Example - bank, 3 clerks (data components).py

# Example - bank, 3 clerks (data components).py
import salabim as sim


class CustomerGenerator(sim.Component):
    def process(self):
        while True:
            Customer().enter(waitingline)
            for clerk in clerks:
                if clerk.ispassive():
                    clerk.activate()
                    break  # activate only one clerk
            yield self.hold(sim.Uniform(5, 15).sample())


class Customer(sim.Component):
    pass


class Clerk(sim.Component):
    def process(self):
        while True:
            while len(waitingline) == 0:
                yield self.passivate()
            waitingline.pop()
            yield self.hold(30)


env = sim.Environment(trace=False)
CustomerGenerator(name='customergenerator')
clerks = sim.Queue('clerks')
for i in range(3):
    Clerk().enter(clerks)
waitingline = sim.Queue('waitingline')

env.run(till=50000)
waitingline.print_statistics()