def find_nodes():
network.send_multicast_message(
'{"tag":"whois","address":"'+self_ip+'"}',ukey,self_ip)
mutex.acquire()
try:
del nodes[:]
if data:
for d in data:
d = json.loads(d)
if d['tag'] == "info" and d['message'] == "whois":
if nodes:
check = False
for n in nodes:
n = json.loads(n)
if str(d['address']) == str(n['address']):
check = True
break
if not check:
nodes.append(json.dumps(d))
else:
nodes.append(json.dumps(d))
except:
pass
finally:
del data[:]
del console_data[:]
mutex.release()
def place_bid(my_bid):
network.send_multicast_message(
'{"tag":"bid","bid":"' + str(my_bid) + '","address":"' + self_ip +
'"}', ukey, self_ip)
t = threading.Thread(target=network.send_multicast_message,
args=(my_bid, ukey, self_ip))
t.start()
def thread_complex(services, ukey, sender_address):
for s in services:
s += "}"
if s[0] == ",":
s = s[1:]
network.send_multicast_message(s, ukey, sender_address)
time.sleep(3)
def service_path(msg, sock):
if check_service_exists(msg):
del bids[:]
my_bid = random.randint(1, 1000)
timer(my_bid, msg)
network.send_multicast_message(
'{"tag":"bidding","address":"' + self_ip + '"}', ukey, self_ip)
place_bid(my_bid)
return
def thread_timer(my_bid, msg):
TTL = 1
timeout = time.time() + TTL
global stop
while True:
if (time.time() > timeout):
stop = True
network.send_multicast_message(
'{"tag":"timer"}', ukey,
self_ip) #dont delete, cycles bid loop
finish_bidding(my_bid, msg)
break
def finish_bidding(my_bid, msg):
try:
print bids
print "my bid: " + str(my_bid)
print "max: " + max(bids)
if bids and (str(my_bid) >= max(bids)):
print "\tWON"
network.send_multicast_message(
'{"tag":"winner","address":"' + self_ip + '","service":"' +
msg['service'] + '"}', ukey, self_ip)
services.run_service(msg, ukey, self_ip)
else:
print "\tLOST"
except:
pass
# print "finish_bidding failed"
finally:
del bids[:]
network.send_multicast_message(
'{"tag":"waiting","address":"' + self_ip + '"}', ukey, self_ip)
def main():
# try:
mcast_sock = network.start_multicast_receiver(self_ip)
network.send_multicast_message(
'{"tag":"info","message":"starting mcast reciever","address":"' +
self_ip + '"}', ukey, self_ip)
network.send_multicast_message(
'{"tag":"info","message":"starting tcp server","address":"' + self_ip +
'"}', ukey, self_ip)
tcp_sock = network.start_tcp_server(self_ip)
network.send_multicast_message(
'{"tag":"info","message":"waiting for message","address":"' + self_ip +
'"}', ukey, self_ip)
wait_for_message(mcast_sock)
def whois_path():
servs = json.dumps(services.all_services())
network.send_multicast_message(
'{"tag":"info","message":"whois","address":"' + self_ip +
'","services":' + servs + '}', ukey, self_ip)
def complex_send(msg_lst): message = build_complex(msg_lst) network.send_multicast_message(message,ukey,self_ip)
def send_message(message): print message network.send_multicast_message(message,ukey,self_ip)
def handle_ctrl_c(signal, frame):
print "\nSIGNAL: ctrl c"
network.send_multicast_message('{"tag":"stop"}',ukey,self_ip)
network.send_tcp_message(self_ip,"stop")
sys.exit(0)
