Book Image

Parallel Programming and Concurrency with C# 10 and .NET 6

By : Alvin Ashcraft
Book Image

Parallel Programming and Concurrency with C# 10 and .NET 6

By: Alvin Ashcraft

Overview of this book

.NET has included managed threading capabilities since the beginning, but early techniques had inherent risks: memory leaks, thread synchronization issues, and deadlocks. This book will help you avoid those pitfalls and leverage the modern constructs available in .NET 6 and C# 10, while providing recommendations on patterns and best practices for parallelism and concurrency. Parallel, concurrent, and asynchronous programming are part of every .NET application today, and it becomes imperative for modern developers to understand how to effectively use these techniques. This book will teach intermediate-level .NET developers how to make their applications faster and more responsive with parallel programming and concurrency in .NET and C# with practical examples. The book starts with the essentials of multi-threaded .NET development and explores how the language and framework constructs have evolved along with .NET. You will later get to grips with the different options available today in .NET 6, followed by insights into best practices, debugging, and unit testing. By the end of this book, you will have a deep understanding of why, when, and how to employ parallelism and concurrency in any .NET application.
Table of Contents (18 chapters)
Part 1:Introduction to Threading in .NET
Part 2: Parallel Programming and Concurrency with C#
Part 3: Advanced Concurrency Concepts

Unit testing concurrent code

In this section, we will adapt a sample from Chapter 9, to add unit test coverage. When your code uses async and await, adding reliable test coverage is very simple. At the end of the example, we will examine an alternative method of waiting to perform your assertions by using the SpinLock struct.

Let’s create an unit test project for the ConcurrentOrderQueue project and add several tests:

  1. Start by copying the ConcurrentOrderQueue project from Chapter 9. You can get the source code from the GitHub repository if you do not already have a copy of it:
  2. Open the ConcurrentOrderQueue solution in Visual Studio.
  3. Right-click the solution file in Solution Explorer and click on Add | New Project. Add an xUnit Unit Test project named ConcurrentOrderQueue.Tests. Make sure to add the new project...