def process_periodic_calls():
"""Long running thread processing next periodic calls
:return:
"""
while True:
calls_to_process = get_next_periodic_calls()
while not calls_to_process:
calls = api.get_periodic_calls()
now = datetime.datetime.now()
nearest = min([c.execution_time for c in calls])
time_to_sleep = (nearest - now).total_seconds()
time_to_sleep = time_to_sleep if time_to_sleep > 0 else 1
LOG.debug("Sleeping for %s s..." % time_to_sleep)
time.sleep(time_to_sleep)
calls_to_process = get_next_periodic_calls()
for call in calls_to_process:
func = utils.import_class(call.target_method)
arguments = json.loads(call.arguments)
api.update_periodic_call(
call.name,
{
'execution_time': get_next_time(
call.pattern, call.execution_time
),
'processing': True
}
)
SEMAPHORES[call.id].acquire()
t = eventlet.spawn(func, **arguments)
t.link(end_processing, call)
