def exec_async(self, *args, **kwargs):
if self.task_id:
task_id = self.task_id
else:
task_id = uuid1()
print self.func
args_json = json.dumps(getcallargs(self.func, *args, **kwargs), indent=2)
redis = create_redis_connection(self.redis_connection)
task_hash_key = get_task_hash_key(task_id)
pending_list_key = get_pending_list_key(self.queue)
results_channel_key = get_results_channel_key()
pubsub = redis.pubsub(ignore_subscribe_messages=True)
pubsub.subscribe(results_channel_key)
pipe = redis.pipeline(transaction=True)
pipe.lpush(pending_list_key, task_id)
print self.virtual_memory_limit
pipe.hmset(task_hash_key,
{TASK_HKEY_FUNCTION: self.func.__name__,
TASK_HKEY_ARGS: args_json,
TASK_HKEY_STATE: STATE_PENDING,
TASK_HKEY_USERNAME: self.username,
TASK_HKEY_PENDING_CREATED: json.strftime(datetime.utcnow()),
TASK_HKEY_VIRTUAL_MEMORY_LIMIT: self.virtual_memory_limit})
pipe.execute()
return AsyncResult(redis, pubsub, task_hash_key, task_id)
def _get_next_task_id(redis, queue, timeout=1):
return redis.brpoplpush(get_pending_list_key(queue),
get_executing_list_key(queue),
timeout=timeout)