Question

Name: Score:/60 Submit the assignment at the blackboard. The file name should be named as name HW2.c Due date: Friday, 5th of the October 2018 by 11:59 PM 1. Late submission won't be accepted 2. Shared code (except reference code as directed) will bring severe consequence - code scanning will be performed by default. Scenario: You planned to write a program to print out, Working", and then "You did a good job!". However, while writing the code, you made a mistake of inserting an infinite loop in the program, func1 as shown below. In order to prevent such possible mistake, you had added an interrupt handler that handles the signal (control+ c) to kill the foreground process and stops the infinite loop. But you have still problems such that your program does not print as planned. When you stop the process, you cannot see "You did a good job!". The program and the output after executing the program are as follows. Program #include <signal.h> # include "tipi-hdrh" void intHandler) f printf This is an interrupt handler)n": exit(EXIT_SUCCESS): void func10 printf("Working!\n"): while(1) infinite loop made by mistake* printf Looping... In): sleep(1): void func20O printf( Resumed!\n) exit (EXIT_SUCCESS);

Need help with this please! Linux related!

Answer 1

/*

* File: name_HW2.c

* Author: Shravan kumar
*
* Created on 28 September, 2018, 1:17 AM
*/

#include <signal.h>
#include <unistd.h>
#include "tlpi_hdr.h"
#include <setjmp.h>

/* declare variable of type jmp_buf */
jmp_buf resume_here;

void intHandler()
{
printf("This is an interrupt handler\n");
longjmp(resume_here,1);

// Long jmp is used here so that the control goes to setjmp after ctrl +c is entered

exit(EXIT_SUCCESS);   
}

void func1()
{
printf("Working!\n");
while(1)
{/*Infinite loop made by mistake*/

printf("Looping...\n");
sleep(1);

}
}
void func2 ()
{
printf("Resumed!\n");
return; // return statement returns to main function
exit(EXIT_SUCCESS);
  
  
}

int main (int argc, char*argv[])
{
switch (setjmp(resume_here)) // switch case with set jmp is used
{
case 0:
signal(SIGINT,intHandler);
func1();
case 1:
func2();
  
}
printf("You did a good job!");
}   

Output:

null