Is there a fiber api in .net?

Out of more curiosity than anyth开发者_高级运维ing I've been looking for a set of C#/.net classes to support fibers/co-routines (the win32 version) and haven't had any luck.

Does anybody know of such a beast?

No. There isn't a Fiber API in the Framework. I suspect this is because there is little advantage to using them - even the fiber API page (native) mentions:

In general, fibers do not provide advantages over a well-designed multithreaded application.

.NET makes it so much easier to develop a "well-designed" multithreaded application that I suspect there is little use for a fiber API.

Have you seen this:

Title "Implementing Coroutines for .NET by Wrapping the Unmanaged Fiber API"
in the September 2003 issue of MSDN Magazine

http://msdn.microsoft.com/en-us/magazine/cc164086.aspx

If I remember correctly, there was one in the .NET 2 beta, but it was dropped. Eric Lippert wrote about fibers and continuations and said they chose the smallest necessary (link).

There are ways to use iterators and yield to make a coroutine system, see this link. And another one from Joe Duffy.