//--------------------------------------------------------------------------
// File 
//    merge-thread.h
// PROGRAM Description:
//    class definition file for merge thread, collector and master thread 
//--------------------------------------------------------------------------

#ifndef _SORT_H 
#define _SORT_H 

#include <iostream.h>
#include "ThreadClass.h"

// macro defines

#define  MAX_THREADS    128
#define  MAX_CHANNELS   128

//-------------------------------------------------------------------------
// SortThread Class:
//   This is the merge thread
//-------------------------------------------------------------------------

class MergeThread : public Thread
{
     public:                  // constructor and destructor
          MergeThread(int threadID);
          ~MergeThread();

     private:
          void ThreadFunc();  // thread body
          int  Index;         // index of the sort thread
};

//-------------------------------------------------------------------------
// MasterThread Class
//   This is the thread that supplies input to the first level merge
//   threads
//-------------------------------------------------------------------------

class MasterThread : public Thread
{
     public:
          MasterThread(int threadID, int numberOfData);

     private:
          void ThreadFunc();
          int  NumberOfData;
};

//-------------------------------------------------------------------------
// CollectorThread  Class
//   This is the thread that collects the sorted results from the 
//   last level
//-------------------------------------------------------------------------

class CollectorThread  : public Thread
{
     public:
          CollectorThread (int threadID);

     private:
          void ThreadFunc();
};

#endif // _SORT_H