/* 
 * histogram.h
 *
 * Copyright (c) 2009 by Tor M. Aamodt, Wilson W. L. Fung and the 
 * University of British Columbia
 * Vancouver, BC  V6T 1Z4
 * All Rights Reserved.
 * 
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 * NOTE: The files libcuda/cuda_runtime_api.c and src/cuda-sim/cuda-math.h
 * are derived from the CUDA Toolset available from http://www.nvidia.com/cuda
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 * textbook "Principles and Practices of Interconnection Networks" available 
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 * which is distributed seperately by NVIDIA under separate terms and 
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
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 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 * 4. This version of GPGPU-SIM is distributed freely for non-commercial use only.  
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 * 5. No nonprofit user may place any restrictions on the use of this software,
 * including as modified by the user, by any other authorized user.
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 * 6. GPGPU-SIM was developed primarily by Tor M. Aamodt, Wilson W. L. Fung, 
 * Ali Bakhoda, George L. Yuan, at the University of British Columbia, 
 * Vancouver, BC V6T 1Z4
 */

#ifndef HISTOGRAM_H
#define HISTOGRAM_H

#ifdef __cplusplus

#include <string>

class binned_histogram {
protected:

   std::string m_name;
   int m_nbins;
   int *m_bins;        // bin boundaries
   int *m_bin_cnts;    // counters
   int m_maximum;      // the maximum sample

public:

   binned_histogram (std::string name = "", int nbins = 32, int* bins = NULL);

   binned_histogram (const binned_histogram& other);

   void reset_bins ();

   void add2bin (int sample);

   void fprint (FILE *fout);

   virtual ~binned_histogram ();

};

class pow2_histogram : public binned_histogram {

public:

   pow2_histogram ( std::string name = "", int nbins = 32, int* bins = NULL);

   ~pow2_histogram() {}

   void add2bin (int sample);

};

class linear_histogram : public binned_histogram {

private:

   int m_stride;

public:

   linear_histogram (int stride = 1, const char *name = NULL, int nbins = 32, int* bins = NULL);

   ~linear_histogram() {}

   void add2bin (int sample);

};

#endif

#endif /* HISTOGRAM_H */