zeromq/czmq — pull request #95 by hintjens (2012-11-09 04:24:38+00:00)
Title: Fixed HWM=1 on thread pipes

This design was originally meant to stop runaway applications but
in fact it turns an async API into a sync API, with nasty effects
for applications in some cases. There's no real reason for the
HWM=1 that I can see, so I'm removing it.