Fibers under the hood

[Nikolay via Digitalmars-d-learn]

On Thursday, 9 June 2016 at 04:57:30 UTC, Jonathan Marler wrote:
> I've googled and searched through the forums but haven't found 
> too much on how fibers are implemented.  How does yield return 
> execution to the caller but then resume execution in the same 
> place on the next call?  Also some information on how the fiber 
> call stack works would be nice.  I'm assuming it allocates the 
> stack on the GC heap.  If so, what is the default size and is 
> that configurable?  Any information or pointers to resources 
> that provide this information would be helpful.  Thanks.

See "Documentation of Fiber internals" inside
https://github.com/dlang/druntime/blob/master/src/core/thread.d