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

Using ConcurrentStack

In this section, we are going to experiment with BlockingCollection<T> and ConcurrentStack<T>. In the first example in this chapter, we used BlockingCollection<T> to read the words that started with a specific letter from the book Ulysses. We are going to make a copy of that project and change the code that reads the lines of text to use ConcurrentStack<T> inside BlockingCollection<T>. This will make the lines output in reverse order because a stack uses last in, first out (LIFO) logic. Let’s get started!

  1. Make a copy of the ParallelExtras.BlockingCollection project from this chapter or modify the existing project if you prefer.
  2. Open MainWindow.xaml.cs and modify the LoadBookLinesFromFile method to pass a new ConcurrentStack<string> to the constructor of BlockingCollection<string>:
    private async Task<BlockingCollection<string>>