Re: Proposal: Tidy up and export PSQ from base

On Sat, Apr 30, 2011 at 3:10 AM, Edward Z. Yang wrote:

The new IO event manager implements a priority search queue internally. This is a kind of handy data structure; in particular, some algorithmic improvements in Hoopl would require a decent priority queue implementation. I propose that we move GHC.Event.PSQ to Data.PSQ, cleaning up the dependency on GHC.Event.Unique, and export it unconditionally (right now it is only available on non-Windows.)

I just wanted to note that the PSQ was made monomorphic for performance reasons (about a 30% improvement) and I be hesitant to use a more generic version in the event manager unless it performs close to the current implementation. Johan