How to limit the amount of concurrent async I/O operations?

Question

// let\'s say there is a list of 1000+ URLs
string[] urls = { \"http://google.com\", \"http://yahoo.com\", ... };

// now let\'s send HTTP requests to each of these          


        

Answer 1

Unfortunately, the .NET Framework is missing most important combinators for orchestrating parallel async tasks. There is no such thing built-in.

Look at the AsyncSemaphore class built by the most respectable Stephen Toub. What you want is called a semaphore, and you need an async version of it.