & GetReads() const {
+    return _reads;
+  }
+  inline const vector<int> & GetWrites() const {
+    return _writes;
+  }
+  inline int NumInputs() const {
+    return _inputs;
+  }
+  inline int NumClasses() const {
+    return _classes;
+  }
+  void display(ostream & os) const;
+
+} ;
+
+ostream & operator<<( ostream & os, BufferMonitor const & obj ) ;
+
+#endif