How to use containers in lock based concurrency

[crimaniak]

On Friday, 3 November 2017 at 12:42:29 UTC, ANtlord wrote:
> Hello! I can't get how to use double linked list in 
> concurrency. Please help.
...
> I get a compile error onlineapp.d(8): Error: template 
> std.container.dlist.DList!string.DList.insertFront cannot 
> deduce function from argument types !()(string) shared,

One Does Not Simply get the non-shared object and use in the 
shared code. (/Boromir mode)

For me, it was useful to read this: 
http://www.informit.com/articles/article.aspx?p=1609144&seqNum=11