Question

I need help to solve this ,I want someone who is expert with C to•Write a C program (for Linux/Unix, compiling in GCC) that:

–Sets the value of variable i to 1.

–Forks the process.

–In the child process, decrements the value of i. Print the value of i and a message that it was printed by the child process.

–In the parent process, increments the value of i. Wait for the child process to terminate, then print the value of i and a message that it was printed by the parent process.

Answer 1

PROGRAM:

#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
#include<sys/wait.h>

void fork_function()
{
    int i = 1;

    if (fork() == 0)
    {
       i--;
        printf("i = %d\n", i);
       printf("Printed by child process\n");
    }
    else
    {
       i++;
       wait(NULL);
       printf("Child process terminated\n");
       printf("i = %d\n", i);
       printf("Printed by parent process\n");
    }
}
int main()
{
    fork_function();
    return 0;
}

SCREENSHOTS: