Answered Essay: A)From the program above, identify the values of pid at lines A, B, C, and D. (Assume that the ac

int main() ( pid t pid, pid1; /* fork a child process */ pid = fork(); if (pid〈 0) { /* error occurred */ terinttstdec, Fork Failed); return 1; else if (pid == 0) { /* child process printf( child: Rad = %d, Rid); printf( child: pidl %d, = pid1); /* B*/ else /*parent process/ pid! = geteid(); printf(parent : Rid-%d, pid); printf(parent : pid! =%d, wait(NULL); pid1); /* D*/

A)From the program above, identify the values of pid at lines A, B, C, and D. (Assume that the actual pids of the parent and child are 2600 and 2603, respectively. Also assume that fork will always succeed.)

B) List all of the possible outputs (just write the A/B/C/D text; no need for pids) that could be generated by the program.

int main() ( pid t pid, pid1; /* fork a child process */ pid = fork(); if (pid〈 0) { /* error occurred */ terinttstdec, “Fork Failed”); return 1; else if (pid == 0) { /* child process printf(” child: Rad = %d”, Rid); printf( “child: pidl %d”, = pid1); /* B*/ else /*parent process/ pid! = geteid(); printf(“parent : Rid-%d”, pid); printf(“parent : pid! =%d”, wait(NULL); pid1); /* D*/

Expert Answer

 

Please find the given program below :

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
int main()
{
pid_t pid, pid1;
pid = fork();
if (pid<0){
fprintf(stderr, “Fork failed”);
return 1;
}

else if (pid==0)
{
pid1=getpid();
printf(“child: pid=%dn “, pid);
printf(“child: pid1=%d n”, pid1);
}
else
{
pid1=getpid();
printf(“parent: pid=%dn”, pid);
printf(“parent: pid1=%dn”, pid1);
wait(NULL);
}

return 0;
}

A) If the actual pid of parent and child are 2600 and 2603 respectively then by executing the program the values can be obtained as,

A = 0
B = 2603
C = 2603
D = 2600

The process is allowed to run with pid 2603 for child and 2600 for parent , At the line A the pid of child is zero and at the line B the non zero pid of child process is for parent.

B) The possible outputs generated by the program at the lines A, B, C, D are printed as ,

child: pid= 
child: pid1=  
parent: pid= 
parent: pid1= 

If the pid’s are assumed to be 2600 for parent and 2603 for child then output is ,

child: pid=0 
child: pid1=2603 
parent: pid=2603 
parent: pid1=2600
Buy Essay
Calculate your paper price
Pages (550 words)
Approximate price: -

Help Me Write My Essay - Reasons:

Best Online Essay Writing Service

We strive to give our customers the best online essay writing experience. We Make sure essays are submitted on time and all the instructions are followed.

Our Writers are Experienced and Professional

Our essay writing service is founded on professional writers who are on stand by to help you any time.

Free Revision Fo all Essays

Sometimes you may require our writers to add on a point to make your essay as customised as possible, we will give you unlimited times to do this. And we will do it for free.

Timely Essay(s)

We understand the frustrations that comes with late essays and our writers are extra careful to not violate this term. Our support team is always engauging our writers to help you have your essay ahead of time.

Customised Essays &100% Confidential

Our Online writing Service has zero torelance for plagiarised papers. We have plagiarism checking tool that generate plagiarism reports just to make sure you are satisfied.

24/7 Customer Support

Our agents are ready to help you around the clock. Please feel free to reach out and enquire about anything.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

HOW OUR ONLINE ESSAY WRITING SERVICE WORKS

Let us write that nagging essay.

STEP 1

Submit Your Essay/Homework Instructions

By clicking on the "PLACE ORDER" button, tell us your requires. Be precise for an accurate customised essay. You may also upload any reading materials where applicable.

STEP 2

Pick A & Writer

Our ordering form will provide you with a list of writers and their feedbacks. At step 2, its time select a writer. Our online agents are on stand by to help you just in case.

STEP 3

Editing (OUR PART)

At this stage, our editor will go through your essay and make sure your writer did meet all the instructions.

STEP 4

Receive your Paper

After Editing, your paper will be sent to you via email.