def finish_task(self, task): try: conn.lrem(self.processing.format(self.name), task, 1) conn.rpush(self.dones.format(self.name), task) conn.set(self.updated_at.format(self.name), time.mktime(time.gmtime())) except: pass
def add_tasks(self, *tasktuples): if tasktuples: tasks = [ pack((caller, args, kwargs)) for caller, args, kwargs in tasktuples ] conn.rpush(self.tasks.format(self.name), *tasks)
def work(self): time.sleep(random.random()) while True: task = None # check status, sleep longer if not processing, break if finished status = self.status() #print self.name, status if status == 'F': break elif status in ['?']: time.sleep(random.randint(15, 30)) continue try: if self.max_workers is not None and \ conn.llen(self.processing.format(self.name)) >= self.max_workers: time.sleep(1) continue result = conn.lpop(self.tasks.format(self.name)) if result is None: time.sleep(3) continue task = result caller, args, kwargs = unpack(task) conn.rpush(self.processing.format(self.name), task) conn.set(self.updated_at.format(self.name), time.mktime(time.gmtime())) print('work on {}, {}, {}'.format(caller, args[:5], kwargs)) if '.' in caller: module, method = caller.rsplit('.', 1) module = __import__(module, fromlist=[method]) caller = getattr(module, method) else: method = caller caller = sys.modules['__builtin__'].__dict__[method] except: print("can't obtain caller, locals: {}".format(locals())) traceback.print_exc() if task is not None: self.finish_task(task) continue try: caller(*args, **kwargs) except: traceback.print_exc() finally: self.finish_task(task)
def check_zombie(self): try: updated_at = conn.get(self.updated_at.format(self.name)) if updated_at: updated_at = float(updated_at) if (time.mktime(time.gmtime()) - updated_at) > 600: while True: task = conn.lpop(self.processing.format(self.name)) if task is None: break conn.rpush(self.dones.format(self.name), task) except: pass
def add_task(self, caller, *args, **kwargs): print caller, args[:5], kwargs conn.rpush(self.tasks.format(self.name), pack((caller, args, kwargs)))