class DEBUGGER__::UI_ServerBase

def initialize
  @sock = @sock_for_fork = nil
  @accept_m = Mutex.new
  @accept_cv = ConditionVariable.new
  @client_addr = nil
  @q_msg = nil
  @q_ans = nil
  @unsent_messages = []
  @width = 80
  @repl = true
  @session = nil
end