Book Image

Boost.Asio C++ Network Programming Cookbook

By : Dmytro Radchuk
Book Image

Boost.Asio C++ Network Programming Cookbook

By: Dmytro Radchuk

Overview of this book

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.

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Boost.Asio C++ Network Programming Cookbook
Dmytro Radchuk
Jan, 2016 | 248 pages
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Table of Contents (13 chapters)
Boost.Asio C++ Network Programming Cookbook
Boost.Asio C++ Network Programming Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
The Basics
The Basics
Introduction
Creating an endpoint
Creating an active socket
Creating a passive socket
Resolving a DNS name
Binding a socket to an endpoint
Connecting a socket
Accepting connections
2
I/O Operations
I/O Operations
Introduction
Using fixed length I/O buffers
Using extensible stream-oriented I/O buffers
Writing to a TCP socket synchronously
Reading from a TCP socket synchronously
Writing to a TCP socket asynchronously
Reading from a TCP socket asynchronously
Canceling asynchronous operations
Shutting down and closing a socket
3
Implementing Client Applications
Implementing Client Applications
Introduction
Implementing a synchronous TCP client
Implementing a synchronous UDP client
Implementing an asynchronous TCP client
4
Implementing Server Applications
Implementing Server Applications
Introduction
Implementing a synchronous iterative TCP server
Implementing a synchronous parallel TCP server
Implementing an asynchronous TCP server
5
HTTP and SSL/TLS
HTTP and SSL/TLS
Introduction
Implementing the HTTP client application
Implementing the HTTP server application
Adding SSL/TLS support to client applications
Adding SSL/TLS support to server applications
6
Other Topics
Other Topics
Introduction
Using composite buffers for scatter/gather operations
Using timers
Getting and setting socket options
Performing a stream-based I/O
Index
Index

Implementing the HTTP client application

HTTP clients constitute important class of distributed software and are represented by many applications. Web browsers are prominent representatives of this class. They use HTTP protocols to request web pages from web servers. However, today HTTP protocol is used not only in the web. Many distributed applications use this protocol to exchange custom data of any kind. Often, when designing a distributed application, choosing HTTP as a communication protocol is a much better idea than developing custom one.

In this recipe, we will consider an implementation of HTTP client using Boost.Asio that satisfies the following basic requirements:

  • Supports the HTTP GET request method

  • Executes requests asynchronously

  • Supports request canceling

Let's move on to the implementation.

How to do it…

Because one of the requirements of our client application is to support canceling requests that have been initiated but have not been completed yet, we need to make sure that canceling...

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