def recv(self):
try:
data, server_addr = RDLaser.getClient().recvfrom(RDLaser.BUF_SIZE)
except socket.timeout:
if self.debug:
print u"\x1B[30;48;5;1m TIMEOUT REACHED \x1B[0m"
return (None, None)
if self.debug:
print u"\x1B[44m< " + server_addr[0] + ": " + data.encode(
"HEX") + u"\x1B[0m - " + RDLaser.descramblestr(data).encode(
"HEX")
return (data, server_addr)
def request(self, data):
if not self.send(data):
return None
resp, server_addr = self.recv()
if resp == None:
return None
resp = RDLaser.descramblestr(resp)
if resp[2:4] == data[2:4]:
return resp[4:]
else:
if self.debug:
print u"\x1B[30;48;5;1m MESSAGE CODE MISMATCH %s / %s \x1B[0m" % (
resp[2:4].encode("HEX"), data[2:4].encode("HEX"))
return None
def recv(self):
data, addr = RDLaser.getServer().recvfrom(RDLaser.BUF_SIZE)
if data[:2] != RDLaser.checksum(data[2:])[:2]:
print data[0:2].encode("HEX")
if self.debug:
print(u"\x1B[31mCHECKSUM MISMATCH\x1B[0m")
return ("", addr)
data = RDLaser.descramblestr(data[2:])
if self.debug:
print(u"\x1B[34m< " + addr[0] + ": " +
RDLaser.scramblestr(data).encode("HEX") + u"\x1B[0m - " +
data.encode("HEX"))
self.send(addr[0], '\xcc') #send ACK
return (data, addr)