demt1_b.cpp

its creates virtual multi tasking i DOS

/*******************************************************
 *                                                     *
 *  Program : DEMT1_B      Language : Borland C++      *
 *                                                     *
 *  Modified : 20 nov 2003                             *
 *                                                     *
 *  Copyright (c) 1988,2003, ORITECH    V 5.1          *
 *  All rights reserved.                               *
 *                                                     *
 *******************************************************
 *                                                     *
 *  DEMT1_B.CPP     Demo EasyTask                      *
 *                                                     *
 *******************************************************/

#include <stdlib.h>
#include <stdio.h>
#include <graphics.h>
#include <dos.h>
#include <conio.h>
#include <string.h>
#include <float.h> 
#include <time.h>
#include "etlib.h"


PMultiTask taskclockptr, taskcountptr;

void taskclock(pvoid, pvoid)  // task 1 
{
  char tbuffer[9];
  char sb[128];
  
  pausemode(MTT);  // save context 
  window(1,1,80,25);
  textbackground(WHITE);
  textcolor(LightBlue);
  do
  {
    gotoxy(70,1);
    sprintf(sb,"%s",_strtime(tbuffer)); 
    cprintf(sb);
    taskdelay(1000);
  } while (TRUE);
}

void taskcount(pvoid, pvoid)  // task 2 
{
  long x;                                 
  char sb[128];

  pausemode(MTT);  // save context 
  textbackground(BLACK);
  textcolor(Yellow);
  window(20,15,30,20);
  x = 0;
  do
  {
    x++;
    if ((x%9 == 0) && (x%4 == 0)) 
    {          
      sprintf(sb,"x=%li\n\r",x);
      cprintf(sb);
    }
    pause();
  } while (!kbhit());
  killtask(taskclockptr);
}

void main(void)
{
  ETKer_Init();
  textbackground(BLACK);
  textcolor(WHITE);
  clrscr();
  taskclockptr = newtask(taskclock,8000,1,MT_CHILD,NULL,0,NULL);
  taskcountptr = newtask(taskcount,8000,1,MT_CHILD,NULL,0,NULL);
  waitnotask();
  printf("Program End\n");
}