message: Optimize stream_select timeout
diff: @@ -465,6 +465,9 @@ bool System::socket_poll(std::unordered_map<int, PollSocket> &fds, double timeou
  }
  if (timeout > 0) {
  + if (timeout < 0.001) {
  + timeout = 0.001;
  + }
  task.timer = swoole_timer_add((long) (timeout * 1000), false, socket_poll_timeout, &task);
  }
  