Async & Concurrency

Write responsive, scalable code with tasks, async/await and safe parallelism.

1. 6.1

   Tasks

   • Task & Task<T>
   • Threads vs tasks
   • Tasks and threads— Understand what a Task represents, how it relates to threads, and how to run work concurrently.11 min
2. 6.2

   async / await

   • How await works
   • The state machine
   • Common pitfalls
   • async and await— Write asynchronous code that reads like synchronous code — and understand what await really does.13 min
   • Async pitfalls— The classic async mistakes — blocking, async void, fire-and-forget — and how to avoid them.10 min
3. 6.3

   Cancellation & timeouts

   • CancellationToken
   • Timeouts
   • Cancellation and timeouts— Stop work that's no longer needed with CancellationToken, and put limits on slow operations.11 min
4. 6.4

   Parallelism & thread safety

   • Parallel.ForEach
   • lock
   • Concurrent collections
   • Channels
   • Thread safety and channels— Share data between concurrent operations safely — locks, Interlocked, concurrent collections and channels.13 min