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Multithreading with C# Cookbook, Second Edition

You're reading from   Multithreading with C# Cookbook, Second Edition Quick answers to common problems

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Product type Paperback
Published in Apr 2016
Publisher
ISBN-13 9781785881251
Length 264 pages
Edition 2nd Edition
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Author (1):
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Evgenii Agafonov Evgenii Agafonov
Author Profile Icon Evgenii Agafonov
Evgenii Agafonov
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Toc

Table of Contents (13) Chapters Close

Preface 1. Threading Basics FREE CHAPTER 2. Thread Synchronization 3. Using a Thread Pool 4. Using the Task Parallel Library 5. Using C# 6.0 6. Using Concurrent Collections 7. Using PLINQ 8. Reactive Extensions 9. Using Asynchronous I/O 10. Parallel Programming Patterns 11. There's More Index

Working with files asynchronously


This recipe walks us through how to create a file and how to read and write data asynchronously.

Getting ready

To step through this recipe, you will need Visual Studio 2015. There are no other prerequisites. The source code for this recipe can be found at BookSamples\Chapter9\Recipe1.

How to do it...

To understand how to work with files asynchronously, perform the following steps:

  1. Start Visual Studio 2015. Create a new C# console application project.

  2. In the Program.cs file, add the following using directives:

    using System;
    using System.IO;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using static System.Console;
    using static System.Text.Encoding;
  3. Add the following code snippet below the Main method:

    const int BUFFER_SIZE = 4096;
    
    static async Task ProcessAsynchronousIO()
    {
      using (var stream = new FileStream(
        "test1.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.None, BUFFER_SIZE))
      {
        WriteLine($"1. Uses I/O Threads: {stream...
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