rb: Completely rewrite Thrift::NonblockingServer

It now has a much better and cleaner architecture, a proper persistent thread pool,
a dedicated acceptor thread, and no concurrency issues


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@669012 13f79535-47bb-0310-9956-ffa450edef68
2 files changed