From: trevershick@... Date: 2006-03-24T09:13:51+09:00 Subject: Stupid Problem I'm a total newb as you'll find out. But regardless, i have a question. I run the code below: It locks up (doesn't do anything). If i remove the while 1 and 'end' but leave the code between it works perfectly. It must be in how i'm envisioning how the thread works. I'm a java programmer and this seems correct. Create the thread, define it's works then start the thread. The call to start should return and not block. I'm not sure what it's doing when i run the code with the 'while' statement. Thanks for your help. #load "ListenerList.rb" require "socket" class MovingPartsServer def initialize() # do nothing yet #@listeners = ListenerList.new(); # initialize the UDP socket puts " Open Socket" @socket = UDPSocket.open puts "Socket Created : " puts @socket @socket.bind(nil, 10003) puts "bound" end def run() puts "run" @sThread = Thread.new(self) { |server| while 1 puts "in thread" rcv = @socket.recvfrom(64) puts rcv # @listeners.AddListener rcv[0] # puts @listeners end } return @sThread end end puts "Start" server = MovingPartsServer.new; puts "Start Server Thread" sThread = server.run(); puts "start client" UDPSocket.open.send("ad hoc", 0, 'localhost', 10003) puts "end client" sThread.join