class Baton(object):
"""The Conductor's instrument for synchronizing the players.
"""
def log(self, cp):
log_lock.acquire()
import inspect
func_name = inspect.currentframe().f_back.f_code.co_name
print("{} in {} waiting on {}".format(threading.current_thread().name, func_name, cp))
log_lock.release()
def __init__(self, checkpoint_order):
self.player_event = CascadingEventGroup(checkpoint_order, 'player evt.')
self.conductor_event = CascadingEventGroup(checkpoint_order, 'conductor evt')
self.log_lock = threading.Lock()
def wait_for_permission(self, checkpoint):
# self.log(checkpoint)
self.player_event.wait_on(checkpoint)
def yield_permission(self, checkpoint):
# self.log(checkpoint)
self.player_event.done_with(checkpoint)
def wait_acknowledgement(self, checkpoint):
# self.log(checkpoint)
self.conductor_event.wait_on(checkpoint)
def acknowledge_checkpoint(self, checkpoint):
# self.log(checkpoint)
self.conductor_event.done_with(checkpoint)
def __init__(self, checkpoint_order):
self.player_event = CascadingEventGroup(checkpoint_order, 'player evt.')
self.conductor_event = CascadingEventGroup(checkpoint_order, 'conductor evt')
self.log_lock = threading.Lock()
