[D-runtime] Fibers and x87/SSE control words?

[Sean Kelly]

On Feb 13, 2012, at 12:26 PM, Martin Nowak wrote:
> 
> Calling Fiber.yield is just returning in an unusual manner. As Fibers
> are not preemptive we shouldn't do that.

I think Fibers can be used in two different ways.  The first is for iteration and such, where the synchronous nature is intended.  The second is within thread pools and such, where the fiber really is a logical thread.  Any ideas for how to resolve the two?