def loop(self, timeout=None, blocking=True):
"""Start the asynchronous IO loop.
- (float) timeout: the timeout passed to the underlying
multiplex syscall (select(), epoll() etc.).
- (bool) blocking: if True poll repeatedly, as long as there
are registered handlers and/or scheduled functions.
If False poll only once and return the timeout of the next
scheduled call (if any, else None).
"""
if not _IOLoop._started_once:
_IOLoop._started_once = True
if not logging.getLogger().handlers:
# If we get to this point it means the user hasn't
# configured logging. We want to log by default so
# we configure logging ourselves so that it will
# print to stderr.
_config_logging()
if blocking:
# localize variable access to minimize overhead
poll = self.poll
socket_map = self.socket_map
tasks = self.sched._tasks
sched_poll = self.sched.poll
if timeout is not None:
#while socket_map:
while self.socket_map:
poll(timeout)
sched_poll()
else:
soonest_timeout = None
#while socket_map:
while self.socket_map:
poll(soonest_timeout)
soonest_timeout = sched_poll()
else:
sched = self.sched
if self.socket_map:
self.poll(timeout)
if sched._tasks:
return sched.poll()
def loop(self, timeout=None, blocking=True):
"""Start the asynchronous IO loop.
- (float) timeout: the timeout passed to the underlying
multiplex syscall (select(), epoll() etc.).
- (bool) blocking: if True poll repeatedly, as long as there
are registered handlers and/or scheduled functions.
If False poll only once and return the timeout of the next
scheduled call (if any, else None).
"""
if not _IOLoop._started_once:
_IOLoop._started_once = True
if not logging.getLogger().handlers:
# If we get to this point it means the user hasn't
# configured logging. We want to log by default so
# we configure logging ourselves so that it will
# print to stderr.
_config_logging()
if blocking:
# localize variable access to minimize overhead
poll = self.poll
socket_map = self.socket_map
tasks = self.sched._tasks
sched_poll = self.sched.poll
if timeout is not None:
#while socket_map:
while self.socket_map:
poll(timeout)
sched_poll()
else:
soonest_timeout = None
#while socket_map:
while self.socket_map:
poll(soonest_timeout)
soonest_timeout = sched_poll()
else:
sched = self.sched
if self.socket_map:
self.poll(timeout)
if sched._tasks:
return sched.poll()