#!/usr/bin/env python

import sys,time

from socket import socket

def read_interface(in_file):

   with file(in_file) as f:

       return f.readlines()[2:]

def set_interface(inter_msg):

   dic={}

   for i in xrange(len(inter_msg)):

       dic[inter_msg[i].split(":")[0].strip()]={"in":inter_msg[i].split(":")[1].strip().split()[0],"out":inter_msg[i].split(":")[1].strip().split()[8]}

   return dic

CARBON_SERVER = ‘127.0.0.1‘

CARBON_PORT = 2003

delay = 3

sock = socket()

try:

   sock.connect( (CARBON_SERVER,CARBON_PORT) )

except:

   print "Couldn‘t connect to %(server)s on port %(port)d, is carbon-agent.py running?" % { ‘server‘:CARBON_SERVER, ‘port‘:CARBON_PORT }

   sys.exit(1)

while True:

   now = int( time.time() )

   lines=[]

   int1=read_interface("/proc/net/dev")

   inter_dic1=set_interface(int1)

   time.sleep(1)

   int2=read_interface("/proc/net/dev")

   inter_dic2=set_interface(int2)

   print int(inter_dic2[inter_dic2.keys()[1]]["in"]),int(inter_dic1[inter_dic1.keys()[1]]["in"])

   for i in xrange(len(inter_dic1.keys())):

       lines.append("interface.%s_in %s %d" % (inter_dic1.keys()[i],int(inter_dic2[inter_dic2.keys()[i]]["in"])-int(inter_dic1[inter_dic1.keys()[i]]["in"]),now))

       lines.append("interface.%s_out %s %d" % (inter_dic1.keys()[i],int(inter_dic2[inter_dic2.keys()[i]]["out"])-int(inter_dic1[inter_dic1.keys()[i]]["out"]),now))

   message = ‘\n‘.join(lines) + ‘\n‘

   print "sending message\n"

   print ‘-‘ * 80

   print message

   sock.sendall(message)

   time.sleep(delay)