1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
labwork [276]
3 years ago
11

Write a C program that spins a child process. The child process reads a number from the keyboard and passes the number on to the

parent process via a pipe. The parent process waits until number becomes available and reads it from the pipe, prints the number to the screen and exits.
Computers and Technology
1 answer:
Murrr4er [49]3 years ago
4 0

# include <stdio.h>

int main()

{    

   int pid;

   pid=getpid();

   printf(\"Current Process ID is : %d\\n\",pid);

   printf(\"[ Forking Child Process ... ] \\n\");    

   pid=fork(); /* This will Create Child Process and

              Returns Child\'s PID */

   if(pid < 0)

   {

       /* Process Creation Failed ... */

       exit(-1);

   }

   else if(pid==0)  

   {

       /* Child Process */

       printf(\"Child Process Started ...\\n\");

       printf(\"Child Process Completed ...\\n\");

   }

   else  

   {

       /* Parent Process */

       sleep(10);

       printf(\"Parent Process Running ... \\n\");

       printf(\"I am In Zombie State ...\\n\");

       while(1)

       {

           /*  

               Infinite Loop that Keeps the

                  Process Running

           */

       }

   }    

   return 0;

}

# include <stdio.h>

int main()

{    

   int pid;

   pid=getpid();

   printf(\"Current Process ID is : %d\\n\",pid);

   printf(\"[ Forking Child Process ... ] \\n\");    

   pid=fork(); /* This will Create Child Process and

              Returns Child\'s PID */

   if(pid < 0)

   {

       /* Process Creation Failed ... */

       exit(-1);

   }

   else if(pid==0)  

   {

       /* Child Process */

       printf(\"Child Process Started ...\\n\");

       printf(\"Child Process Completed ...\\n\");

   }

   else  

   {

       /* Parent Process */

       sleep(10);

       printf(\"Parent Process Running ... \\n\");

       printf(\"I am In Zombie State ...\\n\");

       while(1)

       {

           /*  

               Infinite Loop that Keeps the

                  Process Running

           */

       }

   }    

   return 0;

}

You might be interested in
Cookies are to improve the access of internet information. Therefore for the sake of you own privacy and security you should not
lina2011 [118]
The answer is a. True
3 0
3 years ago
Read 2 more answers
a. displays the sum of all even numbers between 2 and 100 (inclusive). b. displays the sum of all squares between 1 and 100 (inc
LuckyWell [14K]

Answer:

The program required is in the explanation segment.

Explanation:

Program :

import math

# a. displays the sum of all even numbers between 2 and 100 (inclusive).

print("All even numbers from 2 to 100 inclusive ")

sum=0

i=2

while i<=100:

if i %2 ==0:

sum=sum+i

print(i,end=" ")

i=i+1

print("\nThe sum of all even numbers between 2 and 100 (inclusive) :",sum);

#b. displays the sum of all squares between 1 and 100 (inclusive).

print("\nAll squares numbers from 1 to 100 inclusive:")

i=1

sum=0

while i<=100:

print(i*i,end=" ")

i=i+1

sum=sum+(i*i)

print("\n\nThe sum of all squares between 1 and 100 (inclusive) is :",sum)

#c. displays the powers of 2 from 1 up to 256.

print("\nAll powers of 2 from 2 ** 0 to 2 ** 8:")

i=0

while True:

p=math.pow(2,i)

if p>256:

break

print("2 ** ",i," is ",int(p))

i=i+1

#d. displays the sum of all odd numbers between a and b (inclusive), where a and b are inputs

print("\nCompute the sum of all odd integers between two intgers ")

a=int(input("Enter an integer:"))

b=int(input("Enter another integer: "))

count = 0

temp=a

sum=0

while a<=b:

if a%2!=0:

print(a,end=" ")

sum=sum+a

a=a+1

print("\nThe total of the odd numbers from ", temp ," to ", b ,"is",sum)

#e.displays the sum of all odd digits of an input. (For example, if the input is 32677, the sum would be 3 + 7 + 7 = 17.)

print("\nCompute the sum of the odd digits in an integer ")

n=int(input("Enter an integer:"))

count=0

sum=0

temp=n

while n!=0:

rem = n%10

if rem%2!=0:

sum=sum+rem

count=count+1

n=int(n/10)

print("Sum of the odd digits is ",sum)

print("The total of the odd digits in ",temp," is ",count)

4 0
3 years ago
Which 3 navigation features are missing in a reports only user view?
san4es73 [151]

Explanation:

when a user changes his or her view to a Report only view when using QuickBooks online they only see a report list page, without having such features as; Navigation panel, Search box or Quick Create (+) icon.

7 0
3 years ago
Read 2 more answers
You have a website that sells widgets, and you have a category page specifically for blue widgets. After some extensive outreach
REY [17]

Answer:

It will increase your ranking on the homepage.

Explanation:

Widgets are easy to use software applications made up of one or more components.

Widgets will provide you with a quick access to information or data and there won't be any need to open the app that manages that information.

That is to say, without requiring you to open the app that manages a certain data or information you want to access, Widgets opens it for you.

For instance, The Calendar widget, provides you a quick view of your upcoming calendar events without opening the Calendar app.

Your rankings on the homepage will increase if more links are added to your blue widgets.

7 0
3 years ago
How to create a photo album in PowerPoint 2013
DerKrebs [107]

Access the Insert tab of the Ribbon, and click the down-arrow within Photo Album button. This brings up a small menu -- choose the New Photo Album option, This opens the Photo Album dialog box Now click the ‘File/Disk….’ button , which opens the Insert New Pictures dialog box Navigate to where your photos are, and select the desired pictures:  To select all pictures in your folder, press the keyboard shortcut Ctrl + A.  To select adjacent pictures, click on the first picture, then press and hold the Shift key and select the last picture in the sequence. To select multiple non-adjacent pictures, press and hold the Ctrl key while clicking on each picture you want to insert.  When the selection is made, click the Insert button. This will add the selected pictures in the Pictures in album list in the Photo Album dialog box.  The Photo Album dialog box provides several options such as re-ordering the pictures, making picture adjustments, changing picture layouts, and applying Themes. click the Create button, above to insert the pictures you have selected.  A seperate presentation will be created for the Photo Album, Save your presentation.


8 0
3 years ago
Other questions:
  • Candace opened an email from a person she didn't know and clicked on a pop-up in the email that installed a virus on her compute
    8·2 answers
  • In the ______ stage of the systems development life cycle, the design specifications are translated into computer code.
    11·1 answer
  • Which is NOT a benefit of using visual aids?
    9·2 answers
  • Consider a system consisting of m resources of the same type, being shared by n processes. Resources can be requested and releas
    13·1 answer
  • Write a program that allows the user to enter the last names of five candidates in a local election and the votes received by ea
    12·1 answer
  • Match the following.
    8·1 answer
  • Does anyone know how to change your username? plz help I don't want my name on this lmo
    8·2 answers
  • Being a part of an organization or giving back to the community is which rewards of work factor?
    6·1 answer
  • ..............................................................................
    8·1 answer
  • What is good work ethic?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!