From: "Iñaki Baz Castillo" <ibc@...>
Date: 2010-01-12T19:43:13+09:00
Subject: How to close a TCP socket? (TCPSocket#close doesn't close it)

Hi, perhaps I miss something but when I close a TCP connection using 
TCPSocket#close the connection remains as OS level for long seconds (minutes).

Be reading the doc:

  IO#close

  Closes ios and flushes any pending writes to the operating system. The
  stream is unavailable for any further data operations; an IOError is raised
  if such an attempt is made. I/O streams are automatically closed when they
  are claimed by the garbage collector.

So, does it mean that the TCP connection is *really* terminated when the 
garbage collector removes it (some seconds/minutes after calling 
TCPSocket#close)?

Unfortunatelly it's not valid for me, I need the capability to close a TCP 
connection and open a new one without mantaining two parallel connections.

Any other way to really close a TCP connection at OS level? Thanks.

-- 
Iñaki Baz Castillo <ibc@aliax.net>