Book Image

C++ System Programming Cookbook

By : Onorato Vaticone
Book Image

C++ System Programming Cookbook

By: Onorato 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)

Creating a daemon process

System programming is really about dealing closely with operating system resources, creating processes, threads, releasing resources, and much more. There are cases where we need a process to run indefinitely; that is, a process first offers some services or manages a resource, and then it keeps running all the time. A process that runs indefinitely in the background is called a daemon. This recipe will show how a daemon could be spawned programmatically.

How to do it...

As mentioned, a daemon is a process that runs indefinitely. A process, in order to be classified as a daemon, must have some well-defined properties that will be shown in this recipe with a program.

  1. Type the following...