Example 1: Parent and Child Processes#include #include #include #include At this point, create achild process. Now wehave two processes (twocopies of this C programare running concurrently):Parent process (rc > 0)Child process (rc = 0)starts from here.Terminate accordingto an error.Wait until the child processterminates.int main(int argc, char{}This C program is saved as Process.c.This C program is available in theGoogle Classroom.*argv[])printf("hello world (pid:%d)\n", (int) getpid());int rc = fork();if (rc < 0) {// fork failed; exitfprintf(stderr, "fork failed\n");exit(1);} else if (rc == 0) {To get the PID// child (new process)printf("hello, I am child (pid:%d)\n", (int) getpid());}return 0;} else {// parent goes down this path (original process)watt(NULL);printf("hello, I am parent of %d (pid:%d)\n",rc, (int) getpid());33 2. Modify the C program shown in Example 1 in Lecture Note 2 such that the new program willgenerate one parent process and three child processes (which all of them created by the parentprocess). The output of this program will show each child process PID and its parent process ID.For example,A child process with PID: 1001 (parent process PID: 1000).A child process with PID: 1002 (parent process PID: 1000).A child process with PID: 1003 (parent process PID: 1000).Because all of them have the same parent process, their parent process PID is the same.2.1) Take a screenshot of your program and put here.2.2) Compile and run your program. Take a screenshot of your program's output and put here.

The C code is given below with output screenshot

Modify the C program shown in Example 1 in Lecture Note 2 such that the new program will generate one parent process and three child processes (which all of them created by the parent process). The output of this program will show each child process PID and its parent process ID. For example, A child process with PID: 1001 (parent process PID: 1000). A child process with PID: 1002 (parent process PID: 1000). A child process with PID: 1003 (parent process PID: 1000). Because all of them have the same parent process, their parent process PID is the same. 2.1) Take a screenshot of your program and put here.

Modify the C program shown in Example 1 in Lecture Note 2 such that the new program will generate one parent process and three child processes (which all of them created by the parent process). The output of this program will show each child process PID and its parent process ID. For example, A child process with PID: 1001 (parent process PID: 1000). A child process with PID: 1002 (parent process PID: 1000). A child process with PID: 1003 (parent process PID: 1000). Because all of them have the same parent process, their parent process PID is the same. 2.1) Take a screenshot of your program and put here.

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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