import sys, commands
from network_manager_listener import device_now_active, device_no_longer_active


if sys.platform != 'darwin':
	raise ImportError('System platform is not OS X')

net_device_active = True

###
### Utility functions
###

def checkPID(pid, procname):
	out = commands.getstatusoutput("ps -wwp %d" % pid)
	arr = out[1].split("\n")
	if ((len(arr) == 2) and (arr[1].find(procname) >= 0)):
		return True
	return False

import nsapp

def init():
	nsapp.init()
	nsapp.setNetworkCB(netDeviceChanged)
	return


def shutdown():
	import dbus
	dbus.shutdown()
	return


def netDeviceChanged():
	global net_device_active
	if net_device_active:
		net_device_active = False
		device_no_longer_active(None)
	else:
		net_device_active = True
		device_now_active(None)
	return
