Condition variables?

[downs]

David Brown wrote:
> Hopefully I'm missing something obvious here, but D and phobos seem to
> be missing any kind of condition variables.  It's really hard to do
> non-trivial thread programming without this kind of synchronization.
:snip:
> David Brown

What does one need condition variables for?
I'm honestly curious. I've written a few multithreaded programs in D
and, so far, haven't needed them :)

 --downs