Anders Blomdell / mbed-sdk-tools

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host_tests/udpecho_client.py@13:ab47a20b66f0, 2016-07-14 (annotated)

Committer:
screamer
Date:
Thu Jul 14 20:21:19 2016 +0100
Revision:
13:ab47a20b66f0
Parent:
0:66f3b5499f7f 
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screamer 0:66f3b5499f7f 1 """
screamer 0:66f3b5499f7f 2 mbed SDK
screamer 0:66f3b5499f7f 3 Copyright (c) 2011-2013 ARM Limited
screamer 0:66f3b5499f7f 4
screamer 0:66f3b5499f7f 5 Licensed under the Apache License, Version 2.0 (the "License");
screamer 0:66f3b5499f7f 6 you may not use this file except in compliance with the License.
screamer 0:66f3b5499f7f 7 You may obtain a copy of the License at
screamer 0:66f3b5499f7f 8
screamer 0:66f3b5499f7f 9 http://www.apache.org/licenses/LICENSE-2.0
screamer 0:66f3b5499f7f 10
screamer 0:66f3b5499f7f 11 Unless required by applicable law or agreed to in writing, software
screamer 0:66f3b5499f7f 12 distributed under the License is distributed on an "AS IS" BASIS,
screamer 0:66f3b5499f7f 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
screamer 0:66f3b5499f7f 14 See the License for the specific language governing permissions and
screamer 0:66f3b5499f7f 15 limitations under the License.
screamer 0:66f3b5499f7f 16 """
screamer 0:66f3b5499f7f 17 from socket import socket, AF_INET, SOCK_DGRAM
screamer 0:66f3b5499f7f 18 import string, random
screamer 0:66f3b5499f7f 19 from time import time
screamer 0:66f3b5499f7f 20
screamer 13:ab47a20b66f0 21 from mbed_settings import CLIENT_ADDRESS
screamer 0:66f3b5499f7f 22
screamer 0:66f3b5499f7f 23 ECHO_PORT = 7
screamer 0:66f3b5499f7f 24
screamer 0:66f3b5499f7f 25 LEN_PACKET = 127
screamer 0:66f3b5499f7f 26 N_PACKETS = 5000
screamer 0:66f3b5499f7f 27 TOT_BITS = float(LEN_PACKET * N_PACKETS * 8) * 2
screamer 0:66f3b5499f7f 28 MEGA = float(1024 * 1024)
screamer 0:66f3b5499f7f 29 UPDATE_STEP = (N_PACKETS/10)
screamer 0:66f3b5499f7f 30
screamer 0:66f3b5499f7f 31 class UDP_EchoClient:
screamer 0:66f3b5499f7f 32 s = socket(AF_INET, SOCK_DGRAM)
screamer 0:66f3b5499f7f 33
screamer 0:66f3b5499f7f 34 def __init__(self, host):
screamer 0:66f3b5499f7f 35 self.host = host
screamer 0:66f3b5499f7f 36 self.packet = ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(LEN_PACKET))
screamer 0:66f3b5499f7f 37
screamer 0:66f3b5499f7f 38 def __packet(self):
screamer 0:66f3b5499f7f 39 # Comment out the checks when measuring the throughput
screamer 0:66f3b5499f7f 40 # packet = ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(LEN_PACKET))
screamer 0:66f3b5499f7f 41 UDP_EchoClient.s.sendto(packet, (self.host, ECHO_PORT))
screamer 0:66f3b5499f7f 42 data = UDP_EchoClient.s.recv(LEN_PACKET)
screamer 0:66f3b5499f7f 43 # assert packet == data, "packet error:\n%s\n%s\n" % (packet, data)
screamer 0:66f3b5499f7f 44
screamer 0:66f3b5499f7f 45 def test(self):
screamer 0:66f3b5499f7f 46 start = time()
screamer 0:66f3b5499f7f 47 for i in range(N_PACKETS):
screamer 0:66f3b5499f7f 48 if (i % UPDATE_STEP) == 0: print '%.2f%%' % ((float(i)/float(N_PACKETS)) * 100.)
screamer 0:66f3b5499f7f 49 self.__packet()
screamer 0:66f3b5499f7f 50 t = time() - start
screamer 0:66f3b5499f7f 51 print 'Throughput: (%.2f)Mbits/s' % ((TOT_BITS / t)/MEGA)
screamer 0:66f3b5499f7f 52
screamer 0:66f3b5499f7f 53 while True:
screamer 0:66f3b5499f7f 54 e = UDP_EchoClient(CLIENT_ADDRESS)
screamer 0:66f3b5499f7f 55 e.test()