コード例 #1
0
ファイル: link.py プロジェクト: pauldraper/simulator-demo
	def __transmit(self):
		"""Transmit packet."""
		packet = self.queue.pop()
		log('queue-end %d %d' % (self.id, packet.id))
		
		log('transmit-start %d %d' % (self.id, packet.id))
		self.busy = True
		yield sleep(packet.size / self.bandwidth)
		log('transmit-end %d %d' % (self.id, packet.id))
		
		self.busy = False
		if self.queue:
			simulator.new_thread(self.__transmit())
		
		log('propogate-start %d %d' % (self.id, packet.id))
		yield sleep(self.prop_delay)
		log('propogate-end %d %d' % (self.id, packet.id))
		
		yield self.dest.received(packet)
コード例 #2
0
ファイル: main.py プロジェクト: pauldraper/simulator-demo
		self.rate = rate
		
	def send(self, duration):
		"""Sends random messages for specified duration."""
		stop_time = simulator.scheduler.get_time() + duration
		while stop_time > simulator.scheduler.get_time():
			message = ''.join(random.choice(string.letters) for _ in xrange(self.message_len))
			self.host.send(Packet(self.host.ip, self.dest, message))
			yield sleep(random.expovariate(self.rate))


if __name__ == '__main__':
	"""Main method."""
	# set up network
	host1 = Host('123.0.0.0')
	host2 = Host('101.0.0.0')
	link1 = Link(host1, host2, prop_delay=0.5, bandwidth=1000)
	link2 = Link(host2, host1, prop_delay=0.5, bandwidth=1000)

	# set up usage
	mlen = 128
	usage = .90
	rs1 = RandomSender(host1, host2.ip, message_len=mlen, rate=usage*link1.bandwidth/mlen)
	rs2 = RandomSender(host2, host1.ip, message_len=mlen, rate=usage*link1.bandwidth/mlen)
	
	# run
	simulator.new_thread(rs1.send(duration=10))
	simulator.new_thread(rs2.send(duration=10))
	logger.level = 4
	simulator.run()
コード例 #3
0
ファイル: link.py プロジェクト: pauldraper/simulator-demo
	def enqueue(self, packet):
		"""Called to place this packet in the queue."""
		log('queue-start %d %d' % (self.id, packet.id))
		self.queue.appendleft(packet)
		if not self.busy:
			simulator.new_thread(self.__transmit())