# include <stdio.h>
# include </usr/include/sys/types.h>
# include </usr/include/sys/shm.h>
# include </usr/include/sys/ipc.h>

# include "forkjoin.h"int main()
{
    int arr1[10]={1,1,1,1,1,1,1,1,1,1};
    int id;
    int iCount;
    int shmid;
    int *arr2;
        shmid=shmget(IPC_PRIVATE,20,IPC_CREAT| SHM_R | SHM_W);
    arr2=(int *)shmat(shmid,0,0);
    
    for(iCount=0;iCount<10;iCount++)
    {
        arr2[iCount]=2;
    }
    
    
    
    /* Copy Array-1 to Array-2 Using 2 Processes */

    id=process_fork(2);
    if(id==0)
    {
        /* Parent Process */
for(iCount=0;iCount<10;iCount=iCount+2)
        {
            arr2[iCount]=arr1[iCount];    
        }
    }
    else
    {
        /* Child Process */
for(iCount=1;iCount<10;iCount=iCount+2)
        {
            arr2[iCount]=arr1[iCount];
        }
    }
    
    process_join(2,id);
    
    printf("\n Array 2 ... \n");
    
    for(iCount=0;iCount<10;iCount++)
    {
        printf("arr2[%d] : %d\n",iCount,arr2[iCount]);
    }    
        
    return 0;
}

/* Output

[divyen@localhost PP-TW1]$ ./Prog04Sh

 Array 2 ...
arr2[0] : 1
arr2[1] : 1
arr2[2] : 1
arr2[3] : 1
arr2[4] : 1
arr2[5] : 1
arr2[6] : 1
arr2[7] : 1
arr2[8] : 1
arr2[9] : 1


*/