class MM1:
def __init__(self, mu, lambd):
self.mu = mu
self.lambd = lambd
self.average_time = 0
self.leaving_count = 0
self.current_time = 0
self.arrival_time = random.expovariate(lambd)
self.service_start_time = float('inf')
self.leaving_time = float('inf')
self.queue = Queue()
self.device = Device()
def receipt_of_demand(self):
print("Требование поступило", self.current_time, end=" ||| ")
demand = Demand(self.arrival_time)
print("Demand ID:", demand.id)
if self.queue.empty() and not self.device.serves:
self.service_start_time = self.current_time
self.queue.put(demand)
self.arrival_time += random.expovariate(self.lambd)
def service_start(self):
print("Требование начало обслуживаться",
self.current_time,
end=" ||| ")
service_time = random.expovariate(self.mu)
self.leaving_time = self.current_time + service_time
self.device.service_demand(self.queue.get())
self.device.to_occupy()
print("Demand ID:", self.device.demand.id)
self.device.demand.service_start_time = self.current_time
self.service_start_time = float('inf')
def leaving_demand(self):
print("Требование покинуло систему", self.current_time, end=" ||| ")
demand = self.device.get_demand()
print("Demand ID:", demand.id)
self.device.to_free()
demand.set_leaving_time(self.current_time)
self.average_time += demand.leaving_time - demand.arrival_time
self.leaving_count += 1
if not self.queue.empty():
self.service_start_time = self.current_time
self.leaving_time = float('inf')
def main(self, max_time):
while self.current_time < max_time:
self.current_time = min(self.arrival_time, self.service_start_time,
self.leaving_time)
if self.current_time == self.arrival_time:
self.receipt_of_demand()
time.sleep(0.8)
continue
if self.current_time == self.service_start_time:
self.service_start()
time.sleep(0.8)
continue
if self.current_time == self.leaving_time:
self.leaving_demand()
time.sleep(0.8)
continue
print(self.average_time / self.leaving_count)
