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Answer the question with C - language. Question. In the following code, assume that all function calls are successful. void sigusr1_handler(int sig) { } int main(void) { pid_t child; if ((child = fork()) == 0) {   struct sigaction sa; sa.sa_handler = sigusr1_handler; sa.sa_flags = 0; sigemptyset(&sa.sa_mask); sigaction(SIGUSR1, &sa, NULL);   while (1) { printf("working ...\n"); sleep(1); } }   else { //line 19 sleep(30); } // line 22   return 0; }   (a) If you run the above program can it create either an orphan or a zombie process? Explain how.   (b) Insert statements in only the part of the code related to the parent process (Lines 19–22) and function siguse1_handler() so that the child process would end after about 30 seconds of running. Clearly indicate where you insert any statements.

Answer the question with C - language. Question. In the following code, assume that all function calls are successful. void sigusr1_handler(int sig) { } int main(void) { pid_t child; if ((child = fork()) == 0) {   struct sigaction sa; sa.sa_handler = sigusr1_handler; sa.sa_flags = 0; sigemptyset(&sa.sa_mask); sigaction(SIGUSR1, &sa, NULL);   while (1) { printf("working ...\n"); sleep(1); } }   else { //line 19 sleep(30); } // line 22   return 0; }   (a) If you run the above program can it create either an orphan or a zombie process? Explain how.   (b) Insert statements in only the part of the code related to the parent process (Lines 19–22) and function siguse1_handler() so that the child process would end after about 30 seconds of running. Clearly indicate where you insert any statements.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Answer the question with C - language.

Question.

In the following code, assume that all function calls are successful.

void sigusr1_handler(int sig) {

}

int main(void) {

pid_t child;

if ((child = fork()) == 0) {

 

struct sigaction sa;

sa.sa_handler = sigusr1_handler;

sa.sa_flags = 0;

sigemptyset(&sa.sa_mask);

sigaction(SIGUSR1, &sa, NULL);

 

while (1) {

printf("working ...\n");

sleep(1);

}

}

 

else { //line 19

sleep(30);

} // line 22

 

return 0;

}

 

(a) If you run the above program can it create either an orphan or a zombie process? Explain

how.

 

(b) Insert statements in only the part of the code related to the parent process (Lines 19–22)

and function siguse1_handler() so that the child process would end after about 30

seconds of running. Clearly indicate where you insert any statements.


thank you for your time

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