def connection_validator(): #checks if we lost a connection woth one of the elevators
lost_ids = []
for ID in shared.elevators:
if (ID == shared.get_local_elevator_ID()): #checks the local elevator
continue #can't loose the local elevator
elevator_state = shared.elevators[ID]
if ((time.time() - elevator_state.last_ping) > 4.0): #if we don't hear from a elevator for over 4.0 seconds we have lost it, by shut down or bad internet connection or no internet connection at all
print "Lost elevator with id:", ID, "which is ", (time.time() - elevator_state.last_ping), " seconds old"
lost_ids.append(ID) #puts all the lost elevators ips in one list
for ID in lost_ids:
del shared.elevators[ID] #deletes the lost elevators
for ID in lost_ids: #checks through the lost elevators if we have to reassign some of the orders the lost elevator had
for key in orderlist.get_order_map():
order = orderlist.get_order_map()[key]
if (order.completed): #if the order is completed we shall ont reassign that order
continue
if not (order.assigned): #the order is not given to anyone
continue
if (order.direction == shared.NODIR): #checks if the we have a local command, "BUTTON_COMMANDS"
continue #Can't reassign command orders
if (order.assigned_to_id == ID): #if the assigned ID and the elevator ID is the same
orderlist.assign_order(order) #we reassign the orders
def sending(): #this function sends everything we want to broadcast
last_time = time.time()
while True:
delta_time = time.time() - last_time
last_time = time.time()
if (delta_time > 1.5): #checks if the sending is being stalled
print "Warning, sending thread has stalled!"
#broadcast the functions with 0.3 seconds between them
send_orderlist(orderlist.get_order_map())
time.sleep(0.3)
send_ping(elevator.get_elevators())
time.sleep(0.3)
connection_validator()
time.sleep(0.3)
return
