Implementing multithreading policy templates in D?

[Brian Price]

downs Wrote:

> Brian Price wrote:
> > Greetings,
> > 
> > While implementing a design I ran into a need for multiple implementations with different threading policies.  It looked to me as if porting Loki's Threading Model policies over to D would be just the ticket.  Unfortunately there's no mutex-like class in Phobos that I can find and Object's monitor is not exposed so no way to acquire/release on it other than through synchronized.  
> > 
<<---- snip ---- >>
> > 
> > Having used about every 'mainstream' language over the past twenty odd years, I figure either I'm missing something huge and need to learn an entirely new approach or there's something missing from the standard library.  So I'm left with three questions:
> > 
> > Did I miss something in the docs/std lib code?
> > 
> > Is there a way to implement flexible threading policies using synchronized statements?
> > 
> > What are the chances we'll see Object sporting wait/notify methods or lock/unlock methods in a future release?
> > 
> > Thanks,
> > Brian
> 
> Scrapple.Tools.Threads implements the most important threading primitives on Win32 and Posix.
> 
> http://dsource.org/projects/scrapple/browser/trunk/tools/tools/threads.d
> 
>  --downs

Thanks, it looks good, does it compile & run under D 2.014?  

For the moment I'm using the simple hack: 	
extern (C) void _d_monitorenter(Object obj);
extern (C) void _d_monitorexit(Object obj);
for a basic acquire/release mutex, but as my needs expand I want to avoid reinventing the wheel.

I'd be a lot more comfortable though if the powers that be would expose those two functions as methods on Object.

Brian