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| from mininet.topo import Topo | |
| from mininet.net import Mininet | |
| from mininet.util import dumpNodeConnections, pmonitor | |
| from mininet.log import setLogLevel | |
| from mininet.node import Controller, OVSSwitch | |
| #from mininet.node import OVSController | |
| from signal import SIGINT | |
| import math | |
| import random | |
| import time | |
| import threading | |
| time_reached = False | |
| def thread_client(popens, client, args): | |
| while not time_reached: | |
| popens[client] = client.popen(args) | |
| time.sleep(9) | |
| popens[client].send_signal(SIGINT) | |
| def runExperiment( | |
| policy, | |
| port, | |
| device_id, | |
| level, | |
| ): | |
| '''Run experiments with n clients and m servers''' | |
| global time_reached | |
| #controller = RemoteController() | |
| topo = NetworkTopology() | |
| net = Mininet(topo, switch=OVSSwitch) | |
| net.start() | |
| # Get hosts | |
| hosts = net.hosts | |
| # Separate hosts into clients and servers | |
| clients = [] | |
| servers = {} | |
| i = 0 | |
| for host in hosts: | |
| # If its a server add to server list | |
| # else add to client list | |
| if 'server' in host.name: | |
| servers[host] = str(int(port)+i) | |
| i += 1 | |
| else: | |
| clients.append(host) | |
| popens = {} | |
| for server in servers: | |
| popens[server] = \ | |
| server.popen('java -jar server.jar ' + port + ' ' + policy) | |
| time.sleep(15) # Wait 10 seconds for servers to start | |
| client_threads = {} | |
| for client in clients: | |
| # Get random server from servers list | |
| server = random.choice(servers.items()) | |
| args = 'java -jar client.jar ' + str(server[0].IP()) + ' ' + server[1] + ' report ' + device_id + ' ' + level | |
| client_threads[client] = threading.Thread(target=thread_client, args=(popens, client, args))#, daemon=True) | |
| for threads in client_threads.values(): | |
| threads.start(); | |
| time.sleep(10) | |
| time_reached = True | |
| for threads in client_threads.values(): | |
| threads.join() | |
| #endTime = time.time() + 10 # Run for 60 seconds | |
| for (h, line) in pmonitor(popens):#, timeoutms=500): | |
| if h: | |
| with open('times.txt', 'a') as myfile: | |
| myfile.write(line) | |
| # | |
| # if time.time() >= endTime: | |
| # for p in popens.values(): | |
| # p.send_signal(SIGINT) | |
| net.stop() | |
| # network with n hosts connected to one switch | |
| class NetworkTopology(Topo): | |
| clients = 10 | |
| servers = 1 | |
| def __init__(self): | |
| # Initialize topology | |
| Topo.__init__(self) | |
| switch = self.addSwitch('s1') | |
| for s in range(self.servers): | |
| server = self.addHost('server%s' % (s + 1)) | |
| self.addLink(server, switch) | |
| for c in range(self.clients): | |
| client = self.addHost('client%s' % (c + 1)) | |
| self.addLink(client, switch) | |
| topos = {'mytopo': lambda : NetworkTopology()} | |
| if __name__ == '__main__': | |
| setLogLevel('info') | |
| policy = 'RBIBA' | |
| port = '4320' | |
| device_id = '0000acd2-65af-4931-8d62-cf9705e451ff' | |
| level = '2' | |
| runExperiment(policy, port, device_id, level) |
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