kazuho/Starlet — pull request #12 by kazeburo (2013-11-25 07:27:25+00:00)
Title: support unix domain socket 

if unix domain socket comes from $ENV{SERVER_STARTER_PORT}, Starlet die with

setsockopt(TCP_NODELAY) failed:Operation not supported on socket Starlet/Server.pm line 110.

This p-r checks socket family before listen it.