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C:/temp/src/j2k/QNX4/Train/Segment.hpp

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#ifndef __J2K__Train__Segment_HPP__
#define __J2K__Train__Segment_HPP__

#include <j2k/Fred/Basic.hpp>
#include <j2k/Fred/Boolean.hpp>
#include <j2k/Fred/StdTypes.hpp>
#include <j2k/Fred/QNX/System.hpp>

#define  OPEN    1       // * This is the switch position
#define  CLOSE   0

/*
          Previous  ------------------>  Next
     = = = = = = = = = * = = = = = = = = = * = = = = = = = = = =
               |                   |
               |<----------------->|
                   Track Segment
*/

class Segment
{
public:
  Segment();                   // * Initialize segment

  void setSegmentID(int ID);   // * Set segment ID
  int  getSegmentID();         // * Get segment ID
  int  isOccupied();           // * Track segment querry

  void setNext( int SegmentID );
  void setPrev( int SegmentID );

  int  getNext();
  int  getPrev();

private:
  int SegmentID;               // * Segment Identification 1-16
  int Next;
  int Prev;
  int Port_Value;              // * Port byte value 
  int Port_Address;            // * This is the port address

  int mask( int bit );         // * This computes a power of 2
};

#endif

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