Gabriel439/Haskell-Pipes-Concurrency-Library — pull request #19 by urv (2014-01-15 18:45:22+00:00)
Title: feature: added a new buffer type 'LatestOnce'

LatestOnce: Like Latest but the 'Latest' message can be read out of the
mailbox just once. Any other read attempt will block until new messages
arrive - writers should not block.

Maybe a stupid buffer type but most probably a stupid name for the buffer.