def connect_endpoint(self, remote_name):
t = 0
while t < 999999:
if self.track_dict.get(remote_name):
break
time.sleep(1)
t += 1
if t > 30:
raise Exception(f'{remote_name} not registed')
"""connect to another endpoint"""
acc = 0.5 #TODO: implement sleep "growth"
print(self.track_dict)
connected = False
synned = False
remote_offset = None
my_pub_offset = None
syn_time=0
ack_time=0
self.dat = PunchObject("")
for count in range(550):
print("versuch %s" % count)
r,w,x = select([self.s], [self.s], [], 0)
if w:
r_addr = self.track_dict.get(remote_name)
r_addr = r_addr[0], r_addr[1]
print("addr update",r_addr)
if connected:
print("send msg to", r_addr)
msg = self.dat.compose('MSG', "%s offsetted msg: %s has public offset: %s" % (count, self.session_name, my_pub_offset))
self.send(msg, r_addr)
print('send :', msg)
if not self.dat.SYN and not self.dat.ACK:
msg = self.dat.compose('SYN', "%s %s,%s"%(count, self.session_name, 0) )#SYN mit offset
self.send(msg, r_addr)
print('No:send :', msg)
syn_time = time.time()
if self.dat.SYN:
msg = self.dat.compose('ACK',"%s %s,%s" % \
(count, self.session_name, 0) )
self.send(msg, r_addr)
print('SYNed:send :', msg)
if r:
data,addr=self.recv()
print("data: ", data)
self.dat = PunchObject(data)
if self.dat.MSG:
num_nomsg = 0
print(str(self.dat), ':', addr)
elif self.dat.SYN:
print("recvd SYN ", str(self.dat), ':', addr)
synned = True
elif self.dat.ACK:
ack_time = time.time()-syn_time
print("recvd ACK ", str(self.dat), ack_time, ':', addr)
if synned:
connected = True
print("Connected.", remote_name, ':', addr)
self.p2plist[remote_name] = addr
elif self.dat.JSON:
self.track_dict = json.loads(data[1:])
else:
num_nomsg += 1
time.sleep(acc)
def __init__(self, port):
self.track_dict['this'] = ['localhost', port, 0]
self.p = PunchObject("")
self.s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.s.bind(('0.0.0.0', self.track_dict['this'][1]))
def send_request(self, offset):
self.send("%s,%d" % (self.session_name, offset) , self.env.server_addr())
data,addr=self.recv()
self.dat = PunchObject(data)
if self.dat.JSON:
self.track_dict = json.loads(data[1:])
