tool/mbed/mbed-sdk/workspace_tools/host_tests/tcpecho_server.py

   1 """
   2 mbed SDK
   3 Copyright (c) 2011-2013 ARM Limited
   4
   5 Licensed under the Apache License, Version 2.0 (the "License");
   6 you may not use this file except in compliance with the License.
   7 You may obtain a copy of the License at
   8
   9     http://www.apache.org/licenses/LICENSE-2.0
  10
  11 Unless required by applicable law or agreed to in writing, software
  12 distributed under the License is distributed on an "AS IS" BASIS,
  13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 See the License for the specific language governing permissions and
  15 limitations under the License.
  16 """
  17 from SocketServer import BaseRequestHandler, TCPServer
  18 from time import time
  19
  20 from private_settings import LOCALHOST
  21
  22 MAX_INDEX = 126
  23 MEGA = float(1024 * 1024)
  24
  25 class TCP_EchoHandler(BaseRequestHandler):
  26     def handle(self):
  27         print "\nconnection received"
  28         start = time()
  29         bytes = 0
  30         index = 0
  31         while True:
  32             data = self.request.recv(1024)
  33             if not data: break
  34
  35             bytes += len(data)
  36             for n in map(ord, data):
  37                 if n != index:
  38                     print "data error %d != %d" % (n , index)
  39                 index += 1
  40                 if index > MAX_INDEX:
  41                     index = 0
  42
  43             self.request.sendall(data)
  44         t = time() - start
  45         b = float(bytes * 8) * 2
  46         print "Throughput: (%.2f)Mbits/s" % ((b/t)/MEGA)
  47
  48 server = TCPServer((LOCALHOST, 7), TCP_EchoHandler)
  49 print "listening for connections"
  50 server.serve_forever()