#UDPHeartbeat.py

from socket import *
import time
import sys

if len(sys.argv) <= 2:
    print '''
Usage : "python UDPHeartbeat.py server_ip server_port"
[server_ip] is the IP Address of the Web Server
[server_port] is the port of the Web Server
'''
    sys.exit(2)	
serverName = sys.argv[1]
serverPort = sys.argv[2]

clientSocket = socket(AF_INET, SOCK_DGRAM)

id=0
while True:
	try:
		time.sleep(3)
		id = id + 1
		start = time.time()
		message = "sequence:%d;time:%s" % (id, start)
		print message
		clientSocket.sendto(message, (serverName, int(serverPort)))
	except KeyboardInterrupt:
		print "\nInterrupted by CTRL-C"
		break	
		
clientSocket.close()