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)

Learning about the C++ time interface

The C++11 standard really marks an important step regarding time. Before that (C++ standard 98 and before), system and application developers had to rely on implementation-specific APIs (that is, POSIX) or external libraries (for example, boost) to manipulate time, which means less portable code. This recipe will teach you how to write C++ code by using the standard time manipulation library.

How to do it...

Let's write a program to learn about the concepts of clock, time point, and duration, as supported in the C++ standards:

  1. Create a new file and call it chrono_01.cpp. We need a few includes first:
#include <iostream>
#include <vector>
...