Multiprocessing simplest example.

discoverLanIps.py

"""
@Author Sujayyendhiren Ramarao
@Description Multiprocessing library example (Synchornization of shared variable)
"""

import nmap
import time

class Discover(object) :
    def __init__(self):
        print "Init Discover"

    def discover_lan(self, lock, share):
        while True:
            lock.acquire()
            share.value = 1
            lock.release()
            print "Master Process: " + str(share.value)

class Cleanup(object) :
    def __init__(self):
        print "Init Cleanup"

    def cleanup_handler(self,lock, share):
        while True:
            lock.acquire()
            share.value = 3
            lock.release()
            print "Cleanup Process: " + str(share.value)
            #time.sleep(2)

class Logging(object):
    def __init__(self):
        print "Init Logging"

    def logging_handler(self, lock, share ):
        while True:
            lock.acquire()
            share.value = 2
            lock.release()
            print "Logging Process: " + str(share.value)

def proc_handler( lock, action, num ):
    print('Process action : ', action)

    if action == 'discover':
        newProcess = Discover()
        newProcess.discover_lan( lock, num )
    elif action == 'cleanup':
        newProcess = Cleanup()
        newProcess.cleanup_handler( lock, num )
    elif action == 'logging':
        newProcess = Logging()
        newProcess.logging_handler( lock, num )
    else:
        pass