Book Image

C++ System Programming Cookbook

By : Vaticone
Book Image

C++ System Programming Cookbook

By: Vaticone

Overview of this book

C++ is the preferred language for system programming due to its efficient low-level computation, data abstraction, and object-oriented features. System programming is about designing and writing computer programs that interact closely with the underlying operating system and allow computer hardware to interface with the programmer and the user. The C++ System Programming Cookbook will serve as a reference for developers who want to have ready-to-use solutions for the essential aspects of system programming using the latest C++ standards wherever possible. This C++ book starts out by giving you an overview of system programming and refreshing your C++ knowledge. Moving ahead, you will learn how to deal with threads and processes, before going on to discover recipes for how to manage memory. The concluding chapters will then help you understand how processes communicate and how to interact with the console (console I/O). Finally, you will learn how to deal with time interfaces, signals, and CPU scheduling. By the end of the book, you will become adept at developing robust systems applications using C++.
Table of Contents (13 chapters)

Learning how to send a signal to another process

There could be scenarios where a process needs to send a signal to other processes. This recipe will teach you how to achieve that using a hands-on approach.

How to do it...

We'll write a program that will send the SIGTERM signal to a running process. We'll see the process terminating as expected. On a shell, open a new source file called signal_send.cpp. We'll be using the system call, kill(), which sends a signal sig to a process specified by pid. The program accepts an input parameter, which is pid of the program to terminate:

#include<stdio.h>
#include<signal.h>
#include <iostream>

int main(int argc, char* argv[])
{
std...