Book Image

C++ Reactive Programming

By : Praseed Pai, Peter Abraham
Book Image

C++ Reactive Programming

By: Praseed Pai, Peter Abraham

Overview of this book

Reactive programming is an effective way to build highly responsive applications with an easy-to-maintain code base. This book covers the essential functional reactive concepts that will help you build highly concurrent, event-driven, and asynchronous applications in a simpler and less error-prone way. C++ Reactive Programming begins with a discussion on how event processing was undertaken by different programming systems earlier. After a brisk introduction to modern C++ (C++17), you’ll be taken through language-level concurrency and the lock-free programming model to set the stage for our foray into the Functional Programming model. Following this, you’ll be introduced to RxCpp and its programming model. You’ll be able to gain deep insights into the RxCpp library, which facilitates reactive programming. You’ll learn how to deal with reactive programming using Qt/C++ (for the desktop) and C++ microservices for the Web. By the end of the book, you will be well versed with advanced reactive programming concepts in modern C++ (C++17).
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

A short recap of the characteristics of a reactive system


We now live in a world that warrants increased scalability and rapid response. The concept of reactive programming is a need that has arisen to meet the demands of high availability, scalability, and quick response. As per the reactive manifesto (https://www.reactivemanifesto.org/), reactive systems are:

  • Responsive: The ability (of a system) to complete assigned tasks within a timeframe. Responsiveness also means that the problems are detected quickly, and dealt with effectively. The key point is the consistent behavior of a system. Consistency helps the users to build confidence in the system.
  • Resilient: In the context of changes in behavior, the ability of a system to defend itself from failure is resilience. It is correlated to the responsiveness, as the consistency guarantees error handling as well. Resilience is achieved by the isolation and containment of components subject to error situation and protecting the system from failures...