def main(args):
#args = [[my user ID, the number of nodes]]. For the time being, we're not passing around node IDs but eventually we WILL need everyone to know all the node ids.
print "Starting up..."
global username, num_nodes, fault_bound
username = args[0]
MessageHandler.init(username, "node")
num_nodes = int(args[1])
fault_bound = num_nodes // 3 - 1 if num_nodes % 3 == 0 else num_nodes // 3 #t < n/3. Not <=.
print "Maximum adversarial nodes: {}/{}.".format(fault_bound, num_nodes)
print "I'm an adversary! Class: POTATO (does nothing)"
weSaidNoMessages = False
while True:
#print "Checking for messages."
message_counter = 0
message = MessageHandler.receive_next()
while message is not None:
message_counter += 1
message = MessageHandler.receive_next()
if message_counter > 0:
print "{} messages received, but I am merely a potato.".format(
message_counter)
message_counter = 0
sleep(1)
def main(args):
#args = [[my user ID, the number of nodes]]. For the time being, we're not passing around node IDs but eventually we WILL need everyone to know all the node ids.
print "Starting up..."
global username, num_nodes, fault_bound
username = args[0]
MessageHandler.init(username, "node")
num_nodes = int(args[1])
fault_bound = num_nodes // 3 - 1 if num_nodes % 3 == 0 else num_nodes // 3 #t < n/3. Not <=.
print "Maximum adversarial nodes: {}/{}.".format(fault_bound, num_nodes)
print "I'm an adversary! Class: GOLDFISH (immediately forgets about received echo/ready messages)"
weSaidNoMessages = False
while True:
#print "Checking for messages."
message = MessageHandler.receive_next()
if message is None:
if not weSaidNoMessages: #only say 'nobody home' once until we receive messages again.
print "No messages."
weSaidNoMessages = True
sleep(1) #wait a second before we check again.
else:
weSaidNoMessages = False
#print message.headers
#print message.body
type = message.headers['type']
msgBody = message.decode()
if type == "client":
#TODO - client messages.
code = msgBody[0]
if code == "broadcast":
print "Client message received: broadcast {}.".format(
repr(msgBody[1]))
ReliableBroadcast.broadcast(msgBody[1])
else:
print "Unknown client message received - code: {}.".format(
msgBody[0])
print message.headers
print message.body
pass #no other types of client messages implemented yet.
elif type == "node":
msgType = msgBody[0]
if msgType == "rBroadcast":
result = ReliableBroadcast.handleRBroadcast(message)
if result is not None:
#result from Accept. Do stuff.
print "Accepted message: " + repr(result)
else:
print "Unknown node message received."
print message.headers
print message.body
pass #TODO: throw error on junk message. Or just drop it.
elif type == "announce":
#announce to client - IGNORE
pass
else:
print "Unknown message received."
print message.headers
print message.body
pass #malformed headers! Throw an error? Drop? Request resend?