def run():
this_loop_runtime = utc_now()
# This loop basically does two things:
for runner in all_runners():
# 1) Let the runners pick up any queued tasks.
result = runner.run()
if not result in (BUSY, IDLE):
# If the runner is neither busy nor idle, it will have returned a Deferred.
result.addCallback(runner.finish_job)
# 2) Queue up new tasks.
for task_string, task in TIEMPO_REGISTRY.items():
### REPLACE with task.next_expiration_dt()
if hasattr(task, 'force_interval'):
expire_key = this_loop_runtime + datetime.timedelta(
seconds=task.force_interval
)
else:
expire_key = task_time_keys().get(task.get_schedule())
#########
if expire_key:
stop_key_has_expired = REDIS.setnx(task.stop_key, 0)
if stop_key_has_expired:
REDIS.expire(
task.stop_key,
int(float((expire_key - this_loop_runtime).total_seconds())) - 1
)
# OK, we're ready to queue up a new job for this task!
task.spawn_job()
