message: defense code
diff: @@ -1289,7 +1289,7 @@ static int swClient_onStreamRead(swReactor *reactor, swEvent *event)
  }
  else
  {
  - if (cli->remove_delay)
  + if (conn->removed == 0 && cli->remove_delay)
  {
  swClient_sleep(cli);
  cli->remove_delay = 0;
  