3. Compile and run the program below. Complete the missing information in the di

Question

3. Compile and run the program below. Complete the missing information in the diagram given after the code. Identify the parent process for P1. Identify the parent process for P2. What are the possible different outputs for this program? int main() int pid; pid -fork ); if (pid - 1) perror ("ERROR - fork "); exit (0); else if (pid 0) printf ( "child process with pid- %d, and Parent pid- %d ", getpid ), getppid()) sleep (5); printf ("After sleeping. Child process with pid- %d, and Parent pid = %d ", getpid(), ge tppid()); exit (0); else printf ("Parent process with pid getpid , getppid))i printf ("Parent exiting now ") exit (0); ed, and Parent pid- %d ", return 0; P1 P2 PID- PPID- Value Returned by fork()- PID= PPID- Value Returned by fork)- Fork

Explanation / Answer

3)
P1:
PID : 5
PPID : 4
value returned by fork() : 1
P2:
PID : 6
PPID : 1
value returned by fork() : 0

explanation:
usally the fork value returned for parent wiil be greater than or equal to 1,so fork value for in P1 is 1
and fork value returned for child will be 0, we can said that by if condition
so apart from child fork, all pid values must be greater than the 0

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