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#!/usr/bin/env python
#
# Copyright 2014 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
from gnuradio import gr, gr_unittest, blocks
import os
import socket
from time import sleep
from threading import Timer
from multiprocessing import Process
class test_tcp_sink(gr_unittest.TestCase):
def setUp(self):
os.environ['GR_CONF_CONTROLPORT_ON'] = 'False'
self.tb_snd = gr.top_block()
self.tb_rcv = gr.top_block()
def tearDown(self):
self.tb_rcv = None
self.tb_snd = None
def _tcp_client(self):
dst = blocks.vector_sink_s()
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
for t in (0, 0.2):
# wait until server listens
sleep(t)
try:
sock.connect((self.addr, self.port))
except socket.error as e:
if e.errno != 111:
raise
continue
break
fd = os.dup(sock.fileno())
self.tb_rcv.connect(blocks.file_descriptor_source(self.itemsize, fd), dst)
self.tb_rcv.run()
self.assertEqual(self.data, dst.data())
def test_001(self):
self.addr = '127.0.0.1'
self.port = 65510
self.itemsize = gr.sizeof_short
n_data = 16
self.data = tuple([x for x in range(n_data)])
# tcp_server_sink blocks until client does not connect, start client process first
p = Process(target=self._tcp_client)
p.start()
src = blocks.vector_source_s(self.data, False)
tcp_snd = blocks.tcp_server_sink(self.itemsize, self.addr, self.port, False)
self.tb_snd.connect(src, tcp_snd)
self.tb_snd.run()
del tcp_snd
self.tb_snd = None
p.join()
def stop_rcv(self):
self.timeout = True
self.tb_rcv.stop()
#print "tb_rcv stopped by Timer"
if __name__ == '__main__':
gr_unittest.run(test_tcp_sink, "test_tcp_server_sink.xml")
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