CACHE - Django signals with timeout / process

gistfile1.py

# -*- coding: utf-8 -*-
import os
import time
from multiprocessing import Process

from django.template.loader import render_to_string
from django.http import HttpRequest
from django.template import RequestContext
from django.contrib.auth.models import User


def project_post_generate_template(sender, **kwargs):
    # 1. check / create an new entrie in dict
    # 2. launch new subprocess
    # 3. kill old process
    # 4. stock process in dict
    ### global var ###
    global nb_call
    global process_tab
    
    ### get object ###
    project = kwargs['instance']
    
    ### nb call ### 
    nb_call +=1
    print nb_call
    
    ### launch new process
    p=Process(target=generate_project_cartridge,kwargs={'project' : project, 'timeout': 3})
    p.start()
    
    if str(project.id) in process_tab:
        ### kill old process
        process_tab[str(project.id)].terminate()
    else:    
        process_tab[str(project.id)] = p
    print process_tab
    #print p.terminate()
  

def generate_project_cartridge(project, timeout = 0):
    if time:
        time.sleep(timeout)
    request = HttpRequest()
    for coworker in project.get_coworkers():
        request.user = coworker
        c = render_to_string('mon/projects/cartridges/cache.html', {"project": project},  RequestContext(request)).encode("utf-8")
        f = open(os.path.join(settings.CACHE_TEMPLATE_PATH, 'projects/dashboard/cache_%s_%s.html' % (project.id, request.user.id)), 'w')
        f.write(c)
        f.close()
    print "Generate project cartridge done"