Async and Parallel Programming in C#

Your C# code awaits, yet the page still hangs, the counter drifts and the cancel button changes nothing. This book gives you the model behind async and parallel code so you can fix those problems for good. You will learn what async and await compile to, where code resumes and what ConfigureAwait does in current versions of .NET, and how to reproduce and remove a sync-over-async deadlock. Chapters cover cancellation and timeouts, WhenAll, WhenAny and WhenEach, bounded Channels with backpressure, Parallel.For, Parallel.ForEachAsync and PLINQ, locks, Interlocked, async streams and tests that never sleep. Every example is a short program that was run on the .NET 9 SDK, and a closing price-sync pipeline ties the pieces together. A Quick Reference adds checklists and a troubleshooting table.