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!
- Make a copy of the ParallelExtras.BlockingCollection project from this chapter or modify the existing project if you prefer.
- Open
MainWindow.xaml.csand modify theLoadBookLinesFromFilemethod to pass a newConcurrentStack<string>to the constructor ofBlockingCollection<string>:private async Task<BlockingCollection<string>> LoadBookLinesFromFile() { ...