share_socket.rb

require "socket"
require "drb"

uri = ARGV.shift

# Socket overwrites send!
class Wrapper
  include DRb::DRbUndumped
  def initialize object
    @object = object
  end
  def method_missing name, *args, &block
    puts ">> #{name}(#{args.collect { |a| a.inspect }.join (",")}) #{"{ ... }" if block_given?}"
    result = @object.method(name).call(*args, &block)
    puts "=> #{result.inspect}"
    result
  end
  def send_data *whatever
    @object.send *whatever
  end
  public "method_missing"
end

module SharedSocket
  def self.open
    method_missing :open
  end
  def self.method_missing *args, &block
    Wrapper.new UDPSocket.send(*args, &block)
  end
end

DRb.start_service uri, SharedSocket
puts uri
sleep

use_socket.rb

require "snmp"

class UDPSocket
 alias send_data send
end

module SNMP
  
  def self.socket_class
    @socket_class ||= UDPSocket
  end
  
  def self.socket_class= value
    @socket_class = value
  end
  
  class UDPTransport
    def initialize
      @socket_class = SNMP.socket_class.open
    end
    
    def send(data, host, port)
      @socket_class.send_data data, 0, host, port
    end
  end

end