Boost.Asio C++ Network Programming Cookbook

Dmytro Radchuk

• Verlag: Packt Publishing
• Jahr: 2016
• ISBN:
  9781783986545
• Auflage: 1
• Thema: Computer Science
• Thema: Systems Architecture

Over 25 hands-on recipes to create robust and highly-efficient cross-platform distributed applications with the Boost.Asio library

About This Book

• Build highly efficient distributed applications with ease
• Enhance your cross-platform network programming skills with one of the most reputable C++ libraries
• Find solutions to real-world problems related to network programming with ready-to-use recipes using this detailed and practical handbook

Who This Book Is For

If you want to enhance your C++ network programming skills using the Boost.Asio library and understand the theory behind development of distributed applications, this book is just what you need. The prerequisite for this book is experience with general C++11. To get the most from the book and comprehend advanced topics, you will need some background experience in multithreading.

What You Will Learn

• Boost your working knowledge of one of the most reputable C++ networking libraries—Boost.Asio
• Familiarize yourself with the basics of TCP and UDP protocols
• Create scalable and highly-efficient client and server applications
• Understand the theory behind development of distributed applications
• Increase the security of your distributed applications by adding SSL support
• Implement a HTTP client easily
• Use iostreams, scatter-gather buffers, and timers

In Detail

Starting with recipes demonstrating the execution of basic Boost.Asio operations, the book goes on to provide ready-to-use implementations of client and server applications from simple synchronous ones to powerful multithreaded scalable solutions. Finally, you are presented with advanced topics such as implementing a chat application, implementing an HTTP client, and adding SSL support. All the samples presented in the book are ready to be used in real projects just out of the box.

As well as excellent practical examples, the book also includes extended supportive theoretical material on distributed application design and construction.

Style and approach

This book is a set of recipes, each containing the statement and description of a particular practical problem followed by code sample providing the solution to the problem and detailed step-by-step explanation. Recipes are grouped by topic into chapters and ordered by the level of complexity from basic to advanced.

Boost.Asio C++ Network Programming Cookbook

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Table of Contents

Boost.Asio C++ Network Programming Cookbook

Credits

About the Author

About the Reviewer

www.PacktPub.com

Support files, eBooks, discount offers, and more

Why subscribe?

Free access for Packt account holders

Preface

What this book covers

What you need for this book

Who this book is for

Sections

Getting ready

How to do it…

How it works…

There's more…

See also

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. The Basics

Introduction

Creating an endpoint

Getting ready

How to do it…

Creating an endpoint in the client to designate the server

Creating the server endpoint

How it works…

There's more...

See also

Creating an active socket

How to do it...

How it works...

There's more...

See also

Creating a passive socket

How to do it…

How it works…

See also

Resolving a DNS name

How to do it…

How it works…

There's more…

See also

Binding a socket to an endpoint

How to do it…

How it works…

There's more…

See also

Connecting a socket

How to do it…

How it works…

There's more…

See also

Accepting connections

How to do it…

How it works…

See also

2. I/O Operations

Introduction

I/O buffers

Synchronous and asynchronous I/O operations

Additional operations

Using fixed length I/O buffers

How to do it…

Preparing a buffer for an output operation

Preparing a buffer for an input operation

How it works…

Preparing a buffer for an output operation

Preparing a buffer for an input operation

See also

Using extensible stream-oriented I/O buffers

How to do it…

How it works…

See also

Writing to a TCP socket synchronously

How to do it…

How it works…

Alternative – the send() method

There's more...

See also

Reading from a TCP socket synchronously

How to do it…

How it works…

Alternative – the receive() method

There's more...

The asio::read() function

The asio::read_until() function

The asio::read_at() function

See also

Writing to a TCP socket asynchronously

How to do it…

How it works…

There's more...

See also

Reading from a TCP socket asynchronously

How to do it…

How it works…

There's more...

See also

Canceling asynchronous operations

How to do it…

How it works…

There's more...

See also

Shutting down and closing a socket

How to do it…

The client application

The server application

Closing a socket

How it works…

See also

3. Implementing Client Applications

Introduction

The classification of client applications

Synchronous versus asynchronous

The sample protocol

Implementing a synchronous TCP client

How to do it…

How it works…

The SyncTCPClient class

The main() entry point function

See also

Implementing a synchronous UDP client

How to do it…

How it works…

The SyncUDPClient class

The main() entry point function

See also

Implementing an asynchronous TCP client

How to do it…

How it works…

Starting the application – the main() entry point function

Request completion – the handler() callback function

The AsyncTCPClient class – initializing

The AsyncTCPClient class – initiating a request

The AsyncTCPClient class – canceling the request

The AsyncTCPClient class – closing the client

There's more…

Implementing a multithreaded TCP client application

See also

4. Implementing Server Applications

Introduction

The sample protocol

Implementing a synchronous iterative TCP server

How to do it…

How it works…

The Service class

The Acceptor class

The Server class

The main() entry point function

Eliminating the drawbacks

Stopping a server in reasonable amount of time

Dealing with the server's vulnerability

Analyzing the results

See also

Implementing a synchronous parallel TCP server

How to do it…

How it works…

The Service class

The Acceptor class

The Server class

The main() entry point function

Eliminating the drawbacks

See also

Implementing an asynchronous TCP server

How to do it…

How it works…

The Service class

The Acceptor class

The Server class

The main() entry point function

See also

5. HTTP and SSL/TLS

Introduction

Implementing the HTTP client application

How to do it…

The HTTPResponse class

The HTTPRequest class

The HTTPClient class

The callback and the main() entry point function

How it works…

The HTTPClient class

The HTTPRequest class

The HTTPResponse class

Callback and the main() entry point functions

See also

Implementing the HTTP server application

Getting ready…

How to do it…

How it works…

See also

Adding SSL/TLS support to client applications

Getting ready…

How to do it…

How it works…

The SyncSSLClient class

The main() entry point function

See also

Adding SSL/TLS support to server applications

Getting ready…

How to do it…

How it works…

The Service class

The Acceptor class

See also

6. Other Topics

Introduction

Using composite buffers for scatter/gather operations

Getting ready…

How to do it…

Preparing a composite buffer for gather output operations

Preparing a composite buffer for an input operation

How it works…

See also

Using timers

How to do it…

How it works…

Getting and setting socket options

Getting ready…

How to do it…

How it works…

Performing a stream-based I/O

How to do it…

How it works…

There's more…

Implementing a server-side I/O

Setting timeout intervals

Index

Boost.Asio C++ Network Programming Cookbook

Copyright © 2016 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: January 2016

Production reference: 1190116

Published by Packt Publishing Ltd.

Livery Place

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Birmingham B3 2PB, UK.

ISBN 978-1-78398-654-5

www.packtpub.com

Credits

Author

Dmytro Radchuk

Reviewer

Victor Sigler

Commissioning Editor

Usha Iyer

Acquisition Editors

Shaon Basu

Manish Nainani

Content Development Editor

Samantha Gonsalves

Technical Editor

Madhunikita Sunil Chindarkar

Copy Editors

Trishya Hazare

Rashmi Sawant

Project Coordinator

Kinjal Bari

Proofreader

Safis Editing

Indexer

Hemangini Bari

Production Coordinator

Shantanu N. Zagade

Cover Work

Shantanu N. Zagade

About the Author

Dmytro Radchuk is a software engineer from Kyiv, Ukraine. His passion for science started at a young age and led him to receive a degree in computer science from Kyiv Polytechnic University. As of today, he has deep technical knowledge and more than 8 years of experience in the field of software development for several industries and businesses. He strongly believes that the whole is greater than the sum of its parts and this is one of the reasons why the development of distributed applications has become his main specialization.

Dmytro has always supported the idea of sharing knowledge and this has resulted in Boost.Asio C++ Network Programming Cookbook, which has become his first officially published book. He believes that science will help us deal with the monotony of everyday life. When he is not exploring another facet of computer engineering, he is probably learning a new aspect of psychology, history, or the arts, which are also of great interest to him.

I would like to dedicate this book to my fiancée, Anelia, for all her love and support.

About the Reviewer

Victor Sigler is an iOS software engineer with experience in developing consumer and enterprise mobile applications. He loves everything that is related to Apple and is passionate about Swift and the world of programming contests, where he has spent a long time developing in C++. He enjoys writing about iOS development in his blog at http://www.vsigler.com and also enjoys helping people with their queries on Stack Overflow. He...