From: matz@... (Yukihiro Matsumoto)
Date: 2003-05-02T11:24:35+09:00
Subject: Re: Errno::EPIPE being caused by $DEBUG

Hi,

In message "Errno::EPIPE being caused by $DEBUG"
    on 03/05/02, Daniel Berger <djberge@qwest.com> writes:

|I noticed that when I run a TCPServer in debug mode, I hit Errno::EPIPE
|errors.  Here are a couple quick scripts you can verify with - just
|start the server in one terminal (with -d), then run the client in
|another:

tcpclient.rb wrote 200 packets, and read 100 times then close the
socket, so that the connection lost, EPIPE raised.

Then without '-d' unhandled exception terminated the socket, but with
'-d' uncaught exception terminates the whole interpreter for debugging
purpose.   The solution should be 

  # tcpserv.rb
  require "socket"
  t = TCPServer.new("localhost",8888)
  addr = t.addr
  addr.shift

  while true
     Thread.start(t.accept) do |s|
      begin
        while x = s.gets
          puts "Got: " + x
          s.puts(x)
        end
      rescue
        # catch all exceptions; do nothing
      ensure
        s.close
      end
    end
  end

							matz.