igrigorik/em-synchrony — pull request #140 by ibc (2012-09-08 14:33:42+00:00)
Title: EM.synchrony refactorized

`EM.synchrony` refactorized. Faster since it does not invoke `EM.run` if EM is already running and, over all, it uses `{ yield }` syntax in case a block is given which is ~10 times faster.