Idiomatic D using GC as a library writer

[Adam D Ruppe]

On Sunday, 4 December 2022 at 17:53:00 UTC, Adam D Ruppe wrote:
> Interesting... you know, maybe D's GC should formally expose a 
> mutex that you can synchronize on for when it is running.

.......... or compile in write barriers. then it doesn't matter 
if the thread is unregistered, the write barrier will protect it 
as-needed!