vanish (TokyoTyrant::RDB)

    # File tokyotyrant.rb, line 693
        def vanish()
          if !@sock
            @ecode = EINVALID
            return false
          end
          sbuf = [0xC8, 0x72].pack("CC")
          if !_send(sbuf)
            @ecode = ESEND
            return false
          end
          code = _recvcode
          if code == -1
            @ecode = ERECV
            return false
          end
          if code != 0
            @ecode = EMISC
            return false
          end
          return true
        end