#!/bin/bash
# parameter 1: port

port=$1

i=0
while [ $i -lt 20 ]; do
	check_port 127.0.0.1 $port >/dev/null 2>&1
	ret=$?
	if [ "$ret" == 0 ]; then
		echo "port $port is alive"
		break
	fi
	((i++))
	echo "wait for port $port alive the $i-th time"
	sleep 1
done

if [ $i -ge 20 ]; then
	echo "port $port check alive timeout"
	exit 1
fi