Programming

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <pthread.h>

typedef struct Data
{
  int x[10000];
  int y[12000];
  int size;
  char *filename;
} data_t;


// Comparison function for qsort
int cmpint (int *a, int *b)
{
  if (*a < *b)
     return -1;
  else
     if (*a > *b)
       return 1;
     else
       return 0;
}


// Sort contents of files
// How to generalize this to work with two separate arrays???????
void *sort(void *data)
{
  FILE *fp;
  //long lSize = ftell (fp);
  fp = fopen(filename.x[], "rb");
  fread(x, 10000, size, fp);
  
  //data_t *my_data = (data_t *) data; 

  qsort(x,1000,sizeof(int),cmpint);
  pthread_exit(0);

}


int main()  {

  int i=0,j=0,k=0;
  char z[22000];
  pthread_t px, py;

  pthread_create(&px, NULL, sort, (void *) &data_x);
  pthread_create(&py, NULL, sort, (void *) &data_x);

  pthread_join(px, 0);
  pthread_join (py, 0);

  // Merge x and y into z, sorted
  while (i<1000 || j < 1000)
  {
    if (j == 1000)
       z[k++]=x[i++];

    else
       if (i<1000 && (x[i]<y[j]))
          z[k++]=x[i++];
    else
          z[k++]=y[j++];
  }


}