C++ System Programming Cookbook

How to do it...

In this section, we create a program where a parent process forks its child process, the child process will do an infinite loop, and the parent kills it:

1. Let's develop the child program that will be killed by the parent:

#include <stddef.h>#include <stdlib.h>#include <stdio.h>#include <unistd.h>#include <sys/types.h>#include <sys/wait.h>#include <iostream>int main(void){    std::cout << "Running child ..." << std::endl;    while (true)        ;}

2. Next, we have to develop the parent program (process_03.cpp in the /BOOK/Chapter03 folder):

#include <stddef.h>#include <stdlib.h>#include <stdio.h>#include <unistd.h>#include <sys/types.h>#include <sys/wait.h>#include <iostream>int main(void){    pid_t child;    int status; std::cout << "I am the ...