Marco Mayer / Mbed OS Queue

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mbed-os/tools/host_tests/udpecho_client_auto.py@0:6bf0743ece18, 2020-03-28 (annotated)

Committer:
demayer
Date:
Sat Mar 28 15:28:19 2020 +0000
Revision:
0:6bf0743ece18
IMU Thread with an event-queue running parallel to handle tasks like a 5 times blinking LED. Button with interrupt detected.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
demayer 0:6bf0743ece18 1 """
demayer 0:6bf0743ece18 2 mbed SDK
demayer 0:6bf0743ece18 3 Copyright (c) 2011-2013 ARM Limited
demayer 0:6bf0743ece18 4
demayer 0:6bf0743ece18 5 Licensed under the Apache License, Version 2.0 (the "License");
demayer 0:6bf0743ece18 6 you may not use this file except in compliance with the License.
demayer 0:6bf0743ece18 7 You may obtain a copy of the License at
demayer 0:6bf0743ece18 8
demayer 0:6bf0743ece18 9 http://www.apache.org/licenses/LICENSE-2.0
demayer 0:6bf0743ece18 10
demayer 0:6bf0743ece18 11 Unless required by applicable law or agreed to in writing, software
demayer 0:6bf0743ece18 12 distributed under the License is distributed on an "AS IS" BASIS,
demayer 0:6bf0743ece18 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
demayer 0:6bf0743ece18 14 See the License for the specific language governing permissions and
demayer 0:6bf0743ece18 15 limitations under the License.
demayer 0:6bf0743ece18 16 """
demayer 0:6bf0743ece18 17
demayer 0:6bf0743ece18 18 import sys
demayer 0:6bf0743ece18 19 import socket
demayer 0:6bf0743ece18 20 from sys import stdout
demayer 0:6bf0743ece18 21 from SocketServer import BaseRequestHandler, UDPServer
demayer 0:6bf0743ece18 22
demayer 0:6bf0743ece18 23 class UDPEchoClient_Handler(BaseRequestHandler):
demayer 0:6bf0743ece18 24 def handle(self):
demayer 0:6bf0743ece18 25 """ One handle per connection
demayer 0:6bf0743ece18 26 """
demayer 0:6bf0743ece18 27 data, socket = self.request
demayer 0:6bf0743ece18 28 socket.sendto(data, self.client_address)
demayer 0:6bf0743ece18 29 if '{{end}}' in data:
demayer 0:6bf0743ece18 30 print
demayer 0:6bf0743ece18 31 print data
demayer 0:6bf0743ece18 32 else:
demayer 0:6bf0743ece18 33 sys.stdout.write('.')
demayer 0:6bf0743ece18 34 stdout.flush()
demayer 0:6bf0743ece18 35
demayer 0:6bf0743ece18 36 class UDPEchoClientTest():
demayer 0:6bf0743ece18 37
demayer 0:6bf0743ece18 38 def send_server_ip_port(self, selftest, ip_address, port_no):
demayer 0:6bf0743ece18 39 c = selftest.mbed.serial_readline() # 'UDPCllient waiting for server IP and port...'
demayer 0:6bf0743ece18 40 if c is None:
demayer 0:6bf0743ece18 41 selftest.print_result(selftest.RESULT_IO_SERIAL)
demayer 0:6bf0743ece18 42 return
demayer 0:6bf0743ece18 43 selftest.notify(c.strip())
demayer 0:6bf0743ece18 44
demayer 0:6bf0743ece18 45 selftest.notify("HOST: Sending server IP Address to target...")
demayer 0:6bf0743ece18 46 connection_str = ip_address + ":" + str(port_no) + "\n"
demayer 0:6bf0743ece18 47 selftest.mbed.serial_write(connection_str)
demayer 0:6bf0743ece18 48
demayer 0:6bf0743ece18 49 c = selftest.mbed.serial_readline() # 'UDPCllient waiting for server IP and port...'
demayer 0:6bf0743ece18 50 if c is None:
demayer 0:6bf0743ece18 51 self.print_result(selftest.RESULT_IO_SERIAL)
demayer 0:6bf0743ece18 52 return
demayer 0:6bf0743ece18 53 selftest.notify(c.strip())
demayer 0:6bf0743ece18 54 return selftest.RESULT_PASSIVE
demayer 0:6bf0743ece18 55
demayer 0:6bf0743ece18 56 def test(self, selftest):
demayer 0:6bf0743ece18 57 # We need to discover SERVEP_IP and set up SERVER_PORT
demayer 0:6bf0743ece18 58 # Note: Port 7 is Echo Protocol:
demayer 0:6bf0743ece18 59 #
demayer 0:6bf0743ece18 60 # Port number rationale:
demayer 0:6bf0743ece18 61 #
demayer 0:6bf0743ece18 62 # The Echo Protocol is a service in the Internet Protocol Suite defined
demayer 0:6bf0743ece18 63 # in RFC 862. It was originally proposed for testing and measurement
demayer 0:6bf0743ece18 64 # of round-trip times[citation needed] in IP networks.
demayer 0:6bf0743ece18 65 #
demayer 0:6bf0743ece18 66 # A host may connect to a server that supports the Echo Protocol using
demayer 0:6bf0743ece18 67 # the Transmission Control Protocol (TCP) or the User Datagram Protocol
demayer 0:6bf0743ece18 68 # (UDP) on the well-known port number 7. The server sends back an
demayer 0:6bf0743ece18 69 # identical copy of the data it received.
demayer 0:6bf0743ece18 70 SERVER_IP = str(socket.gethostbyname(socket.getfqdn()))
demayer 0:6bf0743ece18 71 SERVER_PORT = 7
demayer 0:6bf0743ece18 72
demayer 0:6bf0743ece18 73 # Returning none will suppress host test from printing success code
demayer 0:6bf0743ece18 74 server = UDPServer((SERVER_IP, SERVER_PORT), UDPEchoClient_Handler)
demayer 0:6bf0743ece18 75 print "HOST: Listening for UDP connections..."
demayer 0:6bf0743ece18 76 self.send_server_ip_port(selftest, SERVER_IP, SERVER_PORT)
demayer 0:6bf0743ece18 77 server.serve_forever()