facebook/hhvm — pull request #1594 by ebernhardson (2014-01-19 06:33:08+00:00)
Title: Support for UNIX sockets

Add a new config param, Server.Path. When Server.Path is set
it will be used inplace of a network socket for the primary server.
This uses port == 65535 as a sigil when passing through createServer
to toggle between treating the address as a socket path or a network
address. This is non-optimal, but is a reasonable starting point
for supporting unix sockets.