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Learning the C, C++17, and POSIX Standards

As stated in Chapter 1, Getting Started with System Programming, system programming is the act of making system calls to perform various actions in coordination with the underlying operating system. Each operating system has its own set of system calls, and how these system calls are made is different.

To prevent the system programmer from having to rewrite their program for each different operating system, several standards have been put into place that wrap the operating system's ABI with a well-defined API.

In this chapter, we will discuss three standards—the C standard, the C++ standard, and the POSIX standard. The C and POSIX standards provide the fundamental language syntax and APIs that wrap an operating system's ABI. Specifically, the C standard defines program linking and execution, the standard C syntax (which...

Key benefits

Write system-level code leveraging C++17

Learn the internals of the Linux Application Binary Interface (ABI) and apply it to system programming

Explore C++ concurrency to take advantage of server-level constructs

Description

C++ is a general-purpose programming language with a bias toward system programming as it provides ready access to hardware-level resources, efficient compilation, and a versatile approach to higher-level abstractions. This book will help you understand the benefits of system programming with C++17. You will gain a firm understanding of various C, C++, and POSIX standards, as well as their respective system types for both C++ and POSIX. After a brief refresher on C++, Resource Acquisition Is Initialization (RAII), and the new C++ Guideline Support Library (GSL), you will learn to program Linux and Unix systems along with process management. As you progress through the chapters, you will become acquainted with C++'s support for IO. You will then study various memory management methods, including a chapter on allocators and how they benefit system programming. You will also explore how to program file input and output and learn about POSIX sockets. This book will help you get to grips with safely setting up a UDP and TCP server/client. Finally, you will be guided through Unix time interfaces, multithreading, and error handling with C++ exceptions. By the end of this book, you will be comfortable with using C++ to program high-quality systems.

What you will learn

Understand the benefits of using C++ for system programming

Program Linux/Unix systems using C++

Discover the advantages of Resource Acquisition Is Initialization (RAII)

Program both console and file input and output

Uncover the POSIX socket APIs and understand how to program them

Explore advanced system programming topics, such as C++ allocators

Use POSIX and C++ threads to program concurrent systems

Grasp how C++ can be used to create performant system applications

What do you get with Print?

Instant access to your digital eBook copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

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Jonathan L. Oct 27, 2019

This book is seriously good. I've boughten some sketchy Packt books before (books about Java Spring, for example, were rubbish), but this book restored my confidence in Packt Publishing. Dr. Rian Quinn knows his stuff. I bought this along with The C++ Standard Library. It is expensive but worth it if you want to see some good programming examples that are explained.

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SB Aug 25, 2019

This book brings together many little details which would truly strengthen foundations of any enterprise app developer. One errata — in one of the chapters, author says he talked about ELF in chapter 2, but he explains it later. So read forward and then read back. Gem of a book.

T Lengyel Aug 02, 2019

Hands-On System Programming with C++ is a book I wish I had when I was first tasked with developing high-performance C++ applications for Linux. It is a very nice introduction to a modern version of C++, the Linux developer environment, and the Linux operating system in general. The book requires a basic understanding of programming concepts and of C/C++ but then examines these basic concepts from a system's perspective that regular programmers would not need to know the details of because it "just works".How exactly do integers and floating points look in memory? How is memory allocated on the stack and heap with C++? What happens during a system call? What happens during a function call?This book provides a great overview of concepts such as these. Gaining a deeper understanding is essential to the design of high-performance applications but also for anyone interested in security. A deep, system-level understanding of applications and operating systems is key to effective reverse engineering, memory forensics, and to learn how exploits work.I can highly recommend this book to anyone just starting out, but it's also fantastic as a refresher for more seasoned developers.

paolo Aug 30, 2019

Pieno di esempi molto esaustivo negli argomenti trattati, un buon libro per rinfrescarsi le basi della programmazione in C++ e avere le informazioni di base su come lavorare su Linux

S. Sakarya Nov 04, 2019

It's an easy book to read and will help with your knowledge of C++17. It could have used some extra proofreading though, because there are numerous little errors and typos throughout the book. I like that it's aimed at Linux systems, but I would suggest making this more explicit in the title as there may be some people not using Linux. What I'm missing is Linux-specific fun stuff like epoll, SO_REUSEPORT, seccomp, etc, etc.Btw, a big no-no is teaching people a server example with one thread per connection, which is a horrible pattern for anyone aiming to work on anything high-traffic or high-performance, which one would assume would be the audience for this book. Otherwise one might as well use a scripting language instead of C++.I would consider this more of an introductory book to give a taste. It's a nice fit in one's library.

Hands-On System Programming with C++: Build performant and concurrent Unix and Linux systems with C++17

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Hands-On System Programming with C++

Learning the C, C++17, and POSIX Standards

Technical requirements

Beginning with the C standard language

Learning about the C++ standard

Beginning with the POSIX standard

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Hands-On System Programming with C++: Build performant and concurrent Unix and Linux systems with C++17

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