Changing asynchronous processing order with ConcurrentStack

This recipe is a slight modification of the previous one. We will, once again, create a set of tasks to be processed asynchronously by multiple workers, but this time, we implement it with ConcurrentStack and see the differences.

Getting ready

To work 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\Chapter6\Recipe3.

How to do it...

To understand the processing of a set of tasks implemented with ConcurrentStack, 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.Collections.Concurrent;
   using System.Threading;
   using System.Threading.Tasks;
   using static System.Console;

3. Add the following code snippet below the Main method:

   static async Task RunProgram()
   {
     var taskStack = new ConcurrentStack<CustomTask&gt...