ComputerScienceExpert

(11)

$18/per page/

About ComputerScienceExpert

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Applied Sciences,Calculus See all
Applied Sciences,Calculus,Chemistry,Computer Science,Environmental science,Information Systems,Science Hide all
Teaching Since: Apr 2017
Last Sign in: 103 Weeks Ago, 2 Days Ago
Questions Answered: 4870
Tutorials Posted: 4863

Education

  • MBA IT, Mater in Science and Technology
    Devry
    Jul-1996 - Jul-2000

Experience

  • Professor
    Devry University
    Mar-2010 - Oct-2016

Category > Programming Posted 03 May 2017 My Price 11.00

Programming problem 3.21

Programming problem 3.21(1st part of the questions is the 3.21 png)

#include <sys/types.h>

#include <stdio.h>

#include <unistd.h>

int main()

{ pid_t pid, pid1;

    /* fork a child process */

    pid = fork();

    if (pid < 0) { /* error occurred */

        fprintf(stderr, "Fork Failed"); return 1;

 

    }else if (pid == 0) { /* child process */ pid1 = getpid();

        printf("child: pid = %dn",pid); /* A */

        printf("child: pid1 = %dnn",pid1); /* B */

    }else { /* parent process */

        pid1 = getpid();

        printf("parent: pid = %dn",pid);

        /* C */ printf("parent: pid1 = %d n",pid1); /* D */

        wait(NULL);

    }

    return 0;

}

1. Besides requirements in the Problem, your program should also display the process IDs of both the parent and child processes. Follow the code in Figure 3.34 to structure your program and to print the process IDs. Capture a screenshot after running your program. A sample screenshot is provided below (the output of your program should have the same structure as in the sample screenshot).

2.A skeleton of the program is provided, which has code to obtain user’s input number from commandline. Add your own code on top of the existing code

#include
#include
#include

int main(int argc, char *argv[])
{
pid_t pid, pid1;
int n;

   if (argc == 1) {
       fprintf(stderr,"Usage: ./a.out n");

       return -1;
   }

   n = atoi(argv[1]);

   /* add your code below, following the code structure of Figure 3.34 (page 152) */

   return 0;
}

 

3.You can use the gcc command to compile the program. See the sample screenshot below. (Example 1 and 2)

Attachments:

Answers

ComputerScienceExpert
(11)
Status NEW Posted 03 May 2017 12:05 AM My Price 11.00

-----------

Attachments

file 1493772775-Solutions file 2.docx preview (51 words )
H-----------ell-----------o S-----------ir/-----------Mad-----------am ----------- Th-----------ank----------- yo-----------u f-----------or -----------you-----------r i-----------nte-----------res-----------t a-----------nd -----------buy-----------ing----------- my----------- po-----------ste-----------d s-----------olu-----------tio-----------n. -----------Ple-----------ase----------- pi-----------ng -----------me -----------on -----------cha-----------t I----------- am----------- on-----------lin-----------e o-----------r i-----------nbo-----------x m-----------e a----------- me-----------ssa-----------ge -----------I w-----------ill----------- be----------- qu-----------ick-----------ly -----------onl-----------ine----------- an-----------d g-----------ive----------- yo-----------u e-----------xac-----------t f-----------ile----------- an-----------d t-----------he -----------sam-----------e f-----------ile----------- is----------- al-----------so -----------sen-----------t t-----------o y-----------our----------- em-----------ail----------- th-----------at -----------is -----------reg-----------ist-----------ere-----------d o-----------n -----------THI-----------S W-----------EBS-----------ITE-----------. ----------- Th-----------ank----------- yo-----------u -----------
Not Rated(0)