bitgenerator.h

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/***************************************************************************
                          bitgenerator.h  -  description
                             -------------------
    begin                : Tue May 14 2002
    copyright            : (C) 2002 by Peter Haase
    email                : mail@p-haase.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License as published by the Free Software Foundation; either          *
 *   version 2.1 of the License, or (at your option) any later version.    *
 *                                                                         *
 *   This library 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     *
 *   Lesser General Public License for more details.                       *
 *                                                                         *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library; if not, write to the Free Software   *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 *                                                                         *
 ***************************************************************************/



#ifndef BITGENERATOR_HEADER
#define BITGENERATOR_HEADER

#include <stdexcept>
#include <fstream>


#include "misc.h"
#include "phbib.h"
#include "phrand.h"
#include "signals.h"
#include "basicdevice.h"


class simth::Device;

namespace simthlib
{

class BitGenerator;
std::ostream& operator<<(std::ostream &os, const BitGenerator& bg);




class BitGenerator : public simth::Device
{
  public:

    enum GenerationMode { RANDOM, ALL_ZERO, ALL_ONE};

    BitGenerator(int deviceID, simth::DeviceSystemIntf* system,
         const simth::PropertyList& pl);

    virtual ~BitGenerator(){}

    virtual void updateInputLengths();
    virtual void updateOutputLengths();

    void fillBitSequence(simth::BitSeq* bits) const;

    void setBitseqLength(int newLength){setOutputLength(newLength, 0);invariante();}

    virtual void process();

    virtual void print(std::ostream &os) const;

  protected:

    GenerationMode mode() const {return mode_;}

  private:

    simth::GslRandomWrapper rng;

    GenerationMode mode_;

    virtual void invariante() const;

  public:
    static void init(const std::string fileName, simth::Device** dev, 
             simth::DeviceSystemIntf* sysPtr, int ID,
             const std::string& regionQualifier = "");
};

inline void BitGenerator::invariante() const
{
  if(DEBUG) {
    if(outputLength(0) <= 0) {
      throw std::runtime_error("inline void bitGenerator::invariante() const : error 1");
    }
  }
}


}

#endif

---