/
udp_server.py
executable file
·68 lines (55 loc) · 1.41 KB
/
udp_server.py
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#!/usr/bin/env python3
import os
import sys
import time
import socket
udp_port = 6349
length = int(sys.argv[1])
count = int(sys.argv[2])
csv = int(sys.argv[3])
ack = "ACK".encode("utf-8")
stop = "STOP"
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind(('', udp_port))
if not csv:
print("Receiving datagrams of length {} bytes".format(length))
i = 0
b = 0
t0 = 0
t1 = 0
end = False
while True:
try:
for j in range(count):
d, a = s.recvfrom(length)
if d == bytes(stop, 'UTF-8'):
if not t1:
continue
end = True
break
if not t0:
if not csv:
print("Received first datagram", flush=True)
t0 = time.time()
t1 = time.time()
b += len(d)
i += 1
if end:
break
s.sendto(ack, a)
except KeyboardInterrupt:
break
t = t1 - t0
r = round(b*8/1014/t)
if t > 60*60:
time_str = "{}h {:2}m".format(int(t/60/60), int((t/60)%60))
else:
time_str = "{}m {:2}s".format(int(t/60), int(t%60))
if csv:
print("time: {}".format(round(t, 2)))
print("bytes: {}".format(b))
print("packets: {}".format(i))
print("rate: {}".format(r))
else:
print("Received {} datagrams of total length {} kB in {}".format(i, round(b/1024), time_str))
print("Rate: {} kbit/s".format(r))