Book Image

Hands-On Parallel Programming with C# 8 and .NET Core 3

By : Shakti Tanwar
Book Image

Hands-On Parallel Programming with C# 8 and .NET Core 3

By: Shakti Tanwar

Overview of this book

In today’s world, every CPU has a multi-core processor. However, unless your application has implemented parallel programming, it will fail to utilize the hardware’s full processing capacity. This book will show you how to write modern software on the optimized and high-performing .NET Core 3 framework using C# 8. Hands-On Parallel Programming with C# 8 and .NET Core 3 covers how to build multithreaded, concurrent, and optimized applications that harness the power of multi-core processors. Once you’ve understood the fundamentals of threading and concurrency, you’ll gain insights into the data structure in .NET Core that supports parallelism. The book will then help you perform asynchronous programming in C# and diagnose and debug parallel code effectively. You’ll also get to grips with the new Kestrel server and understand the difference between the IIS and Kestrel operating models. Finally, you’ll learn best practices such as test-driven development, and run unit tests on your parallel code. By the end of the book, you’ll have developed a deep understanding of the core concepts of concurrency and asynchrony to create responsive applications that are not CPU-intensive.
Table of Contents (22 chapters)
Free Chapter
1
Section 1: Fundamentals of Threading, Multitasking, and Asynchrony
6
Section 2: Data Structures that Support Parallelism in .NET Core
10
Section 3: Asynchronous Programming Using C#
13
Section 4: Debugging, Diagnostics, and Unit Testing for Async Code
16
Section 5: Parallel Programming Feature Additions to .NET Core

Async, Await, and Task-Based Asynchronous Programming Basics

In the previous chapter, we introduced asynchronous programming practices and solutions available in C#, even prior to .NET Core. We also discussed scenarios where asynchronous programming can be handy, and where it should be avoided.

In this chapter, we will dig more deeply into asynchronous programming, and will introduce two keywords that make writing asynchronous code very easy. We will be covering the following topics in this chapter:

  • Introduction to async and await
  • Async delegates and lambda expressions
  • The Task-Based Asynchronous Pattern (TAP)
  • Exception handling in asynchronous code
  • Async with PLINQ
  • Measuring async code performance
  • Guidelines for using async code

Let's start with an introduction to the async and await keywords, which were first introduced in C# 5.0 and adopted in .NET Core as well.

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