def mainLoop(env): """ Main event loop which will process all registerd threads in a loop. It will run as long env.active is set to True.""" global dr # Enable DBus runner dr = DBusRunner() dr.start() log = logging.getLogger(__name__) try: while True: # Load plugins oreg = ObjectRegistry.getInstance() #@UnusedVariable pr = PluginRegistry() #@UnusedVariable cr = PluginRegistry.getInstance("CommandRegistry") amqp = PluginRegistry.getInstance("AMQPHandler") index = PluginRegistry.getInstance("ObjectIndex") wait = 2 notifyInterval = 10 interval = notifyInterval loadAvg = SystemLoad() # Sleep and slice while True: # Threading doesn't seem to work well with python... for p in env.threads: # Bail out if we're active in the meanwhile if not env.active: break # Check if we reached the notification interval interval += wait if interval > notifyInterval: interval = 0 load = loadAvg.getLoad() latency = 0 workers = len(env.threads) log.debug("load %s, latency %s, workers %s" % (load, latency, workers)) e = EventMaker() status = e.Event( e.NodeStatus( e.Id(env.id), e.Load(str(load)), e.Latency(str(latency)), e.Workers(str(workers)), e.Indexed("true" if index.index_active() else "false"), ) ) amqp.sendEvent(status) # Disable potentially dead nodes cr.updateNodes() p.join(wait) # No break, go to main loop else: continue # Leave the thread loop break # Break, leave main loop if not env.reset_requested: break # Wait for threads to shut down for t in env.threads: t.join(wait) if hasattr(t, 'stop'): t.stop() # Lets do an environment reset now PluginRegistry.shutdown() # Make us active and loop from the beginning env.reset_requested = False env.active = True # Catchall, pylint: disable=W0703 except Exception as detail: log.critical("unexpected error in mainLoop") log.exception(detail) except KeyboardInterrupt: log.info("console requested shutdown") finally: shutdown()
def mainLoop(env): global netstate, dr # Enable DBus runner dr = DBusRunner() dr.start() # Do network monitoring nm = Monitor(netactivity) netstate = nm.is_online() """ Main event loop which will process all registerd threads in a loop. It will run as long env.active is set to True.""" try: log = logging.getLogger(__name__) while True: # Check netstate and wait until we're back online if not netstate: log.info("waiting for network connectivity") while not netstate: time.sleep(1) # Load plugins PluginRegistry(component='client.module') # Sleep and slice wait = 2 while True: # Threading doesn't seem to work well with python... for p in env.threads: # Bail out if we're active in the meanwhile if not env.active: break p.join(wait) # No break, go to main loop else: continue # Break, leave main loop break # Break, leave main loop if not env.reset_requested: break # Wait for threads to shut down for t in env.threads: if hasattr(t, 'stop'): t.stop() if hasattr(t, 'cancel'): t.cancel() t.join(wait) #TODO: remove me if t.isAlive(): try: t._Thread__stop() except: print(str(t.getName()) + ' could not be terminated') # Lets do an environment reset now PluginRegistry.shutdown() # Make us active and loop from the beginning env.reset_requested = False env.active = True if not netstate: log.info("waiting for network connectivity") while not netstate: time.sleep(1) sleep = randint(30, 60) env.log.info("waiting %s seconds to try an AMQP connection recovery" % sleep) time.sleep(sleep) except Exception as detail: log.critical("unexpected error in mainLoop") log.exception(detail) log.debug(traceback.format_exc()) except KeyboardInterrupt: log.info("console requested shutdown") finally: shutdown()